ALT80600 Description
The ALT80600 is a multi-output LED driver for small-size LCD backlighting. It integrates a current-mode boost converter with internal power switch and four current sinks. The boost converter can drive up to 44 white LEDs, 11 LED per string, at 120 mA (VF = 3.3 V max).
ALT80600 Key Features
- Automotive AEC-Q100 qualified
- Wide input voltage range of 4.5 to 40 V for start/stop
- Fully integrated LED current sinks and boost converter
- Operate in Boost or SEPIC mode for flexible output
- Drives up to 11 series white LED in 4 parallel strings, at
- Programmable boost switching frequency or sync
- Clock-Out feature for internal switching frequency
- Adjustable boost frequency dithering to reduce EMI
- Advanced control allows minimum PWM on-time down to 0.3 µs, and avoids MLCC audible noises
- LED contrast ratio: 15,000:1 at 200 Hz using PWM dimming alone, 150,000:1 when bining PWM and analog dimming Continued o