Milpitas, Calif. Sipex Corp. has released a 7-channel, charge-pump based light management unit (LMU) designed for mobile display and keypad LED backlighting. The SP7680 is targeted at backlighting the main display, sub-display, and indicator functions.
The seven LED driver channels of the SP7680 are partitioned into three banks of four channels, two channels and one channel; however, the LEDs can be configured in numerous combinations to meet the needs of various lighting requirements. Each bank can be independently programmed through an I2C interface up to 31 mA (63 mA for the single channel bank) with 6-bit resolution.
The SP7680 charge pump has gains of both 1x and 1.5x and along with a driver dropout voltage of 0.2 V maximizes efficiency and extends the minimum input voltage range. The device operates at 2 MHz and uses only four small capacitors.
The SP7680 is available in a lead-free, thermally enhanced, 16-pin 3 x 3-mm QFN package, and it is specified over the -40° to 85°C temperature range.
Pricing: Starts at $1.50 in quantities of 1,000.
Sipex Corp., 1-408-935-7645, www.sipex.com