cdtechno PWR1726A, PWR1726A1 Datasheet

Product Data Sheet

PWR1726A/PWR1726A1

1.5 WATT UNREGULATED

DC/DC CONVERTERS

DC/DC CONVERTER

FEATURES

8000V ISOLATION TEST VOLTAGE

•

NO EXTERNAL PARTS REQUIRED

•

SYNCHRONIZABLE

•

REMOTE ON/OFF

•

LOW-BARRIER CAPACITANCE

•

APPLICATIONS

BIOMEDICAL DATA ACQUISITION

•

INDUSTRIAL PROCESS EQUIPMENT

•

DATA ACQUISITION

•

TEST EQUIPMENT

•

PORTABLE EQUIPMENT

•

DESCRIPTION

The PWR1726A/PWR1726A1 is a single-channel, dual­output DC/DC/ converter designed for those applications
where high-isolation voltage and low-barrier capacitance
are critical for system reliability and integrity.

Calculated mean-time-to-failure (MTTF) is in excess of
100 years at an ambient temperature of +25°C and at rated
output power. The performance of the PWR1726A/
PWR1726A1 is not derated over its entire specified
temperature range of -25°C to +85°C.

Synchronization of the PWR1726A/PWR1726A1 may be

Power Electronics Division, United States

3400 E Britannia Drive, Tucson, Arizona 85706

Any data, prices, descriptions or specifications presented herein are subject to revision by C&D Technologies, Inc. without notice. While such infor mation is believed to be accurate as indicated herein, C&D
Technologies, Inc. makes no warranty and hereby disclaims all warranties, express or implied, with regard to the accuracy or completeness of such information. Further, because the product(s) featured herein
may be used under conditions beyond its control, C&D Technologies, Inc. hereby disclaims all warranties, either express or implied, concerning the fitness or suitability of such product(s) for any particular use or
in any specific application or arising from any course of dealing or usage of trade. The user is solely responsible for determining the suitability of the product(s) featured herein for user’s intended purpose and in
user’s specific application. C&D Technologies, Inc. does not warrant or recommend that any of its products be used in any life support or aviation or aerospace applications.

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accomplished simply by connecting the sync pin of one
unit to the sync pin of another unit. In this manner, up to
eight converters may be ganged together.

The PWR1726A/PWR1726A1 provides a plus and minus
output voltage that is approximately equal to the magnitude
of the input voltage. The unit operates over an input
voltage range of 7VDC to 16VDC.

Each PWR1726A/PWR1726A1 isolation barrier is tested
per the method set forth by UL544, VDE750, and CSA
C22.2.

C&D Technologies, (NCL)

Tanners Dr ive Blakelands North

Tel: [phone] Fax: [phone]

Milton Keynes MK14 5BU UK

PWR1726A / A1 4/2002 REV B Page 1

COMMON SPECIFICATIONS

Specifications typical at TA = +25°C, VIN = 15VDC, I

PARAMETER CONDITIONS MIN TYP MAX UNITS

INPUT

Rated Voltage 12 V
Voltage Range 7 16 VDC
Input Current I

Ripple Current I

= 0 30 mA

LOAD

I

= Rated Load 145 165 mA

LOAD

Short Circuit 115 mA

= Rated Load 15 mAp-p

LOAD

ISOLATION

Voltage Rated Continuous
AC, 60Hz 3500 Vrms
DC 5000 V
Test Voltage 60sec, 60Hz 8000 Vpk
Resistance 10 GΩ
Capacitance 10 pF
Leakage Current V

= 240VAC, 60Hz 1 2 µA

ISO

OUTPUT

Rated Voltage I
Voltage Range I

Rated Current Balanced Loads ±50 mA

= Rated Load ±15 VDC

LOAD

Rated Load ±14.25 ±15.75 VDC

LOAD

I

= OmA ±16.0 ±16.5 ±18.0 VDC

LOAD

Current Range Balanced Loads 0 ±90 mA

Single Ended 0 180 mA
Line Regulation 7VDC < V
Load Regulation No Load < I

IN

Ripple Voltage BW = DC to 10MHz

I

= 0 15 mVp-p

LOAD

I

= Rated Load 50 mVp-p

Sync Out (PWR1726-A1 only) Vin = 12VDC, Vout = Rated, Balanced 30 Vp-p

LOAD

GENERAL

MTTF Calculated per

MIL - HDBK - 217 Rev. E

Ground, Benign 25° C 1. 2 MHr
Switching Frequency 120 kHz

TEMPERATURE

Specification -25 +25 +85 °C
Operation -40 +100 °C
Storage -55 +110 °C

= ±50mA and in free-running mode unless otherwise noted.

LOAD

< 18VDC 1.16 mV/mV

< ±50mA 0.3 %/mA

OUT

(referenced to common)

DC

DC

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

MECHANICAL

TOP VIEW

PWR1726A

PWR1726A1

1.125±0.015"

(28.58±0.38)

1.650±.015"

(41.91±0.38)

PIN CONNECTIONS

1 -Vout
14 -Vin
15 SYNC
16 +Vin
18 REMOTE ON/OFF
29 SYNC OUT (PWR1726A1)
30 COMMON
32 +Vout

0.075"

(1.904)

1

32 30 29 18

0.075"

(1.904)

0.200"
(5.08)

SIDE VIEW

0.032±.003"

(.81±.05)

1.300"

(32.99)

BOTTOM VIEW

1.200"

(30.46)

0.100"

(2.538)

415

0.405±0.010"

(10.29)

NOTES:

All dimensions are in inches
(millimeters).

0.130"

(3.30)

GRID: 0.100 inches (2.54
millimeters)

MIN

PIN PLACEMENT TOLERANCE:
±0.015"

16

(.32)

0.1125"

MATERIAL: Units are encapsulated
in a low thermal resistance molding
compound which has excellent
chemical resistance, wide operat­ing temperature range, and good

0.900"

(22.84)

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.

PWR1726A / A1 4/2002 REV BPage 2