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2022-09-24 13:47:25
PT5000
PT5000 is a high-efficiency, high-precision switching step-down high-power LED with built-in 100V power MOS
Constant current driver chip.
PT5000 adopts peak current control mode with fixed off-time, and the off-time can be adjusted by external capacitor.
Line adjustment, the working frequency can be changed according to user requirements.
PT5000 can control the driving current of high-brightness LED lights by adjusting the external current sampling resistor, so that the
The LED light brightness reaches the expected constant brightness. Adding a PWM signal to the DIM terminal can perform dimming of the LED light. The DIM side also supports linear dimming.
PT5000 also integrates VDD voltage regulator and over-temperature protection circuit to reduce peripheral components and improve
System reliability.
The PT5000 is available in an ESOP8 package. The heat sink is built into the SW pin.
Features
Built-in 100V MOS
Wide input voltage range: 3.6V~100V
High efficiency: up to 93%_supports PWM dimming and linear dimming
Maximum operating frequency: 1MHz
CS voltage: 250mV
Chip power supply under-voltage protection: 3.2V
Off-time adjustable
Intelligent over temperature protection
Built-in VDD regulator
application
Bicycle, electric vehicle, motorcycle lights
Flashlight
LED spotlight
High Power LED Lighting
LED backlight