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.
PT4115 China Resources Silicon Power LED driver chip
PT4115 Buck High Power LED Driver IC
PT4115 can drive up to 7 LEDs in series, providing output power from 1W to over 28W
High current, small package, high brightness LED driver chip
Wide voltage input, input voltage is 6V~30V
The maximum output constant current can reach 1.2A
DC voltage or PWM control brightness change
Up to 1MHZ switching frequency
Output current accuracy can reach ±5%
Efficiency up to 97%
Internal open circuit protection function
Maximum output power up to 20W
Can drive up to 7x3W
Based on the PT4105, the PT4115 chip expands the input voltage range to 8V~40V and increases the output LED current to 1.2A to adapt to the rapidly developing high-power LED market.
PT4115 is very easy to use. It only requires an input capacitor, an inductor, a diode and a sampling resistor, a total of four external components.
Since the voltage drop of the external current detection resistor is only 100mV and the internal on-resistance is 0.4Ω, the power consumption of the chip and the system is reduced, the efficiency of the LED lighting system is greatly improved, and the power saving effect is achieved.
The extremely fast current response time of PT4115 enables a dimming ratio of up to 5000:1 (0.02%100%) at 100Hz PWM dimming.
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