TK11213B 데이터 시트보기 (PDF) - Toko America Inc

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TK11213B

VOLTAGE REGULATOR WITH ON/OFF SWITCH

Toko America Inc  

TK112xxB

DEFINITION AND EXPLANATION OF TECHNICAL TERMS (CONT.)

Reverse Voltage Protection

Reverse voltage protection prevents damage due to the

output voltage being higher than the input voltage. This

fault condition can occur when the output capacitor remains

charged and the input is reduced to zero, or when an

external voltage higher than the input voltage is applied to

the output side.

If the control function is not used, connect the control

terminal to VIN. When the control function is used, the

control current can be reduced by inserting a series

resistor (RCONT) between the control terminal and VIN. The

value of this resistor should be determined from the graph

below.

CONTROL FUNCTION

VIN

SW

CONTROL PIN CURRENT VS.

VOLTAGE

50

40 VOUT

30

RC

CN

SOT-23L

20

RCONT = 0

10

0

0

1

RCONT =100K

2

3

4

5

VCONT (V)

VIN

SW

RC

CN

SOT-89

Page 14

October 1999 TOKO, Inc.

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