Datasheet BMP-5-5-3.3-4-D48S, BMP-5-5-3.3-4-D24S Datasheet (DATEL)

Dual Output

BMP Models

5V and 3.3V, 2" x 3"

35 Watt, DC/DC Converters

Features

For your moderate-power mixed-logic designs, DATEL’s BMP-5/5-3.3/4-D24
(18-36V input) and BMP-5/5-3.3/4-D48 (36-75V input) are fully isolated DC/DC
converters providing both 5V and 3.3V outputs. Housed in DATEL’s standard 2" x 3"
x 0.5" metal packages, these BMP duals can simultaneously source up to 4.7 Amps
from their 5V outputs and up to 3.5 Amps from their 3.3V outputs. Both outputs are
fully isolated (1500Vdc) and independently line (±1.0%) and load (±1.0%) regulated.

Both models feature input pi fi lters, input overvoltage shutdown, input reverse­polarity protection, output overvoltage protection, output current limiting, and thermal
shutdown. Both outputs are controlled via the On/Off Control function (pin 5). The
5 Volt output can be adjusted ±5%.

BMP Model DC/DC’s deliver high effi ciency (82%) and are fully specifi ed for
–40 to +100°C operation. Their corrosion-resistant metal cases have non-conductive
baseplates and threaded inserts for easy heat-sink attachment and/or pcb mounting.
These devices satisfy IEC950, UL1950 and EN60950 safety requirements for BASIC
insulation. CE marking is available for "D48" models.

Figure 1. Simplifi ed Schematic

INNOVATION and EX C ELL E N C

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Independent 5V @ 4.7A and

3.3V @ 3.5A Outputs

Each output fully regulated

35 Watts total output power

Standard 2" x 3" package

UL1950 and EN60950 safety approvals
(BASIC insulation, -D48 model)

Fully isolated, 1500Vdc guaranteed

18-36V or 36-75V input ranges

mark available (75V-input models)

V

OUT trim and on/off control

Fully I/O protected

Thermal shutdown

DATEL, Inc., Mansfi eld, MA 02048 (USA) · Tel: [phone] Fax: [phone] · Email: [e-mail] · Internet: www.datel.com

PWM

CONTROLLER

+INPUT

–INPUT

+5V OUTPUT

ON/OFF

CONTROL

(SYNC)

COMMON

+3.3V OUTPUT

CASE

ISOLATION

REFERENCE &

ERROR

AMPLIFIER

TRIM

PWM

CONTROLLER

REFERENCE &

ERROR

AMPLIFIER

35W, DUAL OUTPUT DC/DC CONVERTERS

XMP Series

3.00

(76.20)

2.600

(66.04)

0.20

(5.08)

0.10

(2.54)

0.120 DIA. (3.048)
(4 PLACES)

0.40

(10.16)

0.50

(12.70)

1.200

(30.48)

2.00

(50.80)

TOP VIEW

MATERIAL: BLACK ANODIZED ALUMINUM
4 MOUNTING SCREWS AND 0.009 (0.229) THERMAL PAD INCLUDED

Performance Specifi cations and Ordering Guide

➀

PART NUMBER STRUCTURE

V1 Nominal Output Voltage:
5 Volts

5

BMP

5-

/

D48-

Input Voltage Range:
D24 = 18-36 Volts (24V nominal)
D48 = 36-75 Volts (48V nominal)

I

1 Maximum Output Current:

4.7 Amps

Dual Output/
Mixed-Voltage Series

3.3 4

/

-

S

V2 Nominal Output Voltage:

3.3 Volts

I2 Maximum Output Current:

3.5 Amps

Add "S" suffi x as desired

Part Number Suffi xes

BMP 35 Watt DC/DC's are designed so an On/Off Control function

with positive polarity (no suffi x) or a Sync function ("S" suffi x) can be

added in the pin 5 position.

No Suffi x On/Off Control function (positive polarity) on pin 5

S Suffi x Sync function on pin 5

BMP-5/5-3.3/4-D24

5 4.7 100 120 ±1% ±1%

24 18-36 35/1870 79% 81% C11, P44

3.3 3.5 100 120 ±1% ±1%

BWR-5/6-3.3/4-D48

5 4.7 100 120 ±1% ±1%

48 36-75 35/923 80% 82% C11, P44

3.3 3.5 100 120 ±1% ±1%

➀ Typical at TA = +25°C under nominal line voltage and "full-load" conditions.
➁ Any combination of 5V/3.3V rated I

OUT current, not to exceed 35 Watts of output power. (See derating graphs.)

