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NXP Semiconductors Data Sheet: Technical Data
Low cost six channel led backlight driver with integrated power supply
Document Number: MC34845 Rev. 8.0, 8/2016
34845
The 34845 series represents high efficiency LED drivers for use in backlighting LCD displays from 10” to 17”. Operating from supplies of 5.0 V to 21 V, the 34845 series is capable of driving up to 16 LEDs in series in six separate strings. The LED current tolerance in the six strings is within ±2% maximum and is set using a resistor to GND.
PWM dimming is performed by applying a PWM input signal to the PWM pin which modulates the LED channels directly. An Enable Pin (EN) provides for low power standby. Alternatively, a single wire scheme selects power down when PWM is connected to the Wake pin and held low.
MC34845 Datasheet
