DC/DC CONVERTERS

54-100W DC/DC Isolated Converters

1

2 YEAR WARRANTY

EXB100 Series

Single output

The EXB100 series of 100W single output isolated DC/DC converters are specially

designed to meet the power needs of low voltage silicon. Housed in an open-frame

package with standard footprint, these latest generation converters offer efficiencies as

high as 91.5% (typical on 5V at 20A). The series comprises three 48V input models with

5V, 3.3V and 1.8V outputs. All models feature a wide input range, trimmable output

voltage and 30A output (5V is limited to 20A). Remote sense and remote ON/OFF

facilities are included as standard, and the converters are comprehensively protected

against over-current, over-voltage and over-temperature conditions.

NEW Product

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

SPECIFICATIONS

File Name: EXB100S.PDF Rev: 29 March 2002

OUTPUT SPECIFICATIONS

Voltage adjustability

60% to 110%

Output setpoint accuracy

1.5%

Line regulation

Low line to high line

±0.2% max.

Load regulation

Full load to min. load

±0.4% max.

Total error band

3.0%

Minimum load

0%

Overshoot

At turn-on and turn-off

None

Undershoot

None

Ripple and noise

(See Note 1)

100mV pk-pk

5Hz to 20MHz

50mV rms

Transient response

Deviation

150mV

(See Note 2)

300µs recovery to

within total error band

INPUT SPECIFICATIONS

Input voltage range

36 to 75VDC

Input current

No load

150mA

Remote OFF

20mA

Input current (max.)

(See Note 3)

3.15A max. @ Io max.

and Vin = 36 to 75V

Input reflected ripple

(See Note 4)

60mA (pk-pk)

Remote ON/OFF

(See Note 5)

Logic compatibility

Open collector ref to -input

ON

>2VDC

OFF

<1.2VDC

Under-voltage lockout

Power up

36V

Power down

30V

Start-up time

Power up

40ms

(See Note 6)

Remote ON/OFF

35ms

EMC CHARACTERISTICS

Conducted emissions

EN55022 (See Note 7)

Level A

EN55022 (See Note 7)

Level B

Radiated emissions

EN55022

Level A

(See Long Form Data Sheet)

Immunity:

ESD air

EN61000-4-2 8kV, 15kV

ESD contact

EN61000-4-2 6kV, 8kV

Radiated field enclosure

EN61000-4-3 10V/m

Conducted (DC power)

EN61000-4-6 10V

Conducted (signal)

EN61000-4-6 10V

(See Note 5)

Input transients

ETS 300 132-2, ETR 283

GENERAL SPECIFICATIONS

Efficiency

See table

Basic insulation

Input/output

1500VDC

Switching frequency

5V

300kHz typ.

(Fixed)

3.3V, 1.8V

220kHz typ.

Approvals and

TÜV Product Service

standards (See Note 8)

UL/cUL60950

Material flammability

UL94V-0

Weight

45g (1.59oz)

MTBF

MIL-HDBK-217F

115,000 hours

Representative model:

1V8 @ 48Vin, 40ºC

100% load, ground benign

BELLCORE 332

591,000 hours

ENVIRONMENTAL SPECIFICATIONS

Thermal performance

Operating ambient.

-40°C to +90°C

temperature

Non-operating

-40°C to +125°C

Altitude derating

3,000m

20%

(above sea level)

10,000m

50%

TÜV