GE Industrial Solutions KNW015A0F User Manual

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Data Sheet

February 28, 2011

KNW015A0F (Sixteenth-Brick) Power Modules:

36 –75Vdc Input; 3.3V Output; 15A Output Current

RoHS Compliant

Applications

 Distributed power architectures

 Wireless networks

 Access and optical networking equipment

including Power over Ethernet (PoE)

 Enterprise networks

 Latest generation IC’s (DSP, FPGA, ASIC) and

Microprocessor powered applications

Options

 Negative Remote On/Off logic

 Over current/Over temperature/Over voltage

protections (auto-restart)

 Surface Mount (Tape and Reel, -SR Suffix)

 Shorter lead trim

Features

 Compliant to RoHS EU Directive 2002/95/EC (-Z

versions)

 Compliant to RoHS EU Directive 2002/95/EC with

lead solder exemption (non-Z versions)

 Delivers up to 15A output current

 High efficiency – 92% at 3.3V full load

 Small size and low profile:

33.0 mm x 22.9 mm x 9.3 mm (1.30 in x 0.9 in x 0.37 in)

 Industry standard DOSA footprint

 -20% to +10% output voltage adjustment trim

 Remote on/off

 Remote sense

 No reverse current during output shutdown

 Over temperature protection

 Output overcurrent/overvoltage protection

(latching)

 Wide operating temperature range (-40°C to 85°C)

 2250 Vdc Isolation tested in compliance with IEEE

PoE standards

802.3

 Meets the voltage isolation requirements for

ETSI 300-132-2 and complies with and is licensed for Basic Insulation rating per EN60950-1

 ANSI/UL

60950-1, 2nd Ed. Recognized, CSA† C22.2 No. 60950-1-07 Certified, and VDE (EN60950-1, 2nd Ed.) Licensed

 CE mark meets 2006/95/EC directive

 ISO** 9001 and ISO 14001 certified manufacturing

facilities

‡

0805-1

Description

The KNW015A0F (Sixteenth-brick) series power modules are isolated dc-dc converters that operate over a wide input voltage range of 36 to 75Vdc and provide a single precisely regulated output. The output is fully isolated from the input, allowing versatile polarity configurations and grounding connections. The modules exhibit high efficiency, typical efficiency of 92% for 3.3V/15A. These open frame modules are available either in surface-mount (-SR) or in through-hole (TH) form.

¤ IEEE and 802 are registered trademarks of the Institute of Electrical and Electronics Engineers, Incorporated. * UL is a registered trademark of Underwriters Laboratories, Inc.

†

CSA is a registered trademark of Canadian S tandards Association.

‡

VDE is a trademark of Verband Deutscher Elektrot echniker e.V.

§ This product is intended for integration into end-use equipment. All of the required procedures of end-us e equipment should be followed. ** ISO is a registered trademark of the International Organization of Standards

Document No: DS10-014 ver 1.0

PDF name: KNW015A0F.pd

Data Sheet February 28, 2011

36 – 75Vdc Input; 3.3Vdc Output; 15A Output Current

KNW015A0F Series Power Modules:

Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability.

Parameter Device Symbol Min Max Unit

Operating Input Voltage

Continuous All V

Transient (100 ms) All V

Operating Ambient Temperature

(see Thermal Considerations section)

All T

Storage Temperature All T

I/O Isolation voltage (100% Factory Hi-Pot tested) All

IN,trans

stg

 

-0.3 80 Vdc

-0.3 100 Vdc

-40 85 °C

-55 125 °C

2250 Vdc

Electrical Specifications

Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.

Parameter Device Symbol Min Typ Max Unit

Operating Input Voltage All VIN 36 48 75 Vdc

Maximum Input Current

(VIN= V

IN, min

to V

IN, max

Input No Load Current

(VIN = V

, IO = 0, module enabled)

IN, nom

Input Stand-by Current

(VIN = V

, module disabled)

IN, nom

, IO=I

)

O, max

All I

IN,max

IN,No load

6 8

IN,stand-by

Inrush Transient All I2t 0.1 A2s

1.8 2.0

45 mA

Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 1μH source impedance; V V

= I

IN, max, IO

; See Test configuration section)

Omax

IN, min

All 30 mA

p-p

Input Ripple Rejection (120Hz) All 60 dB

EMC, EN55022 See EMC Considerations section

CAUTION: This power module is not internally fused. An input line fuse must always be used.

