參數(shù)資料
型號(hào): PCA9533D
廠(chǎng)商: NXP Semiconductors N.V.
元件分類(lèi): LED驅(qū)動(dòng)器
英文描述: 4-bit I2C-bus LED dimmer
封裝: PCA9533D/01<SOT96-1 (SO8)|<<http://www.nxp.com/packages/SOT96-1.html<1<week 5, 2005,;PCA9533D/01<SOT96-1 (SO8)|<<http://www.nxp.com/packages/SOT96-1.html<1<week 5,
文件頁(yè)數(shù): 4/24頁(yè)
文件大?。?/td> 140K
代理商: PCA9533D
PCA9533_3
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 03 — 27 April 2009
12 of 24
NXP Semiconductors
PCA9533
4-bit I2C-bus LED dimmer
8.2 Programming example
The following example will show how to set LED0 and LED1 off. It will set LED2 to blink at
1 Hz at a 50 % duty cycle. LED3 will be set to be dimmed at 25 % of their maximum
brightness (duty cycle = 25 %). PCA9533/01 is used in this example.
9.
Limiting values
Table 11.
Programming PCA9533
Program sequence
I2C-bus
START
S
PCA9533 address
C4h
PSC0 subaddress + Auto-Increment
11h
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 on, LED1 off; LED2 set to blink at PSC0, PWM0; LED3 set to blink at
PSC1, PWM1
E1h
STOP
P
Blink period
1
PSC0
1
+
152
------------------------
==
PWM 0
256
-----------------
0.5
=
Blink period
max
=
PWM 1
256
-----------------
0.25
=
Table 12.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
Conditions
Min
Max
Unit
VDD
supply voltage
0.5
+6.0
V
VI/O
voltage on an input/output pin
VSS 0.5
5.5
V
IO(LEDn)
output current on pin LEDn
-
25
mA
ISS
ground supply current
-
100
mA
Ptot
total power dissipation
-
400
mW
Tstg
storage temperature
65
+150
°C
Tamb
ambient temperature
operating
40
+85
°C
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCA9533D/01 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:4-bit I2C-bus LED dimmer
PCA9533D/01,112 功能描述:LED照明驅(qū)動(dòng)器 4-BIT I2C FM OD LED DIM 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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
PCA9533D/01,118 功能描述:LED照明驅(qū)動(dòng)器 4-BIT I2C FM OD LED 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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
PCA9533D/01112 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:
PCA9533D/01-T 功能描述:LED照明驅(qū)動(dòng)器 4-BIT I2C FM OD LED DIM 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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N