DC-DC CONVERTERS

High Current, High Efficiency, Low Profile

1

2 YEAR WARRANTY

NEW Product

All specifications are typical at nominal input, full load at 25 °C ambient unless otherwise stated

SPECIFICATIONS

File Name: quarter_brick_single.pdf Rev (07): 17 Nov 2005

Quarter-Brick Series

Single output

International Safety Standard Approvals

UL/cUL CAN/CSA 22.2 No. 60950-00 : UL 60950

File No. E135734/60950

VDE Certificate No. 10401-3336-0197

EMC CHARACTERISTICS

Immunity:

ESD air enclosure

EN61000-4-2 8 kV/6 kV(O/P within spec.)

Radiated field enclosure

EN61000-4-3 10 V/m (O/P within spec.)

Conducted

EN61000-4-6 10 V

(O/P within spec.)

Input transients

100 V, 100 ms

GENERAL SPECIFICATIONS

Basic insulation

Input/output

2250 Vdc

Switching frequency

Fixed

480 kHz

Approvals and

(See Note 3)

EN60950-1 VDE

standards

UL/cUL 60950

Material flammability

UL94V-0

Weight

37 g (1.30 oz)

MTBF

Telcordia Tech SR-332 3,866,933 hours

ENVIRONMENTAL SPECIFICATIONS

Thermal performance

Operating ambient,

-40 °C to +85 °C

temperature

Non-operating

-55 °C to +125 °C

PROTECTION

Short-circuit

Continuous

Overvoltage

Non-latching

Thermal

125 ºC hot spot temperature

with automatic recovery

Patent No. 6,765,810

Other Patents Pending

OUTPUT SPECIFICATIONS

Voltage adjustability

80% to 110%

Minimum load

0%

Overshoot

At turn-on and turn-off

None

Undershoot

None

Transient response

70 mV,

(See Note 1)

typ. deviation

20 µs recovery

INPUT SPECIFICATIONS

Input voltage range

24 V nominal

18-36 Vdc

48 V nominal

36-75 Vdc

Input current

No load

85 mA to 150 mA

Remote OFF

5 mA

Active high remote ON/OFF

Logic compatibility

Open collector ref to -input

ON

Open circuit or >2.4 Vdc

OFF

<0.4 Vdc

Undervoltage lockout

Power up

35.5 V (typ.)

Power down

33.5 V (typ.)

Start-up time

Power up

10 ms (typ.)

(See Note 2)

Remote ON/OFF

10 ms (typ.)

fast transient response

This is a new high efficiency, open-frame, low profile, single board, isolated dc-dc converter

series in an industry standard quarter-brick package that provides up to 200 W of output power.

The series delivers very high output current at low voltages, and excellent useable power for

today’s high performance applications. The series features two input voltage ranges of 18 Vdc

to 36 Vdc and 36 Vdc to 75 Vdc and is available with output voltages of 1.2 V, 1.5 V, 1.8 V,

2.5 V, 3.3 V and 5 V. The output voltage is adjustable from 80% to 110% of the nominal value.

The series also has a remote ON/OFF capability. Overcurrent, overvoltage and overtemperature

protection features are included as standard. Full international safety approval including

EN60950-1 VDE and UL/cUL60950, reduces compliance costs and time to market.