收藏本站
NXP Semiconductors
PCA9533
4-bit I 2 C-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.
Table 11.
Programming PCA9533
Program sequence
START
PCA9533 address
PSC0 subaddress + Auto-Increment
Set prescaler PSC0 to achieve a period of 1 second:
PSC0 + 1
Blink period = 1 = ------------------------
152
PSC0 = 151
Set PWM0 duty cycle to 50 %:
PWM0
----------------- = 0.5
256
PWM0 = 128
Set prescaler PCS1 to dim at maximum frequency:
Blink period = max
PSC1 = 0
Set PWM1 output duty cycle to 25 %:
PWM1
----------------- = 0.25
256
PWM1 = 64
Set LED0 on, LED1 off; LED2 set to blink at PSC0, PWM0; LED3 set to blink at
PSC1, PWM1
STOP
9. Limiting values
Table 12. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
I 2 C-bus
S
C4h
11h
97h
80h
00h
40h
E1h
P
Symbol
V DD
V I/O
I O(LEDn)
I SS
P tot
T stg
T amb
Parameter
supply voltage
voltage on an input/output pin
output current on pin LEDn
ground supply current
total power dissipation
storage temperature
ambient temperature
Conditions
operating
Min
? 0.5
V SS ? 0.5
-
-
-
? 65
? 40
Max
+6.0
5.5
25
100
400
+150
+85
Unit
V
V
mA
mA
mW
° C
° C
PCA9533_3
? NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 03 — 27 April 2009
12 of 24
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
PCA9550DP,118 IC LED DRIVER BLINKER 8-TSSOP
PCA9551BS,118 IC LED DRIVER BLINKER 16-HVQFN
PCA9552D,118 IC LED DRIVER BLINKER 24-SOIC
PCA9553DP/01,118 IC LED DRIVER LINEAR 8-TSSOP
PCA9624PW,118 IC LED DRIVER RGBA 24-TSSOP
PCA9625D/S911,518 IC LED DRIVER RGBA 32-SOIC
PCA9626BS,518 IC LED DRIVER RGBA 48HVQFN
PCA9632DP2,118 IC LED DRIVER RGBA 10-TSSOP
相关代理商/技术参数
PCA9533DP/02 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:4-bit I2C-bus LED dimmer
PCA9533DP/02,118 功能描述:LED照明驱动器 4-BIT I2C-BUS LED DIMMER RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
PCA9533DP01 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:4-bit I2C LED dimmer
PCA9533DP02 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:4-bit I2C LED dimmer
PCA9534 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit I2C and SMBus, low power I/O port with interrupt
PCA9534A 制造商:TI 制造商全称:Texas Instruments 功能描述:REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS
PCA9534A_10 制造商:TI 制造商全称:Texas Instruments 功能描述:REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS
PCA9534A_101 制造商:TI 制造商全称:Texas Instruments 功能描述:REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS