GE Industrial Solutions KSTW002A5B User Manual

Data Sheet

September 26, 2013

Page 1

Features

 Compliant to REACH Directive (EC) No 1907/2006  Compliant to RoHS II EU “Directive 2011/65/EU”  Ultra-wide Input Voltage Range, 36V

to 75Vdc

 No minimum load  High efficiency – 90% at full load (V

=48Vdc)

 Constant switching frequency  Low output ripple and noise  Small Size and low profile, follows DOSA standard 1/16th

footprint

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

 Surface mount (SMT) or Through hole (TH)  Reflow process compliant, both SMT and TH versions  Positive Remote On/Off logic  Output overcurrent/voltage protection (hiccup)  Over-temperature protection  Output Voltage adjust: 80% to 110% of V

o,nom

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

60950-1-2011 Recognized, CAN/CSA† C22.2 No.60950-1-07, Second Edition + A1:2011 (MOD) Certified IEC 60950-1:2005 (2nd edition) + A1:2009 and EN 60950-

1:2006 +A11:2009 +A1:2010 +A12:2011, and VDE‡0805

(EN60950-1 3rd edition) Licensed

 CE mark meets 2006/95/EC directive

 Meets the voltage and current requirements for ETSI 300-

132-2 and complies with and licensed for Basic insulation rating per EN60950-1

 2250 Vdc Isolation tested in compliance with IEEE 802.3

PoE standards

 ISO** 9001 and ISO 14001 certified manufacturing facilities

Applications

 Wireless Networks  Hybrid power architectures  Optical and Access Network Equipment  Enterprise Networks including Power over Ethernet (PoE)  Industrial markets

Options

 Negative Remote On/Off logic (preferred)

 Surface Mount/Tape and Reel (-SR Suffix)  Auto-restart Over current/Over voltage protections

(preferred)

 Shorter through hole pin trim

Description

The KSTW002A5B series power modules are isolated DOSA compliant 1/16th brick dc-dc converters that operate over a wide input voltage range of 36 Vdc -75Vdc and provide a single precisely regulated output voltage at 12Vdc. The output is fully isolated from the input, allowing versatile polarity configurations and grounding connections. The modules exhibit high efficiency of 90% typical at full load. Built-in filtering for both input and output minimizes the need for external filtering. The module is fully selfprotected with output over-current and over-voltage, over-temperature and input under voltage shutdown control. Optional features include negative or positive on/off logic and SMT connections

*Trademark of General Electric Corporation #UL is a registered trademark of Underwriters Laboratories, Inc.

†

CSA is a registered trademark of Canadian Standards Association.

‡

VDE is a trademark of Verband Deutscher Elektrotechniker e.V.

§ This product is intended for integration into end-user equipment. All of the required procedures of end-use equipment should be followed. ¤ IEEE and 802 are registered trademarks of the Institute of Electrical and Electronics Engineers, Incorporated. ** ISO is a registered trademark of the International Organization of Standards.

RoHS Compliant

KSTW002A5B Barracuda* Series; DC-DC Converter Power Modules

36-75Vdc Input; 12Vdc, 2.5A Output

Data Sheet

KSTW002A5B Barracuda* Series; DC-DC Converter Power Modules

36-75Vdc Input; 12Vdc, 2.5A Output

September 26, 2013

Page 2

Parameter

Device

Symbol

Min

Max

Unit

Input Voltage (Continuous)

All

-0.3

Vdc

Transient (100ms)

All

IN, trans

-0.3

100

Vdc

Operating Ambient Temperature

All

TA -40

°C

(see Thermal Considerations section)

Storage Temperature

All

stg

-55

125

°C

Altitude*

All

4000

I/O Isolation Voltage (100% factory Hi-Pot tested)

All



2250

Vdc

Parameter

Device

Symbol

Min

Typ

Max

Unit

Operating Input Voltage

All

VIN

Vdc

Input No Load Current

All

IN,No load

45 mA

(VIN = 48Vdc IO = 0A, module enabled)

Input Stand-by Current

All

IN,stand-by

8 mA

(VIN = 36 to 48Vdc, module disabled)

Maximum Input Current (VIN=36Vdc, IO= I

O,MAX

)

All

IN, MAX

1.2

Adc

Inrush Transient

All

I2t

0.05

A2s

Input Reflected Ripple Current, peak-to-peak

(5Hz to 20MHz, 12μH source impedance; VIN=36V to 75Vdc, IO= I

Omax

;

see Test configuration section)

All

25 mA

p-p

Input Ripple Rejection (120Hz)

All

60 dB

EMC, EN55022 See EMC Considerations section

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.

* For higher altitude applications, contact your GE Sales Representative for alternative conditions of use.

Electrical Specifications

Unless otherwise indicated, specifications apply at VIN = 48Vdc, resistive load, and TA = 25°C conditions.

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 being part of complex power architecture. 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 fast-acting fuse with a maximum rating of 3A (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.

