HA16116 查看數據表（PDF） - Hitachi -> Renesas Electronics

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HA16116

Switching Regulator for Chopper Type DC/DC Converter

Hitachi -> Renesas Electronics 

HA16116FP/FPJ, HA16121FP/FPJ

V

(voltage)

Triangle wave

VTH

VSST

VTL

Starts from clamp

voltage of 0.8 V

t 0.8

PWM output

pulse starts to

widen

tA

tB

Steady-state

operation

PWM pulse

output

Booster

channel

Step-down/

inverting

channel

DC/DC converter output

(positive in this example)

t = 0 (here IC is on)

t = tSST

Figure 3.2 Soft Start (SST) Setting

1.6 V

1.0 V

0V

VIN

0V

VIN

0V

VO

0V

12

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