This power module can be used in a wide variety of applications, ranging from simple standalone operation to an integrated part of sophisticated power architectures. To preserve maximum flexibility, internal fusing is not included, however, to achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a time-delay fuse with a maximum rating of 5 A (see Safety Considerations section). Based on the information provided in this data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data sheet for further information.

LINEAGE POWER 2

Data Sheet February 28, 2011

36 – 75Vdc Input; 3.3Vdc Output; 15A Output Current

KNW015A0F Series Power Modules:

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Output Voltage Set-point

(VIN=V

IN, min

, IO=I

, TA=25°C)

O, max

All V

O, set

Output Voltage

(Over all operating input voltage, resistive load,

All V

and temperature conditions until end of life)

Adjustment Range

Selected by an external resistor

All V

O, adj

Output Regulation

Line (VIN=V

Load (IO=I

Temperature (T

IN, min

O, min

to V

to I

ref=TA, min

) All

IN, max

) All

O, max

to T

) All

A, max

Output Ripple and Noise on nominal output

(VIN=V

RMS (5Hz to 20MHz bandwidth) Peak-to-Peak (5Hz to 20MHz bandwidth)

External Capacitance All C

Rated Output Current All I

Output Current Limit Inception (Hiccup Mode )

(VO= 90% of V

Output Short-Circuit Current

(VO≤250mV) ( Hiccup Mode )

Efficiency

VIN= V

Switching Frequency All f

,IO= I

IN, nom

; TA=25°C; IO=I

IN, nom

O, set

O, max

)

, TA=T

to T

A, min

O, max ; VO

)

A, max

O, max

O, Rated

O, lim

O, s/c

= V

O,set

All

All I

All η 92.0 %

Dynamic Load Response

(dIO/dt=0.1A/s; VIN = V

IN, nom

; TA=25°C)

Load Change from IO= 50% to 75% or 25% to 50% of I

O,max

;

Peak Deviation All V

Settling Time (VO<10% peak deviation)

(dIO/dt=1.0A/s; VIN = V

IN, nom

; TA=25°C)

Load Change from IO= 50% to 75% or 25% to 50% of I

O,max

;

Peak Deviation All V

Settling Time (VO<10% peak deviation)

All t

3.25 3.3 3.35 V

-3.0 +3.0 % V

-20.0

     

 

+10.0 % V

0.1 % V

1.0 % V

25 30 mV 75 100 mV

O, set

rms

pk-pk

20,000 μF



115 120 130 %I



400

15 Adc

O, Rated



rms

kHz

 

200

  s

% V

O, set

 

200

  s

% V

O, set

Isolation Specifications

Parameter Device Symbol Min Typ Max Unit

Isolation Capacitance All C

Isolation Resistance All R

I/O Isolation Voltage All All

iso



10  

1000

 



2250 Vdc

LINEAGE POWER 3

MΩ

Data Sheet

)

February 28, 2011

36 – 75Vdc Input; 3.3Vdc Output; 15A Output Current

KNW015A0F Series Power Modules:

General Specifications

Parameter Device Symbol Min Typ Max Unit

Calculated Reliability Based upon Telcordia SR332 Issue 2: Method

=40°C, Airflow = 200 lfm), 90% confidence

T Powered Random Vibration (VIN=V T

=25°C, 0 to 5000Hz, 10Grms)

I, Case 3, (I

=80%I

IN, min

O, max

, IO=I

O, max

Weight All

All MTBF 4,589,027 Hours

All FIT 217.9 109/Hours

All 90 Minutes



15.6

(0.55)



(oz.)

Feature Specifications

Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See Feature Descriptions for additional information.