➂ Ripple/Noise (R/N) measured over a 20MHz bandwidth. All models are specifi ed with no output capacitors.

Output

Input

➃ Tested from 10% load to 100% load (other output at fi xed load).
➄ Nominal line voltage, no load/balanced full-power condition.

R/N (mVp-p) ➂ Regulation (Max.) Effi ciency

Packag e

V

OUT IOUT ➁ VIN Nom. Range IIN ➄ (Case,

Model (Volts) (Amps) Typ. Max. Line Load ➃ (Volts) (Volts) (mA) Min. Typ. Pinout)

MEC ANICAL SPECIFI CATIONS

2

7

6

8

9

4

1

2

3

5

10

METAL
CASE

BOTTOM VIEW

INSULATED

BASE

(4) THREADED INSERTS
#4-40 THD THRU

1.200

(30.48)

2.500

(63.50)

2.04

(51.82)

0.20 MIN
(5.08)

1.600

(40.64)

4 EQ. SP. @

0.400 (10.16)

0.55

(13.97)

0.040 ±0.002 DIA.
(1.016 ±0.051)

2.600

(66.04)

0.22

(5.59)

0.22

(5.59)

0.27

(6.86)

0.42

(10.67)

3.04

(77.22)

Case C11

I/O Connections

Pin Function P44 Pin Function P44

1 No Pin 6 No Pin

2 –Input 7 +3.3V Output

3 +Input 8 Output Return

4 Case 9 +5V Output

5 On/Off Control 10 Trim

Optional Heat Sink (Part Number HS-23)

BMP Models

35W, DUAL OUTPUT DC/DC CONVERTERS

Performance/Functional Specifi cations

Typical @ TA = +25°C under nominal line voltage, balanced "full-load" conditions, unless noted. ➀

Input

Input Voltage Range:

D24 Models 18-36 Volts (24V nominal)

D48 Models 36-75 Volts (48V nominal)

Overvoltage Shutdown:

D24 Models 36.4-43.6 Volts (40V nominal)

D48 Models 77-85 Volts (83V nominal)

Input Current:

Normal Operating Conditions See Ordering Guide

Standby Mode:

Off, OV, Thermal Shutdown 10mA typical

Input Refl ected Ripple Current:

Source Impedance <0.1Ω, no external input fi ltering

D24 & D48 Models 100mAp-p (typical)

Internal Input Filter Type Pi (4.5µF - 10µH - 7.5µF)

Reverse-Polarity Protection:

D24 Models 1 minute duration, 3A maximum

D48 Models 1 minute duration, 2A maximum

On/Off Control (Pin 5):

➂ ➃ ➅

D24 & D48 Models On = open or 2.6V - +V

IN, IIN = 1.5mA max.

Off = 0-1.2V, I

IN = 1.5mA max.

Output

VOUT Accuracy

5V Output ±1% maximum

3.3V Output ±1.5% maximum

Minimum Loading Per Specifi cation 10%

Ripple/Noise (20MHz BW)

➄ See Ordering Guide

Line/Load Regulation See Ordering Guide

Effi ciency See Ordering Guide

Trim Range +5V Output ±5%

Isolation Voltage:

Input-to-Output 1500Vdc minimum

Case-to-Input 1000Vdc minimum

Case-to-Output 1000Vdc mimimum

Isolation Capacitance 470pF

Isolation Resistance 100MΩ

Temperature Coeffi cient ±0.02%/per°C

Output (continued)

Current Limit Inception:

5V @ 98.5% V

OUT (3.3V @ 3.5A) 6-8 Amps

3.3V @ 98.5% V

OUT (5V @ 4.7A) 5-8 Amps

Short Circuit Current:

5V Output 10 Amps average, continuous

3.3V Output 8 Amps average, continuous

Overvoltage Protection: Magnetic feedback/transorb

5V Output 6.8 volts

Dynamic Characteristics

Dynamic Load Response:

5V (50-100% load step to 3% V

OUT) 300µsec maximum

3.3V (50-100% load step to 3% V

OUT) 300µsec maximum

Switching Frequency 150kHz (±15kHz)

