IS31FL3758 - Lumissil

IS31FL3758 48CH LED DRIVER

IS31FL3758 is a 48ch LED driver with 48 constant current channels. It also supports from one to eight power scan to become a 48ch, 47×1, 46×2, 45×3…40×8, 40×9 matrix LED driver by control 9~2 external power PMOS. Each channel can be pulse width modulated (PWM) with maximum 8-bit/6+2-bit 256 steps precision for smooth LED brightness control. The maximum outp.

Features

• Operating voltage: 2.7V to 5.5V
• Support 48 constant current channels @ 60mA/ch - ±7% bit-to-bit output current accuracy @IOUT=40mA, - ±6% device-to-device output current accuracy @IOUT=40mA - Combined for higher current capability with same current accuracy - Minimum headroom voltage of 200mV(typ.) at 40mA
• Support to control the PMOS to become a matrix LED controller Support 48ch, 47×1, 46×2, 45×3, …, 40×8, 40×9, SW need external PMOS, OUT can control the SW timing
• Interface - SPI (12MHz) - I2C (1MHz)
• SDB pin rising edge reset the interface
• Support 8-bit and 6 + 2-bit dithering PWM.