NJW4140 Series
MOSFET Drive Switching Regulator IC for Boost / Fly-back Converter
NJW4140 Series
MOSFET Drive Switching Regulator IC for Boost / Fly-back Converter
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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 for boost/fly-back application such as Car Accessory, Office Automation Equipment, Industrial Instrument and so on.
Applications
- Automotive ECU
- Industrial control equipment
Spec
| Standard | 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) |
MSOP8(VSP8) |
| Control | PWM Control | |
| Function | Standby Function Over Current Protection |
|
| Note | UVLO (Under Voltage Lockout) | |
| AEC-Q100 | AEC-Q100 Grade 1 | |
Protections / Functions
| TSD | 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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Functional Description
| TSD | Thermal Shutdown Function |
|---|---|
| OCP | Overcurrent Protection Note: The function previously labeled as "ILX (LX Current Limit Function)" is now shown as "OCP." |
| 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 |
Technical Documents
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SPICE model download
You can download the product's SPICE model. Login/registration to myNISD is required to download.
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Related Links
Quality & Packages
| Product Name | Compatibility | Package | Marking | Reliability |
|---|---|---|---|---|
| NJW4140M |
|
DMP8 | - | NJW-1-s-fr |
| NJW4140R |
|
MSOP8(VSP8) | - | NJW-1-s-fr |
| NJW4140R-T1 |
|
MSOP8(VSP8) | - | NJW-1-s-fr |
| NJW4140R-Z2 |
|
MSOP8(VSP8) | - | - |
- 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.
FAQ
Buy / Contact
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Purchase, Request for samples and documentsSales are made through distributors. Please contact your local distributors for any sales-related inquiry such as price.
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Available from 1 piece!Our electronic device products are available through our authorized online distributors.
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Technical Support
NJW4140 Series