NJW4142 Series
MOSFET Drive Switching Regulator IC for Boost / Fly-back Converter
NJW4142 Series
MOSFET Drive Switching Regulator IC for Boost / Fly-back Converter
Download Datasheet
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Description
The NJW4142 is a MOSFET drive switching regulator IC for boost / fly-back converters that operates wide operating voltage range from 2.5V to 40V. The internal Nch MOSFET driver circuit provides high efficiency driving, makes this device ideal for high output current applications. The protection function is equipped pulse-by-pulse overcurrent detection to limits the switching current at overload. The NJW4142 is suitable for boost / fly-back applications such as industrial instruments and so on.
Applications
- Consumer Electronics
- Industrial Instruments
- Boost Converter for Small to Middle Range Power Supplies
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Spec
Consumer Automotive Input Voltage Range 2.5 V to 40 V (45 V) Operating Temperature Range -40°C to 125°C Supply Current Typ. 900 µA Max. 1700 µA Standby Current 10 µA 20 (max.) µA Output Voltage Range 2.5 V to - V Output Voltage Accuracy ± 1 % ± 2 % Oscillator Frequency 50kHz to 1MHz Package MSOP10(VSP10) Control Current Mode Control / PWM Control Function Standby Function
Soft Start (Fixed 20ms typ.)
Over Current Protection (Hiccup)
Over Voltage Protection
Thermal ShutdownNote UVLO (Undervoltage Lockout)
Adjustable Startup Voltage
External Clock SynchronizationProtections / Functions
TSD ILX OCP OVP UVLO OVLO Reverse Shutdown Soft Start SSCG PGOOD Auto Discharge Anti-ringing Sequencing Max Duty Ext. Phase LED Adjust 
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Technical
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Quality &
PackagesProduct Name Compatibility Package Marking Reliability NJW4142R MSOP10(VSP10) - - NJW4142R-T1 MSOP10(VSP10) - - - Refer to the datasheets for the details on the product.
- The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
- Please contact us or our distributors for unpublished reliability information.
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Sample / Buy
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Buy Online
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Buy, Request for Samples, Request for Information Materials
Authorized Distributors
Please contact your local distributors for any sales-related inquiry such as price, stock, delivery, etc.
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Download Datasheet
Functional Description
| TSD | Thermal Shutdown Function |
|---|---|
| ILX | LX Current Limit Function |
| OCP | Overcurrent Protection |
| OVP | Overvoltage Protection |
| UVLO | Undervoltage Lockout Protection |
| OVLO | Overvoltage Lockout Protection |
| Reverse | Reverse Current Protection Circuit |
| Shutdown | Shutdown Function |
| Soft Start | Soft Start Function |
| SSCG | Spread Spectrum Clock Generator Function |
| PGOOD | Power Good Output |
| Auto Discharge | Auto Discharge Function |
| Anti-ringing | Anti-ringing Switch Function |
| Sequencing | Start-up Sequencing Control |
| Max Duty | Maximum Duty Cycle |
| Ext. Phase | Externally Adjustable Phase Compensation |
| LED Adjust | LED High-speed Dimming Control |