LED drivers 'light up' battery-operated devices

摘要

Members of the ZLED family of LED control solutions, the ZLED7012/22 LED driver ICs feature low-noise, constant-frequency charge pump dc/dcrnconverters that can efficiently drive up to four ('12) or six ('22) strings of LEDs. Suitable for small, battery-powered LED-backlighting applications, both feature special low-EMI induc-torless design technology to eliminate back-injected noise.rnPulse-count-control serial digital input lets designers enable and disable LEDs and set the current level.