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Part Name
Description
HA16114 View Datasheet(PDF) - Hitachi -> Renesas Electronics
Part Name
Description
Manufacturer
HA16114
Switching Regulator for Chopper Type DC/DC Converter
Hitachi -> Renesas Electronics
HA16114 Datasheet PDF : 34 Pages
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HA16116FP/FPJ, HA16121FP/FPJ
Function and Timing Chart
Relation between triangle wave and PWM output (in steady-state operation)
C
T
triangle wave
Dead band
voltage
E/O Error amp output
1.6 V typ
1.0 V typ
PWM
pulse
output
Booster
channel
output
(HA16121-
Ch 2) only
Step-down
or inverting
output
(HA16116-
Ch 1, Ch 2/
HA16121-Ch 1)
t
ON
t
OFF
T
V
IN
(on)
GND (off)
This pulse
is for
N-channel
power MOS
FET gate
driving.
V
IN
(off)
GND (on)
This pulse
is for
P-channel
power MOS
FET gate
driving.
Note: On duty = t
ON
/T, where T = 1/f
OSC
.
6
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