NJU7620 Series
Step-Up/Flyback Switching Regulator IC with Constant Current Control
NJU7620 Series
Step-Up/Flyback Switching Regulator IC with Constant Current Control
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Description
The NJU7620 is a low voltage operation high-speed switching regulator control IC for step-up and flyback converter, with a constant current control. It incorporates a totem pole output, which can drive an external MOS-FET easily. It also incorporates error amplifier and current sense amplifier, which can allow the constant voltage/current control for output voltage. Therefore the NJU7620 is suitable for a LED driving and other CCCV applications up to 10W.The NJU7620 is available in a small and thin 8-lead MSOP(TVSP) package.
Spec
Standard | |
---|---|
Input Voltage Range | 2.2 V to 8 V (9 V) |
Operating Temperature Range | -40°C to 85°C |
Supply Current | Typ. 800 µA |
Output Voltage Range | 2.2 V to - V |
Output Voltage Accuracy | ± 1.5 % |
Oscillator Frequency | 300kHz to 1MHz |
Maximum Duty Cycle | 90% typ. |
Package | MSOP8(TVSP8) |
Control | PWM switching control |
Function | Soft-Start Function Internal (16ms typ. or adjustable) Dead Time Control Constant Current Control |
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 |
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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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Related Links
Quality & Packages
Product Name | Compatibility | Package | Marking | Reliability |
---|---|---|---|---|
NJU7620RB1 |
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MSOP8(TVSP8) | - | NJU-1-s-fr |
- 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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NJU7620 Series