Datasheet > CXA20

CXA20

更新时间： 2024-09-29 06:51:27

品牌	Logo	应用领域
艾默生 - EMERSON-NETWORKPOWER		转换器
页数	文件大小	规格书
3页	127K
描述
20 W DC-DC Converters

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CXA20 数据手册

CXA20 Series

S i n g l e a n d d u a l o u t p u t

• 4:1 input voltage range

• No minimum load on singles

• 6 A on 3.3 V output (@ 48 Vin) at 50 ˚C in still air

• Wide operating temperature with overtemperature

protection

• 10ꢀ output voltage trim

• Remote On/Off control

• Overvoltage protection

• Available RoHS complaint

The CXA20 is a new 20 W addition to the CXA family of open-frame, isolated, dc-dc

converters. The five model series features a 4:1 input voltage range of 18 Vdc to

75 Vdc, making it suitable for a wide variety of communications and distributed

power applications. With its 2.0 x 1.6 inch industry standard footprint, the CXA20

provides an easy upgrade option for new and existing Artesyn customers seeking a

high-performance, cost-effective power supply. The CXA20 is available in output

voltages of 3.3 V, 5 V, 12 V, 5 V and 12 V. The 3.3 V version delivering up to 6 A is

fully rated to 20 W. Typical efficiency for the CXA20 is 83%. The CXA20 offers remote

ON/OFF as well as overvoltage, overtemperature and short circuit protection

features.

2 YEAR WARRANTY

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

SPECIFICATIONS

OUTPUT SPECIFICATIONS

EMC CHARACTERISTICS

ETS 300 386-1 table 5

Conducted emissions

Voltage accuracy

1.0%

EN55022, ext. cap. (Note 5)

Level A

Level B

EN55022, external filter,

VDE0878, 48V models

Line regulation

(LL to HL)

Singles/dual positives

0.1%

Dual negatives

Radiated emissions

Immunity:

EN55022-B

See App. Note 107

Load regulation

(not incl. cross reg.)

Full load to minimum load

S3V3

Singles/dual positives

Dual negatives

0.2%

0.1%

ESD air

EN61000-4-2 8 kV (NP), 15 kV (RP)

EN61000-4-2 6 kV (NP), 8 kV (RP)

EN61000-4-4 2 kV (NP), 4 kV (LFS)

EN61000-4-4 1 kV (NP), 2 kV (LFS)

ESD contact

EFT DC power

EFT signal

Minimum load

Singles

Duals (for imbalanced loads)

None

10%

Radiated field enclosure EN61000-4-3 10 V/m (NP)

Surges indoor signal

Conducted (dc power)

Conducted (signal)

Input transients

EN61000-4-5 500 V (RP)

EN61000-4-6 10 V (NP)

ETS 300 132-2, ETR 283

Ripple and noise

20 MHz bandwidth

S3V3, S05, D05

S12, D12

All models

75 mV pk-pk max.

100 mV pk-pk max.

20 mV rms max.

GENERAL SPECIFICATIONS

Temperature coefficient

Overvoltage protection

0.02%/°C

Efficiency

See table

120 ˚C

See Application Note 107

Overtemp. shutdown

Short circuit protection

Short <20 mΩ

Hiccup

Continuous

automatic recovery

Isolation voltage

Input/output test voltage

Fixed

1500 Vdc

400 kHz

Switching frequency

Transient response

25% load step

2.0% max. dev.,

300 µs recovery to

Approvals and standards

(See Notes 6,7,8)

EN60950

UL1950 File No. E136005

within total error band

Material flammability

Weight

UL94V-0

Load cross regulation

(See Note 1)

10% load to full load,

either output

7.0%

26 g (0.92 oz)

MTBF

(Representative model

48S05J @ 48 Vin)

MIL-HDBK-217F

Parts stress method

Ground Benign @ 25 °C

3,485,000 hours

INPUT SPECIFICATIONS

Input voltage range

Input fuse

48 Vin nominal

18-75 Vdc

2.0 A

ENVIRONMENTAL SPECIFICATIONS

HRC recommended

48 V ETS300-132

Thermal performance

Operating ambient

-40 °C to +60 °C,

(See Note 9)

-55 °C to +125 °C

temperature

Max. input rise

and fall time

5 V/ms

Non-operating

ETS 300 019-2-3

Air temperature

Classes T3.1, 3.2, 3.3, 3.5

UVLO turn ON voltage

UVLO turn OFF voltage (See Note 4)

(See Note 4)

92%

86%

Low: IEC 68-2-1

High: IEC 68-2-2

-40 °C

+60 °C

Change: IEC 68-2-14 -40 °C to +60 °C

Remote ON/OFF

Logic compatibility

CMOS/TTL/Open Collector

Open circuit or >2 Vdc

<1.2 Vdc

Relative humidity

IEC 68-2-56

IEC 68-2-30

10% to 100% RH

Condensation

OFF

File Name: cxa20.pdf Rev (02): 09 Dec 2005

12 3

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