Rev.07.20.07

vrm series

2 of 7

Embedded Power for

Business-Critical Continuity

Unless otherwise stated, all specifications are typical at nominal input, maximum

continuous rated load at 25 °C and voltages are referenced to Vin-.

Specifications

GENERAL CHARACTERISTICS

Efficiency

1.5 V output @ 60 A

84% typ.

Switching frequency

Fixed (See Note 4)

830 kHz

Approvals and standards

IEC/EN60950 VDE

Material flammability

UL94V-0

Weight

<52 g (<2 oz)

MTBF

Telcordia SR-332

>2,000,000 hours

Mating connector

Tyco/Elcon

283-0172-01303

(See Table 1 for pin out)

Connector fingers

Gold plated, 30 μ-inches

ENVIRONMENTAL SPECIFICATIONS

Maximum temperature

Operating

5 °C/10 min.

shock

Temperature shock

Operating

10 °C/hour

Non-operating

20 °C/hour

Humidity

Operating

85% RH

(Non-condensing)

Non-operating

95% RH

Altitude

Operating

10,000 feet max.

Non-operating

50,000 feet max.

Shock

Operational and

30 G 11ms

non-operational

Half sine wave

Vibration

Operational and

(See Note 8)

non-operational

Electrostatic discharge

Indirect air

15 kV

IEC61000-4-2

Indirect contact

8 kV

(See Note 6)

Thermal performance

Operating ambient

0 °C to +60 °C

(See Note 5)

temperature

Non-operating

-40 °C to +100 °C

OUTPUT SPECIFICATIONS

Voltage adjustability

(See VID codes, Table 3)

0.8-1.55 Vdc

Output current

80 A

Voltage setting accuracy

±0.8%

Ripple and noise

20 MHz bandwidth

50 mV pk-pk

(See Notes 1, 2)

Short circuit protection

Continuous current limit,

(See Note 7)

default setting as trip

Remote sensing compensating voltage

Up to 300 mV max.

INPUT SPECIFICATIONS

Input voltage range

12Vin nominal

10.8-13.2 Vdc

Input current

Operation

12.5 A max.

No load

1.1 A max.

Remote OFF

45 mA max.

UVLO

Turn ON voltage

10.5 V typ.

Turn OFF voltage

9.8 V typ.

Hysteresis

0.65 V typ.

Start-up time

Nominal line

10 ms max.

Enable

Logic compatibility

Ref. to -input

ON

>1.7 Vdc

OFF

<0.8 Vdc

+5_ALWAYS

Current demand

250 mA typ.