IS31FL3236 36 CHANNELS LED DRIVER February 2018 GENERAL DESCRIPTION FEATURES IS31FL3236 is comprised of 36 constant current 2.7V to 5.5V supply channels each with independent PWM control, I2C interface, automatic address increment designed for driving LEDs. The output current of each function channel can be set at up to 38mA (Max.) by an external Internal reset register resistor and independently scaled by a factor of 1, 1/2, Modulate LED brightness with 256 steps PWM 1/3 and 1/4. The average LED current of each channel Each channel can be controlled independently can be changed in 256 steps by changing the PWM Each channel can be scaled independently by 1, duty cycle through an I2C interface. 1/2, 1/3 and 1/4 The chip can be turned off by pulling the SDB pin low or -40C to +85C temperature range by using the software shutdown feature to reduce QFN-44 (5mm 5mm) and eTQFP-48 package power consumption. IS31FL3236 is available in QFN-44 (5mm 5mm) and APPLICATIONS eTQFP-48 package. It operates from 2.7V to 5.5V over Mobile phones and other hand-held devices for the temperature range of -40C to +85C. LED display LED in home appliances TYPICAL APPLICATION CIRCUIT Figure 1 Typical Application Circuit Note 1: The maximum global output current is set up to 23mA when R = 3.3k . The maximum global output current can be set by external EXT resistor, R . Please refer to the detail information in Page 11. EXT Note 2: The IC should be placed far away from the mobile antenna in order to prevent the EMI. Lumissil Microsystems www.lumissil.com 1 Rev. G, 02/11/2018 IS31FL3236 PIN CONFIGURATION Package Pin Configuration (Top View) QFN-44 OUT3 1 36 OUT34 OUT4 2 35 OUT33 3 34 OUT5 OUT32 GND 4 33 GND OUT6 5 32 OUT31 OUT7 6 31 OUT30 eTQFP-48 OUT8 7 30 OUT29 OUT98O29UT28 OUT10 9 28 OUT27 OUT11 10 27 OUT26 OUT12 11 26 OUT25 OUT13 12 25 OUT24 Lumissil Microsystems www.lumissil.com 2 Rev. G, 02/11/2018