Datasheet > 20IMX4-03-8-G

20IMX4-03-8-G

更新时间： 2023-01-02 14:21:13

品牌	Logo	应用领域
BEL		输出元件
页数	文件大小	规格书
12页	644K
描述
1-OUTPUT 3W DC-DC REG PWR SUPPLY MODULE, 8.5 MM, DIP-24

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20IMX4-03-8-G 数据手册

IMX4 Series Data Sheet

4 Watt DC-DC Converters

Electrical Input Data

General conditions: T_A= 25 °C, unless T_Cis specified.

Table 2: Input Data

Input

5IMX4

20IMX4

40IMX4

70IMX4

Unit

Characteristics

Conditions

min typ max min typ max min typ max min typ max

V_i

Input voltage range

T_{C min}to T_{C max}

I_o= 0 to I_{o nom}

4.7 5.0 16.8 8.4

36 16.8 ²

75 40

100

121

150

VDC

V_{i nom}Nominal input voltage

5.0

V_{i sur}Repetitive surge voltage abs. max input (3 s)

t_start-upConverter start-uptime¹Worst case condition at

V_{i min}and full load

0.25 0.5

t_rise

Rise time ¹

V_{i nom}

I_{o nom}

resistive load

capacitive load

I_{i o}

C_i

No-load input current

Input capacitance

I_o= 0, V_{i min}to V_{i max}

15 20

0.54

3.7

µF

0.3

4.2

400

0.15

5.6

I_{inr p}

f_s

Inrush peak current

Switching frequency

V_i= V_{i nom}

3.8

400

V_{i min}to V_{i max}, I_o= 0 to I_{o nom}

400

100

400

kHz

mA_pp

Class

I_{i rr}

Reflected ripple current I_o= 0 to I_{o nom}

v_{i RFI}Input RFI level

EN 55011/55022 ⁴

conducted

Measured with a resistive or max. admissible capacitive load; see fig. 5

Operation at lower input voltage possible: P_oapprox. 80% of P_{o nom}at V_{i min}= 14.4 V

Source impedance according to ETS 300132-2, version 4.3.

External capacitors required according to table 3.

Start-up

Filter to Comply with EN 55011/55022

V_o

V_{o nom}

t_rise

04008b

Electromagnetic emission requirements according to table

Electrical Input Data can be achieved by adding an external

capacitor as close as possible to the input terminals (see fig. 7

and table 3).

04035b

t_startup

Vi+

Fig. 5

Converter start-up and rise time

C_i

Inrush Current

Vi–

Fig. 7

The inrush current has been kept as low as possible by

choosing a very small input capacitance. A series resistor may

be inserted in the input line to further limit this current.

Input capacitors

04034a

Table 3: Input electrolytic capacitors

Model

20IMX4

40IMX4

70IMX4

C_i

100 µF

50 V

47 µF

100 V

330 µF

200 V

µs

Fig. 6

Typ. inrush current at V_{i nom}, P_{o nom}versus time measured

according to ETS 300132-2, version 4.3 (40IMX4).

BCD20006-G Rev AC, 06-Jul-2012

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