FA7610CP(N)/12CP(N)/17CP(N)
s
Description
The FA7610CP(N), 7612CP(N) and 7617CP(N) are bipolar
ICs containing basic circuits necessary for PWM-type
switching power supply control.
To minimize the number of external discrete components, the
FA7610CP(N) is provided for a flyback or step-up power-
supply circuit, the FA7612CP(N) for a step-down power-supply
circuit and FA7617CP(N) for a flyback power supply circuit.
Bipolar IC
For Switching Power Supply Control
FA7610CP(N)/FA7612CP(N)/FA7617CP(N)
s
Dimensions, mm
SOP-8
8
5
s
Features
FA7610CP(N)
鈥?For flyback transformer-type or step-up power-supply circuit
(maximum output duty = 64% typical)
鈥?Totem-pole predriver
鈥?PWM-type switching power supply control
鈥?Low-voltage operation (V
CC
= 3.6 to 22V)
鈥?Latch-mode short-circuit protection function (no malfunction
by noise)
鈥?Soft-start function
鈥?Undervoltage lockout function
鈥?One capacitor shared for short circuit protection and for soft-
start to minimize the number of external discrete components
FA7612CP(N)
鈥?For step-down power-supply circuit
(maximum output duty = up to 100%)
鈥?Open collector output
鈥?PWM-type switching power supply control
鈥?Low-voltage operation (V
CC
= 3.6 to 22V)
鈥?Latch-mode short-circuit protection function (no malfunction
by noise)
鈥?Soft-start function
鈥?Undervoltage lockout function
鈥?One capacitor shared for short circuit protection and for soft-
start to minimize the number of external discrete components
FA7617CP(N)
鈥?For flyback transformer-type power-supply circuit (maximum
output duty = 67% typical)
鈥?Open collector output
鈥?PWM-type switching power supply control
鈥?Low-voltage operation (V
CC
= 3.6 to 22V)
鈥?Latch-mode short-circuit protection function (no malfunction
by noise)
鈥?Soft-start function
鈥?Undervoltage lockout function
鈥?One capacitor shared for short circuit protection and for soft-
start to minimize the number of external discrete components
1
4.9
4
+0.1
鈥?.05
6.0
鹵0.2
3.9
0.4
鹵0.1
1.27
鹵0.2
DIP-8
8
5
1
9.3
1.5
4
6.5
3.0min 4.5max
3.4
0~8
擄
0.3
7.6
+0.1 5
鈥?.0
2.54
鹵0.25
0.5
鹵0.1
0~15
藲
0~1
5藲
s
Applications
鈥?Battery power supply for portable equipment
1.7max
0.20
1
1
2
3
4
5
6
7
