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PCA9533D/02,112 PDF预览

PCA9533D/02,112

更新时间: 2024-11-07 14:35:15
品牌 Logo 应用领域
恩智浦 - NXP PC驱动光电二极管接口集成电路
页数 文件大小 规格书
24页 140K
描述
PCA9533 - 4-bit I2C-bus LED dimmer SOIC 8-Pin

PCA9533D/02,112 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:SOIC包装说明:SOP, SOP8,.25
针数:8Reach Compliance Code:compliant
HTS代码:8542.39.00.01风险等级:5.35
数据输入模式:SERIAL接口集成电路类型:LED DISPLAY DRIVER
JESD-30 代码:R-PDSO-G8JESD-609代码:e4
长度:4.9 mm湿度敏感等级:1
复用显示功能:NO功能数量:1
区段数:4端子数量:8
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP8,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
电源:2.5/5 V认证状态:Not Qualified
座面最大高度:1.75 mm子类别:Display Drivers
最大供电电压:5.5 V最小供电电压:2.3 V
标称供电电压:3.3 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
宽度:3.9 mm最小 fmax:0.4 MHz
Base Number Matches:1

PCA9533D/02,112 数据手册

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PCA9533  
4-bit I2C-bus LED dimmer  
Rev. 03 — 27 April 2009  
Product data sheet  
1. General description  
The PCA9533 is a 4-bit I2C-bus and SMBus I/O expander optimized for dimming LEDs in  
256 discrete steps for Red/Green/Blue (RGB) color mixing and back light applications.  
The PCA9533 contains an internal oscillator with two user programmable blink rates and  
duty cycles coupled to the output PWM. The LED brightness is controlled by setting the  
blink rate high enough (> 100 Hz) that the blinking cannot be seen and then using the duty  
cycle to vary the amount of time the LED is on and thus the average current through the  
LED.  
The initial setup sequence programs the two blink rates/duty cycles for each individual  
PWM. From then on, only one command from the bus master is required to turn individual  
LEDs ON, OFF, BLINK RATE 1 or BLINK RATE 2. Based on the programmed frequency  
and duty cycle, BLINK RATE 1 and BLINK RATE 2 will cause the LEDs to appear at a  
different brightness or blink at periods up to 1.69 second. The open-drain outputs directly  
drive the LEDs with maximum output sink current of 25 mA per bit and 100 mA per  
package.  
To blink LEDs at periods greater than 1.69 second the bus master (MCU, MPU, DSP,  
chip set, etc.) must send repeated commands to turn the LED on and off as is currently  
done when using normal I/O expanders like the NXP Semiconductors PCF8574 or  
PCA9554. Any bits not used for controlling the LEDs can be used for General Purpose  
parallel Input/Output (GPIO) expansion, which provides a simple solution when additional  
I/O is needed for ACPI power switches, sensors, push-buttons, alarm monitoring, fans,  
etc.  
The Power-On Reset (POR) initializes the registers to their default state, causing the bits  
to be set HIGH (LED off).  
Due to pin limitations, the PCA9533 is not featured with hardware address pins. The  
PCA9533/01 and the PCA9533/02 have different fixed I2C-bus addresses allowing  
operation of both on the same bus.  
2. Features  
I 4 LED drivers (on, off, flashing at a programmable rate)  
I Two selectable, fully programmable blink rates (frequency and duty cycle) between  
0.591 Hz and 152 Hz (1.69 second and 6.58 milliseconds)  
I 256 brightness steps  
I Input/outputs not used as LED drivers can be used as regular GPIOs  
I Internal oscillator requires no external components  
I I2C-bus interface logic compatible with SMBus  
 
 

PCA9533D/02,112 替代型号

型号 品牌 替代类型 描述 数据表
PCA9553TK,118 NXP

完全替代

PCA9553 - 4-bit I2C-bus LED driver with programmable blink rates SON 8-Pin
PCA9533D/01,112 NXP

类似代替

PCA9533 - 4-bit I2C-bus LED dimmer SOIC 8-Pin
PCA9553TK NXP

功能相似

4-bit I2C-bus LED driver with programmable blink rates

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