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| HA16114P Datasheet, PDF (3/38 Pages) Hitachi Semiconductor – Switching Regulator for Chopper Type DC/DC Converter | |||
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Pin Arrangement
HA16114P/PJ/FP/FPJ, HA16120FP/FPJ
GND*1 1
16 Vref
SYNC 2
15 ADJ
RT 3
CT 4
IN(â) 5
E/O 6
14 DB
13 ON/OFF
12 TM
11 CL(â)
IN(+) 7
P.GND*1 8
10 VIN
9 OUT
(Top view)
Note: 1. Pin 1 (GND) and Pin 8 (P.GND) must be connected each other with external wire.
Pin Description
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
Symbol
GND
SYNC
RT
CT
IN(â)
E/O
IN(+)
P.GND
OUT
VIN
CL(â)
TM
13
ON/OFF
14
DB
15
ADJ
16
Vref
Function
Signal ground
External sync signal input (synchronized with falling edge)
Oscillator timing resistor connection (bias current control)
Oscillator timing capacitor connection (sawtooth voltage output)
Inverting input to error amplifier
Error amplifier output
Non-inverting input to error amplifier
Power ground
Output (pulse output to gate of power MOS FET)
Power supply input
Inverting input to current limiter
Timer setting for intermittent shutdown when overcurrent is detected (sinks
timer transistor current)
IC on/off control (off below approximately 0.7 V)
Dead-band duty cycle control input
Reference voltage (Vref) adjustment input
2.5 V reference voltage output
3
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