Environmental

MTBF ➆ Bellcore, ground fi xed, full power, +25°C

operating ambient temperature

D24 Models TBC million hours

D48 Models TBC million hours

Operating Temperature (Ambient):

➁ No heat sink

Without Derating: –40 to +50°C

With Derating To +100°C (See Derating Curves)

Case Temperature:

Maximum Operational +100°C

For Thermal Shutdown +95°C minimum, +105°C maximum

Storage Temperature –40 to +120°C

Physical

Dimensions 2.04 x 3.04 x 0.55" (51.8 x 77.2 x 14mm)

Shielding 5-sided

Case Connection Pin 4

Case Material Zinc with a non-conductive, epoxy-based

black enamel fi nish and plastic baseplate

Pin Material Brass, solder coated

Weight: 6 ounces (170 grams)

Primary to Secondary Insulation Level

D24 Models Operational

D48 Models Basic

➀ All models are specifi ed with no external output capacitors.
➁ See Technical Notes/Graphs for details.
➂ Devices may be ordered with On/Off Control function or a Sync function.

See Par t Number Suffi xes and Technical Notes for details.

➃ Applying a voltage to On/Off Control (pin 5) when no input power is applied to the

conver ter may cause permanent damage.

➄ Output noise may be further reduced with the installation of additional external output

capacitors.

➅ On/Off control is designed to be driven with open collector or by appropriate voltage

levels. Voltages must be referenced to the input return pin (–Input).

➆ Demonstrated MTBF available on request.

3

Absolute Maximum Ratings

Input Voltage:

D24 Models 42 Volts
D48 Models 88 Volts

Input Reverse-Polarity Protection Current must be <3A. Brief duration
only. Fusing recommended.

Output Overvoltage Protection

+5V Outputs 6.8 Volts

Output Current Current limited. Maximum current and
short-circuit duration are model
dependent.

Storage Temperature –40 to +105°C

Lead Temperature (Soldering, 10 sec.) +300°C

These are stress ratings. Exposure of devices to any of these conditions may adversely

affect long-term reliability. Proper operation under conditions other than those listed in the

Performance/Functional Specifi cations Table is not implied, nor recommended.

35W, DUAL OUTPUT DC/DC CONVERTERS

XMP Series

4

On/Off Control (Standard)

The On/Off Control pin (pin 5) may be used for remote on/off operation. As

shown in Figure 6, the control pin has an internal 10kΩ pull-up resistor to

approximately 10V. The conver ter is designed so that it is enabled when the

control pin is left open (normal mode) and disabled when the control pin is

pulled low (to less than +1.2V relative to –Input, pin 2).

Dynamic control of the on/off function is best accomplished with a mechani-

cal relay or an open-collector/open-drain drive circuit (optically isolated if

appropriate). The drive circuit should obviously be able to sink approximately

1.5mA when activated and withstand more than 10 Volts when deactivated.

Applying an external voltage to pin 5 when no input power is applied to the

converter can cause permanent damage to the converter. The on/off control

function, however, is designed such that the converter can be disabled (pin

5 pulled low) while input power is ramping up and then "released" once the

input has stabilized. Under these circumstances, it takes approximately 30ms

for the output of the fully loaded DC/DC to ramp up and settle to within ±1%

of its fi nal value after the converter has been turned on.

Synchronization (Optional)

In critical applications employing multiple switching DC/DC converters, it may

be desirable to intentionally synchronize the switching of selected converters

(so the system noise can be reduced with notch fi ltering) or to purposely

desynchronize the converters (to lessen the current-carrying requirements on

intermediate dc buses). BMP DC/DC Converters have been designed so that

the On/Off Control function on pin 5 can be replaced with a Sync function.

This change has to be implemented by DATEL during the product assembly

process. Contact our Applications Engineering Group for additional details.

To synchronize the switching of multiple BMP converters confi gured with the

Sync function, an external clock can be applied to pin 5 of each converter.

The clock should be a TTL square wave referenced to –Input (logic high =

+2 to +5 Volts, 250µA max.; logic low = 0 to +0.8 Volts, 70µA max.) with a

maximum 1µsec "high" duration. The frequency of the synchronizing clock

should be higher than that of any individual converter.

