DC-DC CONVERTERS 16-30 W High Efficiency DC-DC Converters

1

2 YEAR WARRANTY

EXB30 Series

Single output

(natural convection)

The EXB30 is a new high efficiency open frame isolated 30 Watt converter series in an

industry standard footprint. The first five models in the series feature a 2:1 input voltage

range of 36 Vdc to 75 Vdc and are available in output voltages of 12 V, 5 V, 3.3 V, 2.5 V

and 2 V. Each model is trimmable from 80% to 110% except the 12 V output which has

a wider trim range of 60% to 110%. The sub 5 V models have an output current rating

of 8 A. Typical efficiencies for the models are 92% for the 5 V, 90% for the 3.3 V and

12 V, 87% for the 2.5 V and 86% for the 2 V version. The EXB30 series offers remote

ON/OFF and remote sense compensation to correct for voltage drops at the load.

Overcurrent, overvoltage and overtemperature protection features are included as

standard. With full international safety approval including EN60950 and cUL1950, the

EXB30 reduces compliance costs and time to market.

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

EMC CHARACTERISTICS

Conducted emissions

EN55022 (See Note 3)

Level A

EN55022 (See Note 3)

Level B

Radiated emissions

EN55022 (See App. Note 108)

Level B

Immunity:

ESD air

EN61000-4-2

8 kV (NP), 15 kV (RP)

ESD contact

EN61000-4-2

6 kV (NP), 8 kV (RP)

Radiated field enclosure

EN61000-4-3

10 V/m (NP)

Conducted (DC power)

EN61000-4-6

10 V (NP)

Conducted (signal)

EN61000-4-6

10 V (NP)

Input transients

ETS 300 132-2, ETR 283

GENERAL SPECIFICATIONS

Efficiency

See table

Basic insulation

Input/output

1500 Vdc

Switching frequency

Fixed

300 kHz typ.

Approvals and

VDE0805, EN60950

standards

IEC950, UL/cUL1950

(See Note 5)

CSA C22.2 No. 950

Material flammability

UL94V-0

Weight

40 g (1.41 oz)

MTBF

MIL-HDBK-217F

>300,000 hours

@ 25 °C, 100% load

ground benign

ENVIRONMENTAL SPECIFICATIONS

Thermal performance

Operating ambient

-40 °C to +85 °C

temperature

Non-operating

-40 °C to +125 °C

ETS 300 019-2-3

Classes T3.1 to T3.5

Altitude

Operating

10,000 feet max.

Non-operating

40,000 feet max.

OUTPUT SPECIFICATIONS

Voltage adjustability

80% to 110%

Set point accuracy

±1.5% max.

Line regulation

Low line to high line

0.1% max.

Load regulation

Full load to min. load

0.2% max.

Total error band

±3.0%

Minimum load

0%

Overshoot

At turn-on and turn-off

None

Undershoot

None

Ripple and noise

5 Hz to 20 MHz

150 mV pk-pk

(See Note 1)

20 mV rms

Temperature coefficient

±0.02%/°C

Transient response

2.0% max. deviation

(See Note 2)

300 µs recovery to

within total error band

Remote sense

10% output voltage change

INPUT SPECIFICATIONS

Input voltage range

48 Vin nominal

36-75 Vdc

Input current

No load

50 mA max.

Remote OFF

10 mA max.

Input current (max.)

48 V models

1.0 A max. @ Io max.

(See Note 4)

and Vin = 36-75 Vdc

Input reflected ripple

(See Note 6)

30 mA (pk-pk) typ.

Active high remote ON/OFF

Logic compatibility

Open collector ref to -input

ON

Open circuit or >2 Vdc

OFF

<1.2 Vdc

Undervoltage lockout

48 Vin: power up

34 V

48 Vin: power down

31.5 V

Start-up time

Power up

30 ms

(See Note 7)

Remote ON/OFF

30 ms

SPECIFICATIONS

File Name: exb30s.pdf Rev: 05 Dec 2005