MOSFET Drive Switching Regulator IC for Boost / Fly-back Converter
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 for boost/fly-back application such as Car Accessory, Office Automation Equipment, Industrial Instrument and so on.
Consumer Automotive Input Voltage Range 3 V to 40 V (45 V) Operating Temperature Range -40°C to 85°C -40°C to 125°C Supply Current Typ. 1400 µA Max. 2000 µA Standby Current 2.5 µA 12 (max.) µA Output Voltage Range 3 V to - V Output Voltage Accuracy ± 1 % ± 2 % Oscillator Frequency 40kHz to 1MHz Package DMP8
MSOP8(VSP8) Control PWM Control Function Standby Function
Over Current Protection
Note UVLO (Under Voltage Lockout)
Protections / Functions
TSD ILX OCP OVP UVLO OVLO Reverse Shutdown Soft Start SSCG PGOOD Auto Discharge Anti-ringing Sequencing Max Duty Ext. Phase LED Adjust
SPICE model download
You can download the product's SPICE model. Login/registration to myNISD is required to download.
- Refer to the datasheets for the details on the product.
- The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
Sample / Buy
Buy, Request for Samples, Request for Information Materials
Please contact your local distributors for any sales-related inquiry such as price, stock, delivery, etc.
|Thermal Shutdown Function
|LX Current Limit Function
|Undervoltage Lockout Protection
|Overvoltage Lockout Protection
|Reverse Current Protection Circuit
|Soft Start Function
|Spread Spectrum Clock Generator Function
|Power Good Output
|Auto Discharge Function
|Anti-ringing Switch Function
|Start-up Sequencing Control
|Maximum Duty Cycle
|Externally Adjustable Phase Compensation
|LED High-speed Dimming Control