NJW4800
ꢀPIN DESCRIPTION
PIN
NUMBER
PIN NAME
FUNCTION
PWM Signal Input Terminal
As for Control Logic, Refer to PIN OPERATION TABLE (page.5)
Power Supply Terminal
You should connect capacitor (AL and MLCC) for reducing Input Impedance.
Output Terminal
1
PWM
VDD
2
3
4
5
OUT
GND
BS
The High-side/Low-side Switch are Limited to 5.5A(typ.) by Over Current
Protection Circuit.
Ground Terminal
Boot Strap Output Terminal
Boot Strap Output drives the High-side Switch. You should connect capacitor
larger than 0.1µF between BS Terminal (5-pin) and Out Terminal (3-pin).
Standby Terminal
6
7
STBY
REG
NJW4800 becomes standby status by High Level
NJW4800 operates by Low Level
Built-in Regulator (5V) Output Terminal
You should connect capacitor larger than 1µF for stable output.
Fault Signal Output Terminal
It is Open Drain Output Type. You should connect through Pull-up Resister to
REG Terminal (7-pin) or External Power Supply.
It outputs Low Level under normal operating condition and outputs High Level
under Abnormal Conditions.
8
–
FLT
Exposed
PAD
Connected to 4pin (Ground Terminal)
Ver.2010-09-29
- 11 -
NJRC [ NEW JAPAN RADIO ]
