The ISL97634 represents an efficient and highly integrated PWM boost LED driver that is suitable for 1.8" to 3.5" LCDs that employ 2 to 7 white LEDs for backlighting. 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 3 LEDS, 4 LEDs, and 7 LEDs (3.5V/20mA type) backlight applications respectively. The ISL97634 is specified for operation over the -40°C to +85°C ambient temperature at input voltage from 2.4V to 5.5V.
| 芯片型号 | 产品状态 | 温度范围 | 封装尺寸图 | 潮湿敏感度等级MSL | 美元价格US $ |
| ISL97634IRT14Z-T | 量产 | 工业级 | 8 Ld TDFN T+R | 2 | |
| ISL97634IRT14Z-TK | 量产 | 工业级 | 8 Ld TDFN T+R | 2 | |
| ISL97634IRT18Z-T | 量产 | 工业级 | 8 Ld TDFN T+R | 2 | |
| ISL97634IRT18Z-TK | 量产 | 工业级 | 8 Ld TDFN T+R | 2 | |
| ISL97634IRT26Z-T | 量产 | 工业级 | 8 Ld TDFN T+R | 2 | |
| ISL97634IRT26Z-TK | 量产 | 工业级 | 8 Ld TDFN T+R | 2 |