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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- ECAD Model: Learn more
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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 | ILX | OCP | OVP | UVLO | OVLO | Reverse | Shutdown | Soft Start | SSCG | PGOOD | Auto Discharge | Anti-ringing | Sequencing | Max Duty | Ext. Phase | LED Adjust |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 |
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
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NJW4140 Series