Output Trimming

The total output voltage span of the 5 Volt output, from +5V

Output (pin 9)

to Output Return (pin 8) may be trimmed ±5% via a single trimpot or fi xed

resistor. The trimpot should be connected as shown in Figure 3 with its wiper

connected to pin 10 (Trim). A trimpot can also be used to determine the value

of a single fi xed resistor which can be connected between pin 10 (Trim) and

pin 9 (+5V Output) to trim "down" the output voltages, or between pins 10

(Trim) and 8 (Output Return) to trim "up" the output voltages. Fixed resistors

should have absolute TCR's less than 100ppm/°C to ensure stability.

Case Connection

Unlike most other DC/DC converters, BMP DC/DC's do not have their metal

case connected to one of their input pins. The "uncommitted" case is con-

nected to pin 4 which, depending on your system confi guration, should be

connected to either +Input (pin 3) or –Input (pin 2).

+INPUT

–INPUT

3

2

+10V

10k9

5

ON/OFF
CONTROL

20kΩ
5-22
Turns

+INPUT

+5V OUTPUT

+3.3V OUTPUT

TRIM

OUTPUT
RETURN

–INPUT

3

2

7

9

8

+5V LOAD

+3.3V LOAD

10

+INPUT

+5V OUTPUT

+3.3V OUTPUT

TRIM

OUTPUT
RETURN

–INPUT

3

2

7

9

8

+5V LOAD

+3.3V LOAD

10

R

TRIM DOWN

+INPUT

+5V OUTPUT

+3.3V OUTPUT

TRIM

OUTPUT
RETURN

–INPUT

3

2

7

9

8

+5V LOAD

+3.3V LOAD

10

R

TRIM UP

Figure 2. Driving the On/Off Control Pin

Figure 3. +5V

OUT Trim Connections Using A Trim Pot

Figure 4. +5VOUT Trim Down Connections Using A Fixed Resistor

Figure 5. +5V

OUT Trim Up Connections Using A Fixed Resistor

Note: Resistor values are in kΩ. Accuracy of adjustment is subject to

tolerances of resistors and factory-adjusted output accuracy.

V

O = desired output voltage.

DOWN

5 – VO

RT (kΩ) =

–16.2

2.49(VO – 2.53)

UP

VO – 5

R

T (kΩ) =

–16.2

6.30

BMP Models

35W, DUAL OUTPUT DC/DC CONVERTERS

DA TEL mak es no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do
not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifi cations are subject to change without notice. The DATEL logo is a registered DATEL, Inc. trademark.

DATEL (UK) LTD. Tadley, England Tel: [phone]

DATEL S.A.R.L. Montigny Le Bretonneux, France Tel: [phone]
DATEL GmbH München, Germany Tel: [phone]
DATEL KK Tokyo, Japan Tel: [phone], Osaka Tel: [phone]

DATEL, Inc. 11 Cabot Boulevard, Mansfi eld, MA 02048-1151
Tel: [phone] [phone] Fax: [phone]
Internet: www.datel.com Email: [e-mail]

ISO 9001 REGISTERED

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5

Output Power (Watts)

Ambient Temperature (˚C)

–40 0 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

40

35

30

25

20

15

10

5

0

Natural Convection Cooling
150lfm Air Flow
300lfm Air Flow

Output Power vs. Ambient Temperature

VIN = Nominal Without Additional Heat Sink

Output Power (Watts)

Ambient Temperature (˚C)

–40 0 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

40

35

30

25

20

15

10

5

0

Natural Convection Cooling
150lfm Air Flow
300lfm Air Flow

Output Power vs. Ambient Temperature

V

IN = Nominal With Additional Heat Sink

81.2

81

80.8

80.6

80.4

80.2

80

79.8

79.6

79.4

79.2

BMP-5/5-3.3/4-D24 Efficiency vs. Line Voltage @ Full Load

18 22.5 27 31.5 36

Line Volta ge (Volts)

Efficiency (%)

82.4

82.2

82

81.8

81.6

81.4

81.2

81

80.8

80.6

BMP-5/5-3.3/4-D48 Efficiency vs. Line Voltage @ Full Load

36 45.75 55.5 65.25 75

Line Volta ge (Volts)

Efficiency (%)

Typical Performance Curves

D24 and D48 Models