Parameter Device Symbol Min Typ Max Unit

Remote On/Off Signal Interface

(VIN=V

signal referenced to V

Negative Logic: device code suffix “1”

Logic Low = module On, Logic High = module Off

Positive Logic: No device code suffix required

Logic Low = module Off, Logic High = module On

Logic Low - Remote On/Off Current All I

Logic Low - On/Off Voltage All V

Logic High Voltage – (Typ = Open Collector) All V

Logic High maximum allowable leakage current All I

Turn-On Delay and Rise Times

(IO=I

Case 1: On/Off input is set to Logic Low (Module ON) and then input power is applied (delay from instant at which V

Case 2: Input power is applied for at least 1 second and then the On/Off input is set from OFF to ON

delay

10% of V

Output voltage Rise time (time for Vo to rise from

10% of V

to V

IN, min

O, max , VIN=VIN, nom, TA

; open collector or equivalent,

IN, max

terminal)

IN-

= 25 oC)

= V

until VO=10% of V

IN, min

= from instant at which VIN=V

to 90% of V

O,set

O, set

)

IN, min

O,set

until VO =

)

All T

on/off

― 13 20 msec

delay

― 30 35 msec

delay

rise

 

-0.7



5 V

 

― 6 10 msec

1.0 mA

1.2 V

10 μA

Output voltage overshoot – Startup

IO= I

O, max

; VIN=V

IN, min

to V

, TA = 25 oC

IN, max

Remote Sense Range All +10 % V

Output Overvoltage Protection

Input Undervoltage Lockout

Turn-on Threshold All V

Turn-off Threshold All V

Hysterisis All V

All V

O, limit

uv/on

uv/off

hyst

4.0

32.5 34.0 35.8 Vdc

30.0 31.0 33.0 Vdc

― 3 % V



4.6 Vdc

 

Vdc

O, set

LINEAGE POWER 4

Data Sheet

OUTPUT

RRENT

OUTPUT

VOLTAGE

February 28, 2011

36 – 75Vdc Input; 3.3Vdc Output; 15A Output Current

KNW015A0F Series Power Modules:

Characteristic Curves

The following figures provide typical characteristics for the KNW015A0F (3.3V, 15A) at 25 identical for either positive or negative remote On/Off logic.

C. The figures are

EFFICIENCY,  (%)

OUTPUT CURRENT, Io (A)

20 30 40 50 60 70 80 90

0.5m/s

1.0m/s

(200 LFM)

(400 LFM)

2.0m/s

OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA OC

Figure 1. Converter Efficiency versus Output Current. Figure 4. Derating Output Current versus Local

Ambient Temperature and A i rflow.

(V) (2V/div)

On/off

(V) (20mV/div)

OUTPUT VOLTAGE

(V) (1V/div) V

TIME, t (1s/div)

Figure 2. Typical outpu t ripple and noise (V I

o = Io,max).

IN = VIN,NOM,

OUTPUT VOLTAGE On/Off VOLTAGE

TIME, t (5ms/div)

Figure 5. Typical Start-up Using Remote On/Off, negative logic version shown (VIN = VIN,NOM, Io = Io,max).

(V) (20V/div)

(V) (100mV/div)

(V) (1V/div) V

Io (A) (5A/div) V

TIME, t (200 s /div)

Figure 3. Transient Response to Dynamic Load Change, 1.0A/µS, from 75% to 50% to 75% of full load.

OUTPUT VOLTAGE INPUT VOLTAGE

TIME, t (5ms/div)

Figure 6. Typical Start-up Using Input Voltage (VIN = V

IN,NOM, Io = Io,max).

LINEAGE POWER 5

Data Sheet February 28, 2011

Test Configurations

SCOPE

Vout+

Vout-

CURRENT PROBE

33μF

RESISTIVE

LOAD

contactRdistribution

x 100 %

Vin+

Vin-

LOAD

TO OSCILLOSCOPE

TEST

12μH

CS 220μF

BATTERY

NOTE: Measure input reflected ripple current with a simulated

E.S.R.<0.1

@ 20°C 100kHz

source inductance (L possible battery impedance. Measure current as shown above.

) of 12μH. Capacitor CS offsets

TEST

Figure 7. Input Reflected Ripple Current Test Setup.

COPPER STRIP

V O (+)

V O ( – )

NOTE: All voltage measurements to be taken at the module

0.1uF

terminals, as shown above. If sockets are used then Kelvin connections are requi red at the module terminals to avoid measurement err ors due to socket contact resistance.

10uF

GROUND PLANE

Figure 8. Output Ripple and Noise Test Setup.

contact

distribution

contact

distribution

NOTE: All voltage measurements to be taken at t he module

terminals, as shown above. If sockets are used then Kelvin connections are required at the module terminals to avoid measurement errors due to socket contact resistance.

Vin+

Vin-

Figure 9. Output Voltage and Effici ency Tes t Setup.

