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PCA9624PW PDF预览

PCA9624PW

更新时间： 2024-11-12 10:17:03
品牌 Logo 应用领域
恩智浦 - NXP 显示驱动器驱动程序和接口接口集成电路光电二极管
页数 文件大小 规格书
37页 203K
描述
8-bit Fm+ I2C-bus 100 mA 40 V LED driver

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中文翻译

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PCA9624PW 技术参数

是否Rohs认证： 符合生命周期：Active
零件包装代码：TSSOP包装说明：TSSOP,
针数：24Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.64Is Samacsys：N
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：8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
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.1 mm最大供电电压：5.5 V
最小供电电压：2.3 V标称供电电压：2.7 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：1 MHzBase Number Matches：1

PCA9624PW 数据手册

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PCA9624  
8-bit Fm+ I2C-bus 100 mA 40 V LED driver  
Rev. 02 — 26 August 2009  
Product data sheet  
1. General description  
The PCA9624 is an I2C-bus controlled 8-bit LED driver optimized for voltage switch  
dimming and blinking 100 mA Red/Green/Blue/Amber (RGBA) LEDs. Each LED output  
has its own 8-bit resolution (256 steps) fixed frequency individual PWM controller that  
operates at 97 kHz with a duty cycle that is adjustable from 0 % to 99.6 % to allow the  
LED to be set to a specific brightness value. An additional 8-bit resolution (256 steps)  
group PWM controller has both a fixed frequency of 190 Hz and an adjustable frequency  
between 24 Hz to once every 10.73 seconds with a duty cycle that is adjustable from 0 %  
to 99.6 % that is used to either dim or blink all LEDs with the same value.  
Each LED output can be off, on (no PWM control), set at its individual PWM controller  
value or at both individual and group PWM controller values. The PCA9624 operates with  
a supply voltage range of 2.3 V to 5.5 V and the 100 mA open-drain outputs allow  
voltages up to 40 V.  
The PCA9624 is one of the first LED controller devices in a new Fast-mode Plus (Fm+)  
family. Fm+ devices offer higher frequency (up to 1 MHz) and more densely populated bus  
operation (up to 4000 pF).  
The active LOW Output Enable input pin (OE) blinks all the LED outputs and can be used  
to externally PWM the outputs, which is useful when multiple devices need to be dimmed  
or blinked together without using software control.  
Software programmable LED Group and three Sub Call I2C-bus addresses allow all or  
defined groups of PCA9624 devices to respond to a common I2C-bus address, allowing  
for example, all red LEDs to be turned on or off at the same time or marquee chasing  
effect, thus minimizing I2C-bus commands. Seven hardware address pins allow up to  
126 devices on the same bus.  
The Software Reset (SWRST) Call allows the master to perform a reset of the PCA9624  
through the I2C-bus, identical to the Power-On Reset (POR) that initializes the registers to  
their default state causing the outputs to be set HIGH (LED off). This allows an easy and  
quick way to reconfigure all device registers to the same condition.  
The PCA9624 and PCA9634 software is identical and if the PCA9624 on-chip 100 mA  
NAND FETs do not provide enough current or voltage to drive the LEDs, then the  
PCA9634 with larger current or higher voltage external drivers can be used.  
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