BPB-15/4-Q48 View Datasheet(PDF) - DATEL Data Acquisition products

Part Name

Description

Manufacturer

BPB-15/4-Q48

High-Efficiency, Smaller-Package 25-40 Watt, DC/DC Converters

DATEL Data Acquisition products  

25-40W, DUAL OUTPUT DC/DC CONVERTERS

BPB Models

Performance/Functional Specifications

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

Input

Input Voltage Range:

Q12 Models

D24 Models

Q48 Models

D48 Models

Input Current

10-36 Volts (24V nominal)

18-36 Volts (24V nominal)

18-72 Volts (48V nominal)

36-72 Volts (48V nominal)

See Ordering Guide

Input Filter Type ➂

Pi

Overvoltage Shutdown:

Q12 and D24 Models

Q48" and D48 Models

40 Volts

80 Volts

Reverse-Polarity Protection

Yes (Instantaneous, 6A maximum)

On/Off Control (Pin 5) ➃

TTL high (or open) = on, low = off

Output

VOUT Accuracy (50% load)

±1%, maximum

Temperature Coefficient

±0.02% per °C

Ripple/Noise (20MHz BW) ➂

See Ordering Guide

Line/Load Regulation

See Ordering Guide

Efficiency

See Ordering Guide

Isolation Voltage

750Vdc, minimum

Isolation Capacitance

620pF

Current Limiting

Continuous, auto-recovery

Overvoltage Protection

Zener/transorb clamps, magnetic feedback

Dynamic Characteristics

Transient Response (50% load step) 300µsec max. to ±1.5% of final value

Switching Frequency

125kHz (±10%)

Environmental

Operating Temperature (ambient):

Without Derating

With Derating

Maximum Baseplate Temperature

–25 to +50°C (Model dependent)

to +90°C (See Derating Curves)

+90°C

Storage Temperature

–40 to +105°C

Physical

Dimensions

2" x 3" x 0.5" (50.8 x 76.2 x 12.7mm)

Shielding

6-sided

Case Connection

Pin 4

Case Material

Bright tin-plated steel

Baseplate Material

Aluminum

Pin Material

Brass, solder coated

Weight

4 ounces (113 grams)

➀ These converters require a minimum 10% loading on each output to maintain

specified regulation. Operation under no-load conditions will not damage these devices;

however they may not meet all listed specifications.

➁ "Full load" varies by part number and is determined by the input voltage range as indicated by

the part number suffix. See Technical Notes and Output Power Considerations.

➂ Application-specific input/output filtering can be recommended or perhaps added internally

upon request. Contact DATEL Applications Engineering for details.

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

can cause permanent damage to the converter. If desired, the On/Off Control function can be

replaced with a Sync function. See page 6 of this data sheet for more details.

Absolute Maximum Ratings

Input Voltage:

Q12/D24 Models

Q48/D48 Models

Input Reverse-Polarity Protection

Output Overvoltage Protection

±5V Outputs

±12V Outputs

±15V Outputs

Output Current

Storage Temperature

Lead Temperature (soldering, 10 sec.)

44 Volts

88 Volts

Current must be <6A. Brief

duration only. Fusing recommended.

6.8 Volts (±10%), limited duration

15 Volts (±10%), limited duration

18 Volts (±10%), limited duration

Current limited. Max. current and

short-circuit duration are model

dependent.

–40 to +105°C

+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 Specifications Table is not implied.

TECHNICAL NOTES

Floating Outputs

Since these are isolated DC/DC converters, their outputs are "floating." Any

BPB model may be configured to produce an output of 10V, 24V or 30V (for

±5V, ±12V or ±15V models, respectively) by applying the load across the

+Output and –Output (pins 9 and 6), with either output grounded. The

Common (pin 8) should be left open. Minimum 20% loading is recom-

mended under these conditions. The total output voltage span may be

externally trimmed as described below.

Filtering and Noise Reduction

All BPB 25-40 Watt DC/DC Converters achieve their rated ripple and noise

specifications without the use of external input/output capacitors. In critical

applications, input/output ripple and noise may be further reduced by

installing electrolytic capacitors across the input terminals and/or low-ESR

tantalum or electrolytic capacitors across the output terminals. Output

capacitors should be connected between their respective output pin (pin 6 or

9) and Common (pin 8). See Figure 7. The caps should be located as close

to the power converters as possible. Typical values are listed in the tables

below. In many applications, using values greater than those listed will yield

better results.

To Reduce Input Ripple

Q12, D24 Models

Q48, D48 Models

To Reduce Output Ripple

±5V Outputs

±12/15V Outputs

47µF, 50V

10µF, 100V

47µF, 10V, Low ESR

22µF, 20V, Low ESR

In critical, space-sensitive applications, DATEL may be able to tailor the

internal input/output filtering of these devices to meet your specific require-

ments. Contact our Applications Engineering Group for additional details.

Input Fusing

VIN Range Q12

D24

Q48

D48

FuseValue 4A

4A

3A

2A

3

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