ISL97645
Flexible buck-boost LED driver with 40V input and wide LED string voltage range for automotive and industrial.
Product Overview
Description
The ISL97645 is a flexible buck-boost LED driver supporting input voltages up to 40V and LED string voltages above or below input.
With seamless mode transition and high efficiency, it provides reliable operation across wide voltage variations common in automotive systems.
The device includes comprehensive protection and supports PWM dimming for automotive and industrial lighting applications.
Product Series
ISL
Primary Application
Automotive lighting
Key Features
- Buck-boost topology
- 40V maximum input
- 2A output current
- Seamless mode transition
- High efficiency
- PWM dimming
- Comprehensive protection
Specifications
| Input Voltage | 4.5V to 40V |
|---|---|
| Output Voltage | Up to 45V |
| Output Current | 2A |
| Topology | Buck-boost |
| Package | QFN-20 |
Applications
Automotive lighting
Automotive and EV electronics
Stop lights
Electronic system design
Turn signals
Sensor signal conditioning
Industrial lighting
Industrial automation and control
FAE Expert Insights
"The ISL97645 solves the challenge of driving LEDs when input voltage varies above and below LED forward voltage. The seamless buck-boost operation maintains constant current across the entire input range. I've used this driver in automotive stop/tail light applications where battery voltage varies significantly."
Flexible buck-boost for varying input
— Sarah Kim, BeiLuo