Part#: IS31FL3209-QFLS4-TR
Part Category: Interface ICs

Manufacturer: Integrated Silicon Solution, Inc.

Description: LED Driver, 18-Segment

IS31FL3209 is comprised of 18 constant current
channels each with independent PWM control,
designed for driving LEDs, PWM frequency can be
23kHz (default) or 3.45kHz. The output current of each
channel can be set at up to 76mA (Max.) by an external
resistor and independently scaled by a factor of 1,
23/24, 22/24, 21/22, 20/24, 19/24, 18/24, 16/24, 14/24,
12/24, 11/24, 9/24 and 7/24.The average LED current
of each channel can be changed in 256 steps by
changing the PWM duty cycle through an I2C interface.
The chip can be turned off by pulling the SDB pin low or
by using the software shutdown feature to reduce
power consumption.
IS31FL3209 is available in QFN-28 (4mm × 4mm)
package. It operates from 2.7V to 5.5V over the
temperature range of -40°C to +125°C.