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PCA9552PW,118 PDF预览

PCA9552PW,118

更新时间： 2024-09-18 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
28页 159K
描述
PCA9552 - 16-bit I2C-bus LED driver with programmable blink rates TSSOP2 24-Pin

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PCA9552PW,118 技术参数

是否Rohs认证： 符合生命周期：Active
零件包装代码：TSSOP2包装说明：TSSOP, TSSOP24,.25
针数：24Reach Compliance Code：compliant
HTS代码：8542.39.00.01风险等级：0.78
数据输入模式：SERIAL接口集成电路类型：LED DISPLAY DRIVER
JESD-30 代码：R-PDSO-G24JESD-609代码：e4
长度：7.8 mm湿度敏感等级：1
复用显示功能：NO功能数量：1
区段数：16端子数量：24
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：TSSOP
封装等效代码：TSSOP24,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH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：1.1 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
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
宽度：4.4 mm最小 fmax：0.4 MHz
Base Number Matches：1

PCA9552PW,118 数据手册

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PCA9552  
16-bit I2C-bus LED driver with programmable blink rates  
Rev. 05 — 9 March 2006  
Product data sheet  
1. General description  
The PCA9552 LED blinker blinks LEDs in I2C-bus and SMBus applications where it is  
necessary to limit bus traffic or free up the I2C-bus master's (MCU, MPU, DSP, chip set,  
etc.) timer. The uniqueness of this device is the internal oscillator with two programmable  
blink rates. To blink LEDs using normal I/O expanders like the PCF8574 or PCA9554, the  
bus master must send repeated commands to turn the LED on and off. This greatly  
increases the amount of traffic on the I2C-bus and uses up one of the master's timers. The  
PCA9552 LED blinker instead requires only the initial setup command to program  
BLINK RATE 1 and BLINK RATE 2 (that is, the frequency and duty cycle) for each  
individual output. From then on, only one command from the bus master is required to  
turn each individual open-drain output on, off, or to cycle at BLINK RATE 1 or  
BLINK RATE 2. Maximum output sink current is 25 mA per bit and 200 mA per package.  
Any bits not used for controlling the LEDs can be used for General Purpose Parallel  
Input/Output (GPIO) expansion.  
The active LOW hardware reset pin (RESET) and Power-On Reset (POR) initializes the  
registers to their default state, all zeroes, causing the bits to be set HIGH (LED off).  
Three hardware address pins on the PCA9552 allow eight devices to operate on the same  
bus.  
2. Features  
■ 16 LED drivers (on, off, flashing at a programmable rate)  
■ 2 selectable, fully programmable blink rates (frequency and duty cycle) between  
0.172 Hz and 44 Hz (5.82 seconds and 0.023 seconds)  
■ Input/outputs not used as LED drivers can be used as regular GPIOs  
■ Internal oscillator requires no external components  
■ I2C-bus interface logic compatible with SMBus  
■ Internal power-on reset  
■ Noise filter on SCL/SDA inputs  
■ Active LOW reset input  
■ 16 open-drain outputs directly drive LEDs to 25 mA  
■ Edge rate control on outputs  
■ No glitch on power-up  
■ Supports hot insertion  
■ Low standby current  
■ Operating power supply voltage range of 2.3 V to 5.5 V  
■ 0 Hz to 400 kHz clock frequency  
 
 
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PCA9552PW,118 替代型号

型号 品牌 替代类型 描述 数据表
PCA9552PW,112 NXP

类似代替

 PCA9552 - 16-bit I2C-bus LED driver with programmable blink rates TSSOP2 24-Pin

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