HA16120 RENESAS [Renesas Technology Corp], HA16120 Datasheet - Page 5

• Manufacturer Part Number: HA16120
• Description: Switching Regulator for Chopper Type DC/DC Converter
• Manufacturer: RENESAS [Renesas Technology Corp]

HA16114P/PJ/FP/FPJ, HA16120FP/FPJ
Timing Waveforms
Rev.2.0, Sep.18.2003, page 5 of 37
Generation of PWM pulse output from sawtooth wave (during steady-state operation)
Dead-band
voltage (at DB)
Sawtooth wave
(at C
Error amplifier
output (at E/O)
HA16114 PWM
pulse output
(drives gate of
P-channel
power MOS FET)
HA16120 PWM
pulse output
(drives gate of
N-channel
power MOS FET)
Note: On duty =
T
)
t
ON
T
V
0 V
V
0 V
IN
IN
Off
Off
On
On
Off
Off
On
On
1.0 V
typ
1.6 V typ
Off
Off
On
On
Off
Off
T =
On
On
f
OSC
1
Off
Off
Time t
On
On