AD8240 Datasheet (Analog Devices)

AD8240, LED Driver/Monitor

The AD8240 LED driver/monitor, in combination with an external transistor, supplies a constant 12 V to drive LED lamps.

This allows cost-effective LED lamp monitoring and short-circuit protection.

The output is regulated at 12 V when the supply voltage is between 12.5 V and 27 V.

A CMOS compatible,

AD8240 Features

* PWM input for LED brightness control Open LED detection Latch-off overcurrent protection Constant voltage regulated output Supply range: 9 V to 27 V Regulated voltage range: 12.5 V to 27 V Operating current: 300 µA Shutdown current: 10 µA Temperature range

* 40°C to +125°C 8-lead MSOP package