ha16116fpj Renesas Electronics Corporation., ha16116fpj Datasheet - Page 30

• Manufacturer Part Number: ha16116fpj
• Description: Switching Regulator For Chopper Type Dc/dc Converter
• Manufacturer: Renesas Electronics Corporation.

HA16116FP/FPJ, HA16121FP/FPJ
Overall Waveform Timing Diagram (for Application Examples (1))
Rev.2.0, Sep.18.2003, page 30 of 33
V
V
V
V
V
V
V
V
PWM
pulse
DC/DC output
(example for
positive
voltage)
IC operation
states
Note: 1.This PWM pulse is on the step-down/inverting control channel.
IN
TIM
ON/
E/O
CT
DB
CL
OUT
,
,
,
OFF
*1
12 V
0 V
0 V
12 V
11.8 V
0 V
12 V
0 V
The booster control channel output consists of alternating L and H of the IC ÒonÓ cycle.
Power
supply on
2.1 V
3.0
2.0
1.0
0.0
(V)
2.8 V
IC on
V
triangle wave
V
CT
DB
V
E/O
Soft start
V
V
TIM
ON/
,
OFF
On
Pulse-by-pulse
current limiter
operates
Steady-state
operation
2.1 V
1.4 V
Off
Overcurrent
detected;
intermittent
operation
On
Off
On
Off
On
Off
Overcurrent
cleared;
steady-state
operation
Power supply off,
IC off
On
Off
Quick
shut-off