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.
Qualification Test Plan (QTP) Sheets
To download the QTP sheets, a myNISD account is required. If you do not have an account, please register in advance.If you already have an account, please click the button below. After logging in to myNISD, the QTP sheet list page for the corresponding series will be displayed.
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