Data Sheet

KSTW002A5B Barracuda ™ Series; DC-DC Converter Power Modules

36-75Vdc Input; 12Vdc, 2.5A Output

September 26, 2013

Page 3

Parameter

Device

Symbol

Min

Typ

Max

Unit

Output Voltage Set-point

(VIN= 48Vdc, IO=I

O, max

All

O, set

11.82

12.00

12.18

Vdc

Output Voltage

All

VO -3.0  +3.0

% V

O, set

(Over all operating input voltage, resistive load, and temperature conditions until end of life)

Adjustment Range

All

O, adj

-20 +10

% V

O, set

Selected by external resistor

Remote Sense Range

All

+10

% V

O, set

Output Regulation

Line (VIN=V

IN, min

to V

IN, max

)

All

 0.05

0.2

% V

O, set

Load (IO=I

O, min

to I

O, max

)

All

 0.05

0.2

% V

O, set

Temperature (T

ref=TA, min

to T

A, max

)

All



1.0

% V

O, set

Output Ripple and Noise on nominal output

Measured with 10uF Tantalum||1uF ceramic

(VIN= 48Vdc, IO=80%I

O, max

)

RMS (5Hz to 20MHz bandwidth)

All

 30 mV

rms

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

 100

pk-pk

External Capacitance (see Note 1 in Feature Specifications)

All

O, max

0  2200

μF

Output Current

(VIN =36V to 75V)

All

Io 0  2.5

Adc

Output Current Limit Inception (Hiccup Mode)

(VIN =36V to 75V)

All

O, lim

2.7  3.8

Adc

Output Short-Circuit Current (VO ≤ 250 mV)

All

O, s/c



2.7  A

rms

Efficiency (VIN=48Vdc, IO=I

O, max

)

All η

90  %

Switching Frequency (Fixed)

All



350  kHz

VIN=36 to 48Vdc, IO= I

O, max

Dynamic Load Response

(Io/t=0.1A/s)

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

o,max

Peak Deviation

All

Vpk  2 % V

O, set

Settling Time (Vo<10% peak deviation)

All

ts  200

s

Parameter

Symbol

Min

Typ

Max

Unit

Isolation Capacitance

iso



1000  pF

Isolation Resistance

iso



MΩ

I/O Isolation Voltage

All

2250 

Vdc

Parameter

Min

Typ

Max

Unit

Calculated Reliability based upon Telcordia SR-332 Issue 2: Method I Case 3 (IO=80%I

O, max

, TA=40°C, airflow = 200 lfm, 90% confidence)

FIT

>270

109/Hours

MTBF

>3,600,000

Hours

Weight



13 (0.46)



g (oz.)

Electrical Specifications (continued)

Unless otherwise indicated, specifications apply at VIN = 48Vdc, resistive load, and TA = 25°C conditions.

Isolation Specifications

General Specifications

Data Sheet

KSTW002A5B Barracuda* Series; DC-DC Converter Power Modules

36-75Vdc Input; 12Vdc, 2.5A Output

September 26, 2013

Page 4

Parameter

Device

Symbol

Min

Typ

Max

Unit

Remote On/Off Signal Interface

(VIN=V

IN, min

to V

IN, max

; open collector or equivalent,

Signal referenced to V

IN-

terminal)

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 (V

on/off

= -0.7Vdc)

All

on/off



0.15

Logic Low - On/Off Voltage

All

on/off

-0.7  0.8

Vdc

Logic High Voltage (I

on/off

= 0Adc)

All

on/off

2.4  7

Vdc

Logic High maximum allowable leakage current

All

on/off



μA

Turn-On Delay and Rise Times

(IO=80% of I

O, max

)

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

delay

= on/off pin transition until

VO = 10% of V

O, set

)

All

delay

Case1



Case 2: On/Off input is set to Module ON, and then input power is

applied (T

delay

= VIN reaches V

IN, min

until VO = 10% of V

O,set

)

All

delay

Case2



Output voltage Rise time (time for Vo to rise from 10% of V

o,set

to 90% of V

o, set

)

All

rise

 5

Output Voltage Overshoot

% V

O, set

(IO=80% of I

O, max

, VIN= 48Vdc)

Output Overvoltage Protection (see Note1 below)

All

O, limit

14  17

Vdc

Input Undervoltage Lockout

Turn-on Threshold

All

uv/on



Vdc

Turn-off Threshold

All

uv/off

32  Vdc

Hysteresis

All

hyst

 2.0  Vdc

Feature Specifications

Unless otherwise indicated, specifications apply at VIN = 48Vdc, resistive load, and TA = 25°C conditions. See Feature Descriptions for additional information.

Note: 1.The module requires a minimum of 220 μF external output capacitor to avoid exceeding the OVP maximum limits during startup into open loop fault conditions.

Data Sheet

KSTW002A5B Barracuda* Series; DC-DC Converter Power Modules

36-75Vdc Input; 12Vdc, 2.5A Output

September 26, 2013

Page 5

EFFICIENCY,  (%)

INPUT CURRENT, I

(A)

OUTPUT CURRENT, IO (A)

INPUT VOLTAGE, VIN (V)

Figure 1. Converter Efficiency versus Output Current.

Figure 2. Converter Input Current versus Input Voltage.

OUTPUT VOLTAGE

(V) (100mV/div)

OUTPUT CURRENT OUTPUT VOLTAGE

Io(A) (1A/div) V

(V) (200mV/div)

TIME, t (2s/div)

TIME, t (200µs/div)

Figure 3. Typical output ripple and noise (Io = Io,max).

Figure 4. Transient Response to 0.1A/µS Dynamic Load Change from 50% to 75% to 50% of full load, Vin=48V, CO>100μF

On/Off VOLTAGE OUTPUT VOLTAGE

On/Off

(V) (2V/div) V

(V) (5V/div)

INPUT VOLTAGE OUTPUT VOLTAGE

(V) (20V/div) V

(V) (5V/div )

TIME, t (10ms/div)

Figure 5.Typical Start-up Using Remote On/Off, negative logic version shown (VIN = 48V, Io = I

o,max

Figure 6. Typical Start-up Using Input Voltage (VIN = 48V, Io = Io,max).

Characteristic Curves

The following figures provide typical characteristics for the KSTW002A5B (12.0V, 2.5A) at 25oC. The figures are identical for either positive or negative remote On/Off logic.

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GE Industrial Solutions KSTW002A5B User Manual

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