EXA40-48S3V3J datasheet, PDF - EEWORLD Datasheet

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EXA40-48S3V3J: Description40 W High Efficiency DC-DC Converters; File Size131KB，3 Pages; ManufacturerEmerson

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EXA40-48S3V3J Overview

40 W High Efficiency DC-DC Converters

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EXA40 Series

DC-DC CONVERTERS

Single output

40 W High Efficiency DC-DC Converters

•

High efficiency topology, 91% typical at 5 V

•

Approved to EN60950, UL1950, CSA C22.2 No. 950

•

Operating ambient temperature of -40 °C to +70 °C

(natural convection)

•

Complies with ETS 300 019-1-3/2-3

•

Complies with ETS 300 132-2 input voltage and current

requirements

•

Fully compliant with ETS 300 386-1

•

RoHS Compliant

The EXA40 Series, comprising 8 different models is targeted specifically at the

telecommunications, industrial electronics, mobile Telecommunications and distributed

power markets. The series offers two wide input voltage ranges of 18 Vdc to 36 Vdc and

36 Vdc to 75 Vdc. Typical efficiencies are 91% for the 5 V output, 88% for the 3.3 V, 86%

for the 2.75 V and 84% for the 1.8 V. The series has been designed primarily for

Telecommunications applications and complies with ETS 300 386-1 immunity and emission

standards for high priority of service class. In addition the series complies with ETS 300

019-1-3 environmental standards (all classes) including shock, vibration, humidity and

thermal performance. A high level of reliability has been designed into all models through

the extensive use of conservative derating criteria. Remote enable and overtemperature

shutdown are included as standard while true latching OVP is available as an option.

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

2 YEAR WARRANTY

SPECIFICATIONS

OUTPUT SPECIFICATIONS

Voltage adjustability

(See Note 10)

Voltage accuracy

Line regulation

Load regulation

Minimum load

Ripple and noise

20 MHz bandwidth

Temperature coefficient

Transient response

Peak dev. settling time

Short circuit protection

(See Note 5)

INPUT SPECIFICATIONS

Input voltage range

Input current

UVLO turn ON voltage

UVLO turn OFF voltage

Start-up time

24 Vin nominal

48 Vin nominal

No load

Remote OFF

All inputs (See Note 4)

Nominal line

18-36 Vdc

36-75 Vdc

100 mA max.

4 mA max.

94%

86%

50 ms

Open Collector

ref. to -input

4.5 Vdc

<1.0 Vdc

50% to 75% and back

to 1.0%, no external cap.

Low line to high line

Full load to no load

2.75 V, 3.3 V, 5 V

1.8 V output

±10% min.

+12/-17% min.

±1.0%

+0.05%

+0.20%

100 mV pk-pk max.

20 mV rms max.

±0.01%/°C

100 mV

250 µs

EMC CHARACTERISTICS (Cont.)

Radiated emissions

ESD air

ESD contact

Surge (500 V)

Fast transients

Radiated immunity

Conducted immunity

EN55022 (See Design Note 102) Level B

EN61000-4-2, level 3

EN61000-4-2, level 4

EN61000-4-5, level 3, 4

EN61000-4-4, level 3, 4

EN61000-4-3, level 3

EN61000-4-6, level 3

GENERAL SPECIFICATIONS

Efficiency

Basic insulation

Input fuse 24 V

Input fuse 48 V

Switching frequency

Approvals and

standards

(See Notes 7, 8, 9)

Weight

MTBF

(See Design Note 102)

Input/output

(See Note 8)

Fixed

See table

1500 Vdc

3.5 A slow blow

2.0 A slow blow

300 kHz

EN60950

UL1950

CSA C22.2 No. 950

25 g (0.88 oz)

250,000 hours

Continuous

automatic recovery

MIL-HDBK-217

ENVIRONMENTAL SPECIFICATIONS

Thermal performance

Operating ambient

temperature

Non-operating

Loss of Function

Self-Recovery (LFS)

-40 °C to +70 °C,

See curves

-55 °C to +105 °C

75 °C to +85 °C

Over temperature

shutdown

ETS 300 019-2-3

Air temperature

Active high remote ON/OFF

Logic compatibility

OFF

INPUT SPECIFICATIONS

ETS 300 386-1 table 5

Conducted emissions

(See Design Note 102)

Open circuit voltage

Relative humidity

Vibration, Class 3M5

EN55022, internal filter and

two 4 µF film capacitors

EN55022, external filter

Level A

Level B

Shock, Class 3M5

Classes T3.1 to T3.5

Low: IEC 68-2-1

-40 °C

High: IEC 68-2-2

+70 °C

Change: IEC 68-2-1

-40 °C to +70 °C

IEC 68-2-56

10% to 100% RH

IEC 68-2-30

Condensation

IEC68-2-6

2-9 Hz, 3 mm disp.

9-200 Hz 1 g

MIL-STD-202F

Method 204 cond. A

IEC-68-2-29

MIL-STD-202F

Method 213B cond. A

File Name: exa40.pdf Rev (02): 09 Dec 2005

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