cdtechno PWR1546AH Datasheet

Product Data Sheet

5 WATTS REGULATED

DC/DC CONVERTERS

DC/DC CONVERTERS

PWR1546A

FEATURES

 1mVp-p MAXIMUM OUTPUT NOISE

 5W RATED OUTPUT POWER

 SHORT-CIRCUIT PROTECTION

 SIX-SIDED SHIELDING

 INTERNAL INPUT AND OUTPUT

FILTERING

 FULLY REGULATED

APPLICATIONS

 HIGH RESOLUTION DATA ACQUISTION

 PRECISION TEST EQUIPMENT

 HIGH GAIN AMPLIFIERS

 PRECISION INSTRUMENTATION

DESCRIPTION

The PWR1546A has a maximum of 1mVp-p output noise.
This unit incorporates input and output filtering along with
an internal shield, giving full six-sided shielding that keeps
unwanted radiated noise from your circuit. No external
parts are required to meet the 1mVp-p maximum guaranteed
output noise.

The PWR1546A is a miniature DC/DC converter providing
dual isolated ±15VDC outputs from a single +5VDC input.
Each output will supply full-rated current over the entire

SIMPLIFIED CIRCUIT DIAGRAM

specification range. Each output is regulated and is
protected against all shorts. The isolation barrier is
guaranteed to be 750VDC.

Surface-mounted components and thermal encapsulant
allow superior reliability and excellent thermal dissipation.
The calculated MTTF (per MIL-HDBK-217 Rev. E, Circuit­Stress Analysis Method) is in excess of 100 years at
25°C.

PWR1546A 10/98 REV D Page 1

COMMON SPECIFICATIONS

Specifications typical at TA = +25°C, rated input voltage, rated output current unless otherwise noted.

PARAMETER CONDITIONS MIN TYP MAX UNITS

INPUT

Rated Voltage 5.0 VDC
Voltage Range 4.5 5.5 VDC
Current ILOAD = 0 80 mA

Reflected Ripple Current BW = DC to 10MHz 18 mAp-p

ISOLATION

Rated Voltage 750 VDC
Test Voltage 60 Hz, 10 seconds 750 Vpk
Resistance 10 GΩ
Capacitance 110 pF
Leakage Current V

I

LOAD

= Rated Output 1650 mA

ISO = 240VAC, 60HZ 15 µArms

OUTPUT

Rated Voltage ±15 V
Voltage Setpoint Accuracy Rated Load, Nominal VIN ±1 %
Voltage Balance ±0.5 %
Temperature Coefficient ±0.01 %/°C
Rated Current ±167 mA
Transient Recovery Time To 0.1% of Final Value 10 ms

REGULATION

Line 4.5V

DC to 5.5VDC ±0.02 %

Load 0mA t o ±167mA 0.02 %

OUTPUT NOISE

Ripple and Noise BW = DC to 10MHz 0.6 1.0 mVp-p

GENERAL

Efficiency 60 %
Package Weight 50 g
Switching Frequency 50 kHz
MTTF

per MIL-HDBK-217,Rev E. Cir cuit St ress Method, TA=+25°C 890 kHr

TEMPERATURE

Specification –25 +25 +85 °C
Operating –40 +100 °C
Storage –55 +125 °C

NOTE: Other input and output voltages may be available upon request. Please consult factory.

MECHANICAL

TOP VIEW

PWR1546A

0.200" (5.08)

0.900"

(22.86)

SIDE VIEW

0.400"

(10.16)

0.400"

(10.16)

1.00"

(25.4)

NOTES: All dimensions are in inches
(millimeters).

GRID: 0.100 inches (2.54 millimeters)

Pin Placement Tolerance: ±0.015

Marked with: specific model ordered,
date code, job code.

MATERIAL: Units are encapsulated in
a low thermal resistance molding
compound which has excellent
chemical resistance, wide operating
temperature range, and good
electrical properties under high
humidity environments. The
encapsulant and outer shell of the unit
have UL94V-0 ratings. Lead material
is brass with a solder plated surface
to allow ease of solderability.

DC

0.600"

(15.24)

BOTTOM VIEW

0.800"

(20.32)

PWR1546A 10/98 REV DPage 2