ISL97684 Compact 2-3-4-Ch LED Drivers

ISL97684 Compact 2-3-4-Ch LED Drivers

DATASHEET ISL97682, ISL97683, ISL97684 Compact 2-3-4-Ch LED Drivers with Phase Shift Control FN7689 Rev.2.00 Sep 19, 2017 The ISL97682, ISL97683, ISL97684 are Intersil’s highly integrated 2-3-4-channel LED drivers that are suitable for medium size TFT-LCD backlights. These parts can drive multipl.

Features

• ISL97682 - 2 x 100mA Channels
• ISL97683 - 3 x 50mA Channels
• ISL97684 - 4 x 50mA Channels
• Input Voltage 4.0V~26.5V with Max VOUT of 45V
• Input Voltage 3.0V (see Figure 26)~24V with Max VOUT of 26.5V
• PWM Dimming Linearity - PWM Dimming with Adjustable Dimming Frequency with Duty Cycle Linear from 0.4% to 100% <30kHz - Direct PWM Dimming with Duty Cycle Linear from 0.009% to 100% at 200Hz
• Current Matching of 0.7% typical from 1%~100% Dimming
• Selectable 600kHz or 1MHz Switching Frequency in PWM/PFM Mode
• Dynamic Headroom Control
• Fault Protection - String Open/Short Circuit Protect.