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PCA9633PW-T PDF预览

PCA9633PW-T

更新时间： 2024-02-13 02:20:52
品牌 Logo 应用领域
恩智浦 - NXP 光电二极管
页数 文件大小 规格书
43页 211K
描述
4-bit Fm I2C-bus LED driver - # of Addresses: 126 ; Enable: yes ; I2C-bus: 1000 kHz; I2C-bus interface: Fast Mode Plus 30 mA SDA outputs for 4000 pF bus ; Max Sink Current per bit: 25 mA; Max Sink Current, per package: 100 mA; Number of bits: 4 ; Operating temperature: -40~85 Cel; Operating voltage: 2.3~5.5 VDC; PWMs: 5 (4 x 97 kHz dim and 1 x 97 kHz dim or 24 Hz to 10.73 sec blink)

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PCA9633PW-T 技术参数

Source Url Status Check Date：2013-06-14 00:00:00是否无铅： 含铅
是否Rohs认证： 符合生命周期：Obsolete
包装说明：TSSOP, TSSOP16,.25Reach Compliance Code：unknown
风险等级：5.7JESD-30 代码：R-PDSO-G16
端子数量：16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：TSSOP16,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
电源：2.5/5 V认证状态：Not Qualified
子类别：Display Drivers表面贴装：YES
温度等级：INDUSTRIAL端子形式：GULL WING
端子节距：0.635 mm端子位置：DUAL
Base Number Matches：1

PCA9633PW-T 数据手册

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PCA9633  
4-bit Fm+ I2C-bus LED driver  
Rev. 05 — 25 July 2008  
Product data sheet  
1. General description  
The PCA9633 is an I2C-bus controlled 4-bit LED driver optimized for  
Red/Green/Blue/Amber (RGBA) color mixing applications. 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. A fifth 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 LED output driver is  
programmed to be either open-drain with a 25 mA current sink capability at 5 V or totem  
pole with a 25 mA sink, 10 mA source capability at 5 V. The PCA9633 operates with a  
supply voltage range of 2.3 V to 5.5 V and the outputs are 5.5 V tolerant. LEDs can be  
directly connected to the LED output (up to 25 mA, 5.5 V) or controlled with external  
drivers and a minimum amount of discrete components for larger current or higher voltage  
LEDs.  
The PCA9633 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) allows asynchronous control of the LED  
outputs and can be used to set all the outputs to a defined I2C-bus programmable logic  
state. The OE can also be used to externally PWM the outputs, which is useful when  
multiple devices need to be dimmed or blinked together using software control. This  
feature is available for the 16-pin version only.  
Software programmable LED Group and three Sub Call I2C addresses allow all or defined  
groups of PCA9633 devices to respond to a common I2C 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.  
The PCA9633 is offered with 3 different I2C-bus address options: fixed I2C-bus address  
(8-pin version), 4 different I2C-bus addresses from 2 programmable address pins (10-pin  
version), and 126 different I2C-bus addresses from 7 programmable address pins (16-pin  
version). They are software identical except for the different number of address  
combinations.  
The Software Reset (SWRST) Call allows the master to perform a reset of the PCA9633  
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.  
 
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