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| HA16654A Datasheet, PDF (3/15 Pages) Hitachi Semiconductor – PWM Controlled Switching Regulator | |||
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Block Diagram
HA16654A, HA16664A Series
RT 2
CT 1
Vref 3
VIN 4
To under
voltage
lockout
Oscillator
DB
7
EI
8
To Vref
PWM
Compa-
rator
To internal
circuitry
Reference
Regulator
Under Voltage
Lockout
(Hysteresis Type)
VIN
5 OUT
6 GND
Output Stage
ERROR
INPUT
DB
CT
OUT
Figure 1 Waveform Timing
3
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