Overview
Description
The ISL97634 represents an efficient and highly integrated PWM boost LED driver that is suitable for LED backlighting in small size LCD panels. With integrated Schottky diode, OVP, and wide range of PWM dimming capability, the ISL97634 provides a simple, reliable, and flexible solution to the backlight designers. The ISL97634 features a wide range of PWM dimming control capability. It allows dimming frequency as low as DC to 32kHz beyond audible spectrum. The ISL97634 also features a feedback disconnect switch to prevent the output from being modulated by the PWM dimming signal that minimizes system disturbance. The ISL97634 is available in the 8 Ld TDFN (2mmx3mm) package. There are 14V, 18V, and 26V OVP options that are suitable for various number of LEDs in series. The ISL97634 is specified for operation over the -40°C to +85°C ambient temperature at input voltage from 2. 4V to 5. 5V.
Features
- Drives Up to 26V Output
- Integrated over-voltage protection (OVP) of 14V, 18V, and 26V for various number of LEDs in series
- PWM Dimming Control From DC to 32kHz
- Output Disconnect Switch
- Integrated Schottky Diode
- 2.4V to 5.5V Input
- 85% Efficiency
- 1.4MHz Switching Frequency Allows Small LC
- 1µA Shutdown Current
- Internally Compensated
- 8 Ld TDFN (2mmx3mm)
- Pb-Free (RoHS Compliant)
Comparison
Applications
Applications
- LED Backlighting for:
- Cell phones
- Smartphones
- MP3
- PMP
- Automotive Navigation Panel
- Portable GPS
Documentation
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|---|---|---|
| Type | Title | Date |
| Datasheet | PDF 921 KB | |
| Product Change Notice | PDF 326 KB | |
| Product Change Notice | PDF 398 KB | |
| Product Change Notice | PDF 248 KB | |
| Other | PDF 131 KB | |
5 items
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Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
ISL97634IRT14Z-T Active Samples Available |
TDFN | Reel | 3 | Get Samples, | |
ISL97634IRT14Z-TK Active Samples Available
Buy Now
|
TDFN | Reel | 3 | Get Samples, | |
ISL97634IRT18Z-T Active Samples Available |
TDFN | Reel | 3 | Get Samples, | |
ISL97634IRT18Z-TK Active Samples Available |
TDFN | Reel | 3 | Get Samples, | |
ISL97634IRT26Z-T Active Samples Available |
TDFN | Reel | 3 | Get Samples, | |
ISL97634IRT26Z-TK Active Samples Available
Buy Now
|
TDFN | Reel | 3 | Get Samples, |
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