Recherchez avec le numéro de pièce ainsi que le fabricant ou la description
The NJW4140 is a MOSFET Drive switching regulator IC for Boost / Fly-back Converter that operates wide input range from 3V to 40V. It can provide large current application because of built-in highly effective Nch MOSFET drive circuit. Built-in pulse-by-pulse current detecting type over current protection limits the output current at over load. It is suitable.
Nch MOSFET Driving Wide Operating Voltage Range PWM Control Wide Oscillating Frequency Over Current Protection UVLO (Under Voltage Lockout) Standby Function Package Outline
Driving Voltage 5.3V (typ.) 3V to 40V 40kHz to 1MHz
NJW4140R : MSOP8(VSP8)
* NJW4140M : DMP8
*MEET JEDEC MO-187-DA
Ver.2020-01-31
-1-
NJW4140
PIN CONFIGURATION
1 2 3 4
NJW4140R NJW4140M
8 7 6 5
PIN FUNCTION 1. V+ 2. EN 3. IN4. FB 5. CT 6. GND 7. SI 8. OUT
BLOCK DIAGRAM
V+
EN High: ON Low : OFF
(Standby)
500k
Soft Start
Enable Control
ON/OFF
Low Frequency Control
OSC
Vref 0.8V Error AMP
PWM Comparator
Pulse.
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|---|---|---|---|---|
| 1 | NJW4141 |
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