LED drivers offer ‘best in class’ channel matching
Intersil's latest led drivers are said to deliver the industry's best current accuracy and channel matching for small to medium sized lcd backlights in smartphones, tablets and sub notebooks.
The ISL97682, ISL97683 and ISL97684 are 2, 3 and 4channel led drivers that operate across an input voltage range of 4 to 26.5V. They optimised to deliver outputs up to 45V and are suitable for systems using single lithium-ion batteries.
The devices incorporate optional automatic switching between PWM and PFM modes, providing up to 90% power efficiency across the input voltage and output load range. All devices feature current accuracy of 1.5% and channel to channel current matching of 0.7%.
Intersil says they are capable of providing uniform backlighting for 6 to 15in TFT lcd panels. They are also suitable for industrial and automotive displays.
