BD7690FJ
Operation mode of the protective circuit
It shows the operation mode of each protection function in Table 2.
Parameter
VCCUVLO
VS short protection
Contents
Table 2. Operation mode of each protective circuit
Protection mode
Detection method
Detect operation
Cancellation
method
VCC pin low voltage
protection
VCC<9.0V(typ.)
(VCC drop)
OUT stop
EO discharge
VCC>13.0V(typ.)
(VCC rise)
VS pin short protection
VS<0.30V(typ.)
(VS drop)
OUT stop
VS>0.30V(typ.)
(VS rise)
VS gain increase
VS pin low voltage gain
increase
VS<2.25V(typ.)
(VS drop)
GM amplifier GAIN
increase
VS>2.25V(typ.)
(VS rise)
VS Dynamic OVP
VS Static OVP
VS pin overvoltage
protection 1
VS pin overvoltage
protection 2
VS>2.625V(typ.)
(VS rise)
VS>2.700V(typ.)
(VS rise)
GM amplifier GAIN
increase
OUT stop
VS<2.625V(typ.)
(VS drop)
VS<2.600V(typ.)
(VS drop)
Cancellation
operation
Startup operation
Normal operation
Normal operation
Normal operation
Normal operation
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27. Mar. 2017 Rev.002