Renesas Electronics Corporation LED Drivers ISL97691IRTZ-TK

The ISL97691IRTZ-TK is a highly integrated 4-channel LED driver designed for mobile display applications, particularly those requiring backlighting for 2D and 3D displays. It operates from a low input voltage range of 2.4V to 5.5V and can drive LED channels with currents of up to 60mA at 21V and 40mA at 26V. The device features independent analog and PWM dimming controls for each channel group, allowing for precise control over LED brightness and dynamic adjustments. The driver employs an adaptive boost architecture, enabling ultra-low dimming duty cycles as low as 0.005% at a 100Hz frequency. It includes essential protection features such as overvoltage protection (OVP), over-temperature protection (OTP), and open/short circuit detection. The switching frequency is adjustable between 400kHz and 1.5MHz, providing flexibility for various applications. The ISL97691IRTZ-TK is housed in a compact 16-lead TQFN package and is rated for operation in ambient temperatures from -40¬8C to +85¬8C, making it suitable for a wide range of environments.