IS31FL3236

IS31FL3236 36 CHANNELS LED DRIVER July 2012 GENERAL DESCRIPTION IS31FL3236 is comprised of 36 constant current channels each with independent PWM control, designed for driving LEDs. The output current of each channel can be set at up to 38mA (Max.) by an external resistor and independently scaled by a factor of 1, 1/2, 1/3 and 1/4. 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. IS31FL3236 is available in QFN-44 (5mm × 5mm) and TQFP-48 package. It operates from 2.7V to 5.5V over the temperature range of -40°C to +85°C. FEATURES         2.7V to 5.5V supply I2C interface, automatic address increment function Internal reset register Modulate LED brightness with 256 steps PWM Each channel can be controlled independently Each channel can be scaled independently by 1, 1/2, 1/3 and 1/4 -40°C to +85°C temperature range QFN-44 (5mm × 5mm) and TQFP-48 package APPLICATIONS   Mobile phones and other hand-held devices for LED display LED in home appliances TYPICAL APPLICATION CIRCUIT http://www.DataSheet4U.net/ Figure 1 Typical Application Circuit Note: The maximum global output current is set up to 23mA when REXT = 3.3kΩ. The maximum global output current can be set by external resistor, REXT. Please refer to the detail information in Page 11. Note: The IC should be placed ...