IS31FL3208A-QFLS4-TR

狀態	Prod
Vdd(V)	2.7-5.5
通道數	18
文件	Eval Board, Code
RGB Group	6
腳位尺寸(mm)	QFN-28(4x4)
控制接口	I2C - 400kHz
特殊功能	23/3.45kHz PWM, 38mA/CH
腳位/封裝	QF = QFN
焊料類型	L = Lead-free (RoHS Compliant)
產品系列	31 = Commercial/Industrial Analog
IC代碼	3208 = 3208
產品類別	FL = FxLED Driver
Temperature Grade	S4 = Industrial temp. (-40°C to 125°C)
包裝選項	TR = Tape & Reel
外包裝	Tape on Reel

數據表

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IS31FL3208A-QFLS4-TR 特徵

2.7V to 5.5V supply Each channel output current up to 38mA Accuracy between channels and ICs: <±6% (Max.) I2C interface, automatic address increment function Four selectable I2C addresses Internal reset register
Modulate LED brightness with 256 steps PWM
Each channel can be controlled independently Each channel can be scaled independently by 1,
11/12, 9/12 and 7/12 PWM frequency selectable
- 23kHz (default) - 3.45kHz -40°C to +125°C temperature range
QFN-28 (4mm × 4mm) package
Hand-held devices for LED display

概觀

IS31FL3208A 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 38mA (Max.) by an external resistor and independently scaled by a factor of 1, 11/12, 9/12 and 7/12. 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. IS31FL3208A 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.