. I

Efficiency



VIN. I

KNW015A0F Series Power Modules:

36 – 75Vdc Input; 3.3Vdc Output; 15A Output Current

Design Considerations

Input Filt ering

The power module should be connected to a low ac-impedance source. Highly inductive source impedance can affect the stability of the power module. For the test configuration in Figure 7, a 33μF electrolytic capacitor (ESR<0.7 at 100kHz), mounted close to the power module helps ensure the stability of the unit. Consult the factory for further application guidelines.

Safety Considerations

For safety-agency approval of the system in which the power module is used, the power module must be installed in compliance with the spacing and separation requirements of the end-use safety agency standard, i.e., UL60950-1 2 60950-1 2

Ed., and VDE0805-1 EN60950-1 2nd Ed.

Ed., CSA C22.2 No.

If the input source is non-SELV (ELV or a hazardous voltage greater than 60 Vdc and less than or equal to 75Vdc), for the module’s output to be considered as meeting the requirements for safety extra-low voltage (SELV), all of the following must be true:

 The input source is to be provided with reinforced

insulation from any other hazardous voltages, including the ac mains.

 One V

pin and one V

pin are to be

OUT

grounded, or both the input and output pins are to be kept floating.

 The input pins of the module are not operator

accessible.

 Another SELV reliability test is conducted on the

whole system (combination of supply source and subject module), as required by the safety agencies, to verify that under a single fault, hazardous voltages do not appear at the module’s output.

Note: Do not ground either of the input pins of the

module without grounding one of the output pins. This may allow a non-SELV voltage to appear between the output pins and ground.

The power module has extra-low voltage (ELV) outputs when all inputs are ELV.

All flammable materials used in the manufacturing of these modules are rated 94V-0, or tested to the UL60950 A.2 for reduced thickness.

For input voltages exceeding –60 Vdc but less than or equal to –75 Vdc, these converters have been evaluated to the applicable requirements of BASIC INSULATION between secondary DC MAINS DISTRIBUTION input (classified as TNV-2 in Europe) and unearthed SELV outputs.

The input to these units is to be provided with a maximum 5 A time-delay fuse in the ungrounded lead.

LINEAGE POWER 6

Data Sheet

February 28, 2011

36 – 75Vdc Input; 3.3Vdc Output; 15A Output Current

Feature Description

Remote On/Off

Two remote on/off options are available. Positive logic turns the module on during a logic high voltage on the ON/OFF pin, and off during a logic low. Negative logic remote On/Off, device code suffix “1”, turns the module off during a logic high and on during a logic low.

Vin+

on/off

ON/OFF

Vin-

Figure 10. Remote On/Off Implementation.

To turn the power module on and off, the user must supply a switch (open collector or equivalent) to control the voltage (V terminal and the V low is 0V ≤ V

≤ 1.2V. The maximum I

on/off

) between the ON/OFF

on/off

(-) terminal (see Figure 9). Logic

logic low is 1mA; the switch should be maintaining a logic low level while sinking this current.

During a logic high, the typical maximum V generated by the module is 15V, and the maximum allowable leakage current at V

If not using the remote on/off feature:

For positive logic, leave the ON/OFF pin open. For negative logic, short the ON/OFF pin to V

Remote Sense

Remote sense minimizes the effects of distribution losses by regulating the voltage at the remote-sense connections (See Figure 10). The voltage between the remote-sense pins and the output terminals must not exceed the output voltage sense range given in the Feature Specifications table:

[VO(+) – VO(–)] – [SENSE(+) – SENSE(–)]  10% V

The amount of power delivered by the module is defined as the voltage at the output terminals multiplied by the output current. When using remote sense and trim, the output voltage of the module can be increased, which at the same output current would increase the power output of the module. Care should

Vout+

TRIM

Vout-

= 5V is 1μA.

on/off

during a

(-).

O,set

KNW015A0F Series Power Modules:

be taken to ensure that the maximum output power of the module remains at or below the maximum rated power (Maximum rated power = V

SENSE(+)

SENSE(–)

I(+)

SUPPLY

CONTACT

RESISTANCE

VO(+)

I(-)

O(–)

Figure 11. Circuit Configuration for remote sense.

