HA16108FP HITACHI [Hitachi Semiconductor], HA16108FP Datasheet - Page 9

• Manufacturer Part Number: HA16108FP
• Description: PWM Switching Regulator for High-performance Voltage Mode Control
• Manufacturer: HITACHI [Hitachi Semiconductor]

Note: The soft-start time constant is determined by
Timing waveforms
V
V
V
(PWM pulse)
Vref
V
CT
E/O
OUT
IN
, V
ST
,
16.2 V
6.45 V
9.5 V
5 V
4 V
0 V
C
ST
0 V
0 V
V
IN
Vref
ST
4.2 V
3.8 V
2.2 V
10
9
3.8 V
Zener
diode
Level determined by transformer
10 A
Soft start
V
C
ST
V
Vref
ST
IN
Vref
and the constant-current value (typically 10 A).
15
HA16107P/FP, HA16108P/FP
E/O
+
+
V
V
CT
E/O
from Vref
from UVL2
Normal operation
(Effective for
quick shutdown)
PWM comparator
7
V
CT
(Time t)
C
Quick shutdown
ST
ST
discharge
9