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BUY UC3804N https://www.utsource.net/itm/p/1367882.html
Single Color PI 3 Flush Mount Round Shape Type
The UC3804N is an 8-pin DIP voltage mode PWM controller IC from Texas Instruments. It is designed to provide a cost-effective solution for controlling the speed of DC motors. Features: Wide supply voltage range: 4.5V to 18V High speed PWM switching frequency: up to 500kHz Low standby current: <1μA Built-in soft-start and current limit Internal oscillator Under-voltage lockout Over-temperature protection Output short-circuit protection Applications: DC motor speed control Brushless DC motor control Switching power supplies Battery chargers (For reference only)