參數資料
型號： PCA9532D
廠商： NXP Semiconductors N.V.
元件分類： LED驅動器
英文描述： 16-bit I2C-bus LED dimmer
封裝： PCA9532BS<SOT616-1 (HVQFN24)|<<http://www.nxp.com/packages/SOT616-1.html<1<Always Pb-free,;PCA9532D<SOT137-1 (SO24)|<<http://www.nxp.com/packages/SOT137-1.html<1<we
文件頁數： 6/29頁
文件大小： 164K
代理商： PCA9532D
PCA9532_4
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 17 March 2009
14 of 29
NXP Semiconductors
PCA9532
16-bit I2C-bus LED dimmer
8.2 Programming example
The following example will show how to set LED0 to LED3 on. It will then set LED4 and
LED5 to blink at 1 Hz at a 50 % duty cycle. LED6 and LED7 will be set to be dimmed at
25 % of their maximum brightness (duty cycle = 25 %). LED8 to LED15 will be set to off.
Fig 15. High value resistor in parallel with
the LED
Fig 16. Device supplied by a lower voltage
002aac189
LED
VDD
LEDn
100 k
VDD
002aac190
LED
VDD
LEDn
3.3 V
5 V
Table 11.
Programming PCA9532
Program sequence
I2C-bus
START
S
PCA9532 address with A0 to A2 = LOW
C0h
PSC0 subaddress + Auto-Increment
12h
Set prescaler PSC0 to achieve a period of 1 second:
PSC0 = 151
97h
Set PWM0 duty cycle to 50 %:
PWM0 = 128
80h
Set prescaler PCS1 to dim at maximum frequency:
PSC1 = 0
00h
Set PWM1 output duty cycle to 25 %:
PWM1 = 64
40h
Set LED0 to LED3 on
55h
Set LED4 and LED5 to PWM0, and LED6 or LED7 to PWM1
FAh
Set LED8 to LED11 off
00h
Set LED12 to LED15 off
00h
STOP
P
Blink period
1
PSC0
1
+
152
------------------------
==
PWM 0
256
-----------------
0.5
=
Blink period
max
=
PWM 1
256
-----------------
0.25
=
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相關代理商/技術參數
參數描述
PCA9532D,112 功能描述:LED照明驅動器 I2C LED DIMMER 16BIT RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N
PCA9532D,118 功能描述:LED照明驅動器 16-BIT I2C FM OD LED DIM RST RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N
PCA9532D118 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述:
PCA9532PW 功能描述:LED照明驅動器 I2C LED DIMMER 16BIT RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N
PCA9532PW,112 功能描述:LED照明驅動器 I2C LED DIMMER 16BIT RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N
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