Input Undervoltage Lockout

At input voltages below the input undervoltage lockout limit, the module operation is disabled. The module will only begin to operate once the input voltage is raised above the undervoltage lockout turn-on threshold, V

UV/ON

Once operating, the module will continue to operate until the input voltage is taken below the undervoltage turn-off threshold, V

UV/OFF

Overtemperature Protection

To provide protection under certain fault conditions, the unit is equipped with a thermal shutdown circuit. The unit will shutdown if the thermal reference point T

(Figure 13), exceeds 128-133oC (typical)

ref

depending on T

and airflow, but the thermal

shutdown is not intended as a guarantee that the unit will survive temperatures beyond its rating. The module can be restarted by cycling the dc input power for at least one second or by toggling the remote on/off signal for at least one second. If the auto-restart option (4) is ordered, the module will automatically restart upon cool-down to a safe temperature.

Output Overvoltage Protection

The output over voltage protection scheme of the modules has an independent over voltage loop to prevent single point of failure. This protection feature latches in the event of over voltage across the output. Cycling the on/off pin or input voltage resets the latching protection feature. If the auto-restart option (4) is ordered, the module will automatically restart upon an internally programmed time elapsing.

Overcurrent Protection

To provide protection in a fault (output overload) condition, the unit is equipped with internal current-limiting circuitry and can endure current limiting continuously. At the point of current-limit inception, the unit enters hiccup mode. If the unit is not configured with auto–restart, then it will latch off following the over current condition. The module can be restarted by cycling the dc input power for at least one second, or by toggling the remote on/off signal for at least one second. If the unit is configured with the

x I

o,set

DISTRIBUTION LOSS

o,max

LOAD

CONTACT AND

LINEAGE POWER 7

Data Sheet



February 28, 2011

36 – 75Vdc Input; 3.3Vdc Output; 15A Output Current

Feature Descriptions (continued)

auto-restart option (4), it will remain in the hiccup mode as long as the overcurrent condition exists; it operates normally, once the output current is brought back into its specified range. The average output current during hiccup is 10% I

Output Voltage Programming

Trimming allows the output voltage set point to be increased or decreased. This is accomplished by connecting an external resistor between the TRIM pin and either the V

VIN(+)

ON/OFF

VIN(-)

Figure 12. Circuit Configuration to Trim Output Voltage.

Connecting an external resistor (R the TRIM pin and the Vo(-) (or Sense(-)) pin decreases the output voltage set point. To maintain set point accuracy, the trim resistor tolerance should be ±1.0%.

The following equation determines the required external resistor value to obtain a percentage output voltage change of Δ%

Where

For example, to trim-down the output voltage of 3.3V module (KNW015A0F) by 8% to 3.036V, R calculated as follows:

Connecting an external resistor (R TRIM pin and the V the output voltage set point. The following equations determine the required external resistor value to obtain a percentage output voltage change of Δ%:

(+) pin or the VO(-) pin.

VO(+)

VOTRIM

VO(-)

511







downtrim





downtrim











  

desiredseto

seto

511









downtrim

(+) (or Sense (+)) pin increases

O, max

trim-up

LOAD

trim-down

) between

trim-down







22.10

 

 

100%



 

trim-down

8% 





22.10

 

6.53

) between the

trim-up

KNW015A0F Series Power Modules:



Where





uptrim

 

,seto

 







For example, to trim-up the output voltage of 3.3V module (KNW015A0F) by 5% to 3.465V, R calculated is as follows:







uptrim





The voltage between the Vo(+) and Vo(–) terminals must not exceed the minimum output overvoltage protection value shown in the Feature Specifications table. This limit includes any increase in voltage due to remote-sense compensation and output voltage set-point adjustment trim.

Although the output voltage can be increased by both the remote sense and by the trim, the maximum increase for the output voltage is not the sum of both. The maximum increase is the larger of either the remote sense or the trim. The amount of power delivered by the module is defined as the voltage at the output terminals multiplied by the output current. When using remote sense and trim, the output voltage of the module can be increased, which at the same output current would increase the power output of the module. Care should be taken to ensure that the maximum output power of the module remains at or below the maximum rated power (Maximum rated power = V

o,set

x I

o,max



%)100(11.5

511





%225.1



setodesired

seto





5225.1



 

100%



 

5% 

511

)5100(0.511.5





trim-up





22.10

 





22.10

 

uptrim

6.325

Thermal Considerations

The power modules operate in a variety of thermal environments; however, sufficient cooling should be provided to help ensure reliable operation.

