RBO40(2003) 查看數據表（PDF） - STMicroelectronics

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RBO40
(Rev.:2003)

REVERSED BATTERY AND OVERVOLTAGE PROTECTION

STMicroelectronics 

RBO40-40G / RBO40-40T

LOAD DUMP TEST GENERATOR CIRCUIT (SCHAFFNER NSG 506 C). Issued from ISO / DTR 7637.

U(V)

Vbat

0

Open circuit (voltage curve)

(pulse test n°5)

t

tr

90%

Vs

10%

offset

10% / 13.5V

t

Corresponding current wave with D.U.T.

I

Ipp

Ipp/2

0

tp = 40ms

t

Impulse

Vs (V)

Vbat (V)

Ri (Ω)

t (ms)

tr (ms)

Number

60s between each pulse

(*) Generator setting

N°5

66.5

13.5

2

200 (*)

<10

5

CALIBRATION METHOD FOR SCHAFFNER NSG 506 C

1) With open circuit (generator is in open circuit):

- calibrate Vs

2) With short circuit (generator is in short circuit):

- calibrate Ri (Ri = 2Ω)

3) With D.U.T.

- calibrate tp (tp = 40ms @ Ipp/2)

Typical Voltage curve (open circuit)

Typical Voltage and Current curve with D.U.T.

typ. Vpp

typ. VCL

VBat

6/10

Ipp

20ms/div.

10.0V/div.

20ms/div.

5.0V/div.

20ms/div.

3A/div.

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