Medium Voltage DC-DC LED Drivers
30V 350mA LED Driver with 1000:1 PWM Dimming and AEC-Q100
Product Overview Specs
DescriptionThe ZXLD1352 is a continuous mode inductive step-down converter, designed for driving single or multiple series connected °Cs efficiently from a voltage source higher than the °C voltage. The device operates from an input supply between 7V and 30V and provides an externally adjustable output current of up to 350mA. Depending upon supply voltage and external components, this can provide up to 8 watts of output power. The ZXLD1352 includes the output switch and a high-side 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. DC voltages between 0.3V and 2.5V allow adjustment of output current from 25% to 200% of nominal. 1000:1 adjustment of output current is possible using PWM control. Applying a voltage of 0.2V or lower to the ADJ pin turns the output off and switches the device into a low current standby state. The device is assemb°C in a TSOT25 pin package.
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