HA16120FP HITACHI [Hitachi Semiconductor], HA16120FP Datasheet - Page 3

• Manufacturer Part Number: HA16120FP
• Description: Switching Regulator for Chopper Type DC/DC Converter
• Manufacturer: HITACHI [Hitachi Semiconductor]

Pin Arrangement
Pin Description
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Note: 1. Pin 1 (GND) and Pin 8 (P.GND) must be connected each other with external wire.
Symbol
GND
SYNC
R
C
IN(–)
E/O
IN(+)
P.GND
OUT
V
CL(–)
TM
ON/OFF
DB
ADJ
Vref
IN
T
T
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
P.GND*
GND*
SYNC
IN( )
IN(+)
E/O
R
C
T
T
1
1
1
2
3
4
5
6
7
8
(Top view)
HA16114P/PJ/FP/FPJ, HA16120FP/FPJ
16
15
14
13
12
10
11
9
Vref
ADJ
DB
ON/OFF
TM
CL( )
V
OUT
IN
3