Analog Devices Inc. LT3966 Quad Boost LED Driver

Analog Devices Inc. LT3966 Quad Boost LED Driver is a 4-channel, monolithic boost driver with I²C programmability and an onboard Analog-to-Digital Converter (ADC). Each channel provides a 60V current-mode boost converter with an internal 1.6A DMOS power switch, as well as internal and external analog and PWM dimming features. I²C programmable features include a 13-bit (8192:1) digital PWM generator, an 8-bit analog dimming Digital-to-Analog Converter (DAC), and flexible fault reporting and handling. The integrated 8-bit ADC enables the LT3966 to measure each channel's output voltage and output current, as well as chip input voltage and two external measurements. Also, independent shutdown and standby control of each channel provides a flexible solution for multi-topology applications.

The Analog Devices Inc. LT3966 Quad Boost LED Driver is available in a thermally enhanced 6mm x 6mm QFN40 package.

Features

Four independent DC-DC channels
I²C programmable
8192:1 True Color PWM™ dimming
8-Bit analog dimming pin scaled by DAC
11-channel, 8-bit ADC with 2 external inputs
1.6A, 60V internal DMOS switches
3V to 60V input voltage range
Output voltage and current monitoring to 60V

High side PMOS disconnect and PWM switch driver
Adjustable 300kHz to 4MHz frequency range with optional frequency synchronization
Operating temperature range
- LT3966E: -40°C to +125°C
- LT3966J: -40°C to +150°C
Thermally enhanced 6mm x 6mm QFN40 package
AEC-Q100 qualification in progress