Considerations include ambient temperature, airflow, module power dissipation, and the need for increased reliability. A reduction in the operating temperature of the module will result in an increase in reliability. The thermal data presented here is based on physical measurements taken in a wind tunnel.

The thermal reference points, Tref specifications are shown in Figure 13. For reliable operation, the temperature of both Tref points should not exceed 125

, used in the

LINEAGE POWER 8

Data Sheet February 28, 2011

Thermal Considerations (continued)

KNW015A0F Series Power Modules:

36 – 75Vdc Input; 3.3Vdc Output; 15A Output Current

Figure 15. KNW015A0F Quasi Peak Conducted Emissions with EN 55022 Class A limits, Figure 14 filter (V

= V

IN,NOM

, Io = 0.80 I

o,max

Layout Considerations

Avoid placing copper areas on the outer layer of the application PCB directly underneath the power module in the keep out areas shown in the Recommended Pad Layout figures. Also avoid placing via interconnects underneath the power module in these keep out areas.

Figure 13. Tref Location.

Please refer to the Application Note “Thermal Characterization Process For Open-Frame BoardMounted Power Modules” for a detailed discussion of thermal aspects including maximum device temperatures.

Temperature Measurement

EMC Considerations

The KNW015A0F series module shall also meet limits of EN55022 Class A with a recommended single stage filter, shown in Figure 14. Please contact your Lineage Power Sales Representative for further information.

Figure 14. Single stage filter used for test results.

LINEAGE POWER 9

Data Sheet February 28, 2011

36 – 75Vdc Input; 3.3Vdc Output; 15A Output Current

Surface Mount Information

Pick and Place

The KNW015A0F modules use an open frame construction and are designed for a fully automated assembly process. The pick and place locations on the module are the larger magnetic core or the transistor package as shown in Figure 16. The modules are fitted with a label which meets all the requirements for surface mount processing, as well as safety standards, and is able to withstand reflow temperatures of up to 300 product information such as product code, serial number and the location of manufacture.

Figure 16. Pick and Place Locations.

Nozzle Recommendations

The module weight has been kept to a minimum by using open frame construction. Even so, these modules have a relatively large mass when compared to conventional SMT components. Variables such as nozzle size, tip style, vacuum pressure and placement speed should be considered to optimize this process. The recommended nozzle diameter for reliable operation is 5mm. Oblong or oval nozzles up to 11 x 5 mm may also be used within the space available.

Tin Lead Soldering

The KNW015A0F power modules (both non-Z and –Z codes) can be soldered either in a conventional Tin/Lead (Sn/Pb) process. The non-Z version of the KNW015A0F modules are RoHS compliant with the lead exception. Lead based solder paste is used in the soldering process during the manufacturing of these modules. These modules can only be soldered in conventional Tin/lead (Sn/Pb) process. It is recommended that the customer review data sheets in order to customize the solder reflow profile for each application board assembly. The following instructions must be observed when soldering these units. Failure to observe these instructions may result in the failure of or cause damage to the modules, and can adversely affect long-term reliability.

C. The label also carries

KNW015A0F Series Power Modules:

In a conventional Tin/Lead (Sn/Pb) solder process peak reflow temperatures are limited to less than

235

C. Typically, the eutectic solder melts at 183oC, wets the land, and subsequently wicks the device connection. Sufficient time must be allowed to fuse the plating on the connection to ensure a reliable solder joint. There are several types of SMT reflow technologies currently used in the industry. These surface mount power modules can be reliably soldered using natural forced convection, IR (radiant infrared), or a combination of convection/IR. For reliable soldering the solder reflow profile should be established by accurately measuring the modules CP connector temperatures.

