參數(shù)資料
型號: 935289802118
廠商: NXP SEMICONDUCTORS
元件分類: 顯示驅(qū)動器
英文描述: LED DISPLAY DRIVER, PDSO28
封裝: 4.40 MM, PLASTIC, MO-153, SOT361-1, TSSOP-28
文件頁數(shù): 30/54頁
文件大小: 410K
代理商: 935289802118
PCA9685_2
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 16 July 2009
36 of 50
NXP Semiconductors
PCA9685
16-channel, 12-bit PWM Fm+ I2C-bus LED controller
I2C-bus address = 1010 101x.
Remark: Set INVRT = 0, OUTDRV = 1, OUTNE = 01 (MODE2 register bits) for this conguration.
(1) Resistor value should be chosen by referencing Section 7 of
UM10204, “I2C-bus specication and
user manual”.
(2) OE requires pull-up resistor if control signal from the master is open-drain.
Fig 27. LCD backlighting application
PCA9685
LED0
LED1
SDA
SCL
OE
VDD = 2.5 V, 3.3 V or 5.0 V
ASIC/MICRO
002aac828
SDA
SCL
(1)
OE
(1)
LED2
LED3
A0
A1
A2
VDD
A3
A4
A5
VSS
10 k
(2)
LED4
LED5
LED6
LED7
LED8
LED9
LED10
LED11
LED12
LED13
LED14
LED15
CONSTANT
CURRENT
SWITCH MODE
REGULATOR
FB
OUT
VIN
Iconstant
LIGHT
SENSOR
LED supply
Rsense
LED
string
EXTCLK
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