TK11213B Ver la hoja de datos (PDF) - Toko America Inc
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TK11213B Datasheet PDF : 24 Pages
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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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