深圳市中立信电子科技有限公司

IS31FL3236A-QFLS2-TR

36-CHANNEL LED DRIVER; SELECTABLE PWM FREQUENCY

LED照明驱动器 LED Driver 36-Channel

GENERAL DESCRIPTION IS31FL3236A-QFLS2

IS31FL3236A is comprised of 36 constant current

channels each with independent PWM control,

designed for driving LEDs, PWM frequency can be

3kHz or 22kHz. 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.  

FEATURES IS31FL3236A-QFLS2

 2.7V to 5.5V supply

 I2C interface, automatic address increment function

 Four selectable I2C addresses

 SDB rising edge reset I2C module

 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

 PWM frequency selectable

- 3kHz (default)

- 22kHz

 -40°C to +85°C temperature range:

- IS31FL3236A-QFLS2-TR, QFN-44 (5mm×5mm)

 -40°C to +125°C temperature range:

- IS31FL3236A-QFLS4-TR, QFN-44 (5mm×5mm)

- IS31FL3236A-TQFP, eTQFP-48

APPLICATIONS IS31FL3236A-QFLS2

 Mobile phones and other hand-held devices for LED display

 LED in home appliances