300

250

200

15 0

10 0

REFLOW TEMP (C)

Figure 17. Reflow Profile for Tin/Lead (Sn/Pb) process

240

235

230

225

220

215

210

MAX TEMP SOLDER (C)

205

200

0 102030405060

Figure 18. Time Limit Curve Above 205oC for Tin/Lead (Sn/Pb) process

Peak Temp 235oC

Heat zone

oCs-1

max 4

So ak zone 30-240s

Preheat zo ne

oCs-1

max 4

REFLOW TIME (S)

lim

205

Co o ling zo ne 1- 4

above

oCs-1

LINEAGE POWER 10

Data Sheet February 28, 2011

36 – 75Vdc Input; 3.3Vdc Output; 15A Output Current

Surface Mount Information (continued)

Lead Free Soldering

The –Z version of the KNW015A0F modules are leadfree (Pb-free) and RoHS compliant, and are both forward and backward compatible in a Pb-free and a SnPb soldering process. The non-Z version of the KNW015A0F modules are RoHS compliant with the lead exception. Lead based solder paste is used in the soldering process during the manufacturing of these modules. These modules can only be soldered in conventional Tin/lead (Sn/Pb) process. Failure to observe the instructions below may result in the failure of or cause damage to the modules and can adversely affect long-term reliability.

Pb-free Reflow Profile

Power Systems will comply with J-STD-020 Rev. C (Moisture/Reflow Sensitivity Classification for Nonhermetic Solid State Surface Mount Devices) for both Pb-free solder profiles and MSL classification procedures. This standard provides a recommended forced-air-convection reflow profile based on the volume and thickness of the package (table 4-2). The suggested Pb-free solder paste is Sn/Ag/Cu (SAC). The recommended linear reflow profile using Sn/Ag/Cu solder is shown in Figure 19.

MSL Rating

The KNW015A0F modules have a MSL rating of 3.

Storage and Handling

The recommended storage environment and handling procedures for moisture-sensitive surface mount packages is detailed in J-STD-033 Rev. A (Handling, Packing, Shipping and Use of Moisture/Reflow Sensitive Surface Mount Devices). Moisture barrier bags (MBB) with desiccant are required for MSL ratings of 2 or greater. These sealed packages should not be broken until time of use. Once the original package is broken, the floor life of the product at conditions of varies according to the MSL rating (see J-STD-033A). The shelf life for dry packed SMT packages will be a minimum of 12 months from the bag seal date, when stored at the following conditions: < 40° C, < 90% relative humidity.

 30°C and 60% relative humidity

KNW015A0F Series Power Modules:

300

Per J-STD-020 Rev. C

250

200

150

100

Reflow Temp (°C)

Heat ing Zone 1°C/Second

Peak Temp 260°C

* Min. Time Above 235°C 15 Seconds

*Time Above 217°C

60 Seconds

Reflow Time (Seconds)

Cooling Zone

Figure 19. Recommended linear reflow profile using Sn/Ag/Cu solder.

Through-Hole Lead-Free Soldering Information

The RoHS-compliant through-hole products use the SAC (Sn/Ag/Cu) Pb-free solder and RoHS-compliant components. They are designed to be processed through single or dual wave soldering machines. The pins have an RoHS-compliant finish that is compatible with both Pb and Pb-free wave soldering processes. A maximum preheat rate of 3 wave preheat process should be such that the temperature of the power module board is kept below

C. For Pb solder, the recommended pot

210 temperature is 260

C, and, for Pb-free solder, the

recommended pot temperature is 270 RoHS-compliant through-hole products can be processed with paste-through-hole Pb or Pb-free reflow process. If additional information is needed, please consult with your Lineage Power representative for more details.

C/s is suggested. The

C max. Not all

Post Solder Cleaning and Drying Considerations

Post solder cleaning is usually the final circuit-board assembly process prior to electrical board testing. The result of inadequate cleaning and drying can affect both the reliability of a power module and the testability of the finished circuit-board assembly. For guidance on appropriate soldering, cleaning and

drying procedures, refer to Lineage Power Board Mounted Power Modules: Soldering and Cleaning

Application Note (AN04-001).

LINEAGE POWER 11

Data Sheet February 28, 2011

36 – 75Vdc Input; 3.3Vdc Output; 15A Output Current

Mechanical Outline for Surface Mount Module

Dimensions are in millimeters and [inches].

Tolerances: x.x mm

x.xx mm

 0.5 mm [x.xx in.  0.02 in.] (unless otherwise indicated)

 0.25 mm [x.xxx in  0.010 in.]

Top View

Side View

KNW015A0F Series Power Modules:

Bottom View

PIN FUNCTION

1 VIN(+) 2 On/Off 3 VIN(-) 4 Vo(-) 5 Sense(-) 6 Trim 7 Sense(+) 8 Vo(+)

LINEAGE POWER 12

Data Sheet February 28, 2011

36 – 75Vdc Input; 3.3Vdc Output; 15A Output Current

Mechanical Outline for Through-Hole Module

Dimensions are in millimeters and [inches].

