LED驱动芯片T6322 1.5A降压型LED恒流驱动IC 原装 优势价格

T6322A-1.5A PWM控制降压型LED恒流驱动IC

性能描述：

       The T6322A is a continuous mode inductive step-down converter, designed for driving single or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The device operates from an input supply between 7V and 30V and provides an externally adjustable output current of up to 1.5A. Depending upon supply voltage and external components, this can provide up to 42 watts of output power. The T6322A includes the output switch and a highside output current sensing circuit, which uses an external resistor to set the nominal average output current. Output current can be adjusted above, or below the set value, by applying an external control signal to the 'ADJ' pin. The ADJ pin will accept either a DC voltage or a PWM waveform. Depending upon the control frequency, this will provide either a continuous or a gated output current. The PWM filter components are contained within the chip. The T6322A is available in SOT-23 and SOP-8 Lead-free package.

特点：

• Wide Input Voltage Range: 7V to 30V
• LED Output Current Up to 1.5A
• Soft-start
• Single pin on/off and brightness control using DC voltage or PWM
• High efficiency (up to 97%)
• Up to 1MHz switching frequency
• T*ical 5% output current accuracy
• SOT-23 and SOP-8 Lead-free Package

应用：

• LED/Display Back Light Driver
• Lightings
• Portable Communication Devices
• Handheld Electronics