Step-Up/Flyback Switching Regulator IC with Constant Current Control
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.
Consumer 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
- 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.
Sample / Buy
Buy, Request for Samples, Request for Information Materials
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|Thermal Shutdown Function
|LX Current Limit Function
|Undervoltage Lockout Protection
|Overvoltage Lockout Protection
|Reverse Current Protection Circuit
|Soft Start Function
|Spread Spectrum Clock Generator Function
|Power Good Output
|Auto Discharge Function
|Anti-ringing Switch Function
|Start-up Sequencing Control
|Maximum Duty Cycle
|Externally Adjustable Phase Compensation
|LED High-speed Dimming Control