HA16114P Datasheet, PDF (5/38 Pages) Hitachi Semiconductor – Switching Regulator for Chopper Type DC/DC Converter

Timing Waveforms
HA16114P/PJ/FP/FPJ, HA16120FP/FPJ
Generation of PWM pulse output from sawtooth wave (during steady-state operation)
Dead-band
voltage (at DB)
1.6 V typ
T=
1
f_OSC
Sawtooth wave
(at C_T)
Error amplifier
output (at E/O)
1.0 V
typ
HA16114 PWM ^VIN
pulse output
(drives gate of
P-channel
power MOS FET) 0 V
Off
Off
On
Off
On
Off
Off
On
On
On
HA16120 PWM ^VIN
pulse output
(drives gate of
N-channel
power MOS FET) _{0 V}
Note: On duty = ^tON
T
On
Off
Off
On
Off
On
On
On
Off
Off
Time t
5