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PCA9626BS PDF预览

PCA9626BS

更新时间： 2024-02-23 19:05:01
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
页数 文件大小 规格书
47页 240K
描述
24-bit Fm I2C-bus 100 mA 40 V LED driver

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中文翻译

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PCA9626BS 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：QFN
包装说明：6 X 6 MM, 0.85 MM HEIGHT, PLASTIC, SOT778-4, HVQFN-48针数：48
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.66
Is Samacsys：N数据输入模式：SERIAL
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：S-PQCC-N48
JESD-609代码：e4长度：6 mm
湿度敏感等级：2复用显示功能：NO
功能数量：1区段数：24
端子数量：48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：HVQCCN封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：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：NO LEAD端子节距：0.4 mm
端子位置：QUAD处于峰值回流温度下的最长时间：30
宽度：6 mm最小 fmax：1 MHz
Base Number Matches：1

PCA9626BS 数据手册

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PCA9626  
24-bit Fm+ I2C-bus 100 mA 40 V LED driver  
Rev. 02 — 31 August 2009  
Product data sheet  
1. General description  
The PCA9626 is an I2C-bus controlled 24-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 PCA9626 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 PCA9626 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 PCA9626 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 PCA9626  
through the I2C-bus, identical to the Power-On Reset (POR) that initializes the registers to  
their default state causing the output NAND FETs to be OFF (LED off). This allows an  
easy and quick way to reconfigure all device registers to the same condition.  
In addition to these features found in PCA9633, PCA9634, PCA9635, PCA9622 and  
PCA9624, a new feature to control LED output pattern is incorporated in the PCA9626. A  
new control byte called ‘Chase Byte’ allows enabling or disabling of selective LED outputs  
depending on the value of the Chase Byte. This feature greatly reduces the number of  
bytes to be sent to the PCA9626 when repetitive patterns need to be displayed as in  
creating a marquee chasing effect.  
If the PCA9626 on-chip 100 mA NAND FETs do not provide enough current or voltage to  
drive the LEDs, then the PCA9635 and the PCA9635 with larger current or higher voltage  
external drivers can be used.  
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