Founded in 2004, China Resources Silicon Power Technology (Shanghai) Co., Ltd. (hereinafter referred to as "China Resources Silicon Power") is a leading IC design company in the industry. The company is based on the power management, LED lighting driver, LED backlight products and battery management market, and strives to provide customers with high-quality and comprehensive IC solutions. China Resources Silicon Power adheres to the principle of "quality first" and takes the successful provision of the most complete technical services to customers as the foundation of the enterprise.
Current mode 50W can drive hundreds of LEDs in series and parallel LED driver chips
Features
PT4207 current mode 50W can drive hundreds of LED series and parallel LED driver chip
China Resources Silicon Power LED fluorescent lamp driver chip
PT4207 LED fluorescent lamp driver chip
High voltage step-down
AC 85VAC~265VAC input
The maximum duty cycle is 100%
Non-isolated circuit structure
The output can connect hundreds of LEDs in series and parallel
Linear brightness adjustment possible
DC0.5V~2.5V analog brightness adjustment or PWM brightness adjustment
4mS soft start function
Open circuit/short circuit protection function
Typical PWM LED driver controller
High efficiency, high power factor, high brightness, new generation of energy-saving LED driver IC
Output power up to 50W
By adopting an innovative architecture, PT4207 can realize LED lighting products with a full voltage range of 85VAC~265VAC, with a duty cycle of up to 100% to ensure high system efficiency. The built-in input voltage compensation function greatly improves the LED current stability of PT4207 under different input voltages.
PT4207 has a built-in 350mA switch and is equipped with an external MOS switch drive port. For applications below 350mA, no external MOS switch is required. For applications above 350mA, an external MOS tube can be used to expand the current. The LED current can be set by an external resistor. Through the multi-function dimming DIM pin, the LED current can be linearly adjusted using a resistor or DC voltage, or a digital pulse signal can be used for PWM dimming.
PT4207 has multiple protection functions, including load short circuit protection, open circuit protection, over temperature protection, etc.
Package type: SOP8
Typical applications: Suitable for AC/DC LED fluorescent lamps, RGB backlight LED drivers, LED ambient decorative lamps and other applications.
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