Tolerances: x.x mm

x.xx mm

 0.5 mm [x.xx in.  0.02 in.] (unless otherwise indicated)

 0.25 mm [x.xxx in  0.010 in.]

Top View

Side View

KNW015A0F Series Power Modules:

Bottom View

PIN FUNCTION

1 VIN(+) 2 On/Off 3 VIN(-) 4 Vo(-) 5 Sense(-) 6 Trim 7 Sense(+) 8 Vo(+)

LINEAGE POWER 13

Data Sheet February 28, 2011

Recommended Pad Layout

Dimensions are in and millimeters [inches].

Tolerances: x.x mm

x.xx mm

 0.5 mm [x.xx in.  0.02 in.] (unless otherwise indicated)

 0.25 mm [x.xxx in  0.010 in.]

KNW015A0F Series Power Modules:

36 – 75Vdc Input; 3.3Vdc Output; 15A Output Current

SMT Recommended Pad Layout (Component Side View)

TH Recommended Pad Layout (Component Side View)

LINEAGE POWER 14

Data Sheet February 28, 2011

36 – 75Vdc Input; 3.3Vdc Output; 15A Output Current

KNW015A0F Series Power Modules:

Packaging Details

The Sixteenth-brick SMT versions are supplied in tape & reel as standard. Details of tape dimensions are shown below. Modules are shipped in quantities of 140 modules per reel.

Tape Dimensions

Dimensions are in millimeters.

LINEAGE POWER 15

Data Sheet

February 28, 2011

36 – 75Vdc Input; 3.3Vdc Output; 15A Output Current

KNW015A0F Series Power Modules:

Ordering Information

Please contact your Lineage Power Sales Representative for pricing, availability and optional features.

Table 1. Device Code

Product Codes Input Voltage

Output

Voltage

KNW015A0F41-SRZ 48V (36-75Vdc) 3.3V 15A Negative Surface mount CC109162285 KNW015A0F41Z 48V (36-75Vdc) 3.3V 15A Negative Through Hole CC109163936

Table 2. Device Coding Scheme and Options

Characteristic Definition

Form Fac tor K K = Sixteenth Bric k Family Designator N Input Voltage W W = W ide Range, 36V-75V Output Current 015A0 015A0 = 015.0 Amps Maximum Output Current

Ratings

Output Voltage F F = 3.3V nominal

Pin Length

Action following Protect ive Shutdown

On/Off Logic

Options

Mechanical Feat ures

Customer Specific XY XY = Customer Spec ific Modified Code, Omit for Standard Code

RoHS

Character and Posi t i on

6 6 = Pin Length: 3.68 mm ± 0.25mm , (0.145 in. ± 0.010 in.) 8 8 = Pin Length: 2.79 mm ± 0.25mm , (0.110 in. ± 0.010 in.)

4 4 = Auto-res tart following shutdown (Overcurrent/ Overvoltage)

1 1 = Negative Logic

Output

Current

SR SR = S urface mount c onnect ions & tape/reel package

Z Z = RoHS 6/6 Compliant, Lead free

On/Off Logic

Omit = Default Pin Length s hown in Mechanical Outline Figures

Omit = Latching Mode

Omit = Pos itive Logic

Omit = St andard open Frame Module

Omit = RoHS 5/6, Lead Based Solder Used

Connector

Type

Comcode

Asia-Pacific Headquarters

Tel: +65 6593 7211

World Wide Headquarters Lineage Power Corporation

601 Shiloh Road, Plano, TX 75074, USA +1-800-526-7819 (Outside U.S.A.: +1-972-244-9428)

www.lineagepower.com e-mail: techsupport1@lineagepower.com

Lineage Power reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or

pplication. No rights under any patent accompany the sale of any such product(s) or information.

Lineage Power DC-DC products are protected under various patents. Information on these patents is available at www.lineagepower.com/patents.

2009 Lineage Power Corporation, (Plano, Texas) All International Rights Reserved.

Europe, Middle-East and Africa Headquarters

Tel: +49 89 878067-280

India Headquar t er s

Tel: +91 80 28411633

Document No: DS10-014 ver 1.0

PDF name: KNW015A0F.pdf

GE Industrial Solutions KNW015A0F User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual