PCA9552BS: 16位I2C总线LED驱动器,具有可编程闪烁速率

PCA9552 LED闪烁器可在I²C总线和SMBus应用中闪烁LED,而在这些应用中有必要限制总线流量或释放I²C总线主机(MCU、MPU、DSP、芯片组等)定时器。该器件的独特之处是集成内部振荡器,提供两种可编程闪烁速率。若要使用普通的I/O扩展器(如PCF8574或PCA9554)闪烁LED,则总线主机必须发送重复命令,开启和关闭LED。这可极大地增加I²C总线上的流量,并耗尽主机的其中一个定时器。而PCA9552 LED闪烁器仅需初始设置命令便可编程闪烁速率1和闪烁速率2(即频率和占空比),用于各独立输出。在此之后,只需总线主机发出一条命令,便可开启或关闭各开漏输出,或者在闪烁速率1或闪烁速率2之间循环切换。最大输出吸电流为每位25 mA,以及每封装200 mA。

任何未用于控制LED的位都可用作通用并行输入/输出(GPIO)扩展。

低电平有效硬件复位针脚(RESET)和上电复位(POR)可将寄存器初始化为它们的默认状态(全零),使位变为高电平(LED关闭)。

PCA9552上的3个硬件地址针脚允许在一条总线上运行8个器件。

PCA9552BS: 产品结构框图
Outline 3d SOT616-1
数据手册 (1)
名称/描述Modified Date
16-bit I2C-bus LED driver with programmable blink rates (REV 5.0) PDF (159.0 kB) PCA9552 [English]09 Mar 2006
应用说明 (2)
名称/描述Modified Date
Level shifting techniques in I2C-bus design (REV 1.0) PDF (52.0 kB) AN10441 [English]20 Jun 2007
I2C Devices for LED Display Control (REV 1.0) PDF (1.0 MB) AN264 [English]22 Jul 2002
用户指南 (4)
名称/描述Modified Date
I2C-bus specification and user manual (REV 6.0) PDF (1.4 MB) UM10204 [English]28 Apr 2014
I2C-bus specification and user manual (REV 5.0) PDF (1.6 MB) UM10204_JA [English]03 Apr 2013
PCA9633 demonstration board OM6282 (REV 1.0) PDF (337.0 kB) UM10317 [English]15 Dec 2008
I2C Demonstration Board 2005-1 Quick Start Guide (REV 1.0) PDF (261.0 kB) UM10206 [English]13 Jun 2006
手册 (4)
名称/描述Modified Date
NXP® I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns (REV 1.0) PDF (3.5 MB) 75017540 [English]01 Aug 2014
LED controllers: Voltage-switch drivers, constant-current drivers, and Flash LED drivers (REV 1.0) PDF (2.7 MB) 75017588 [English]03 Jul 2014
Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for... (REV 1.0) PDF (1.1 MB) 75016543 [English]01 Jun 2008
LED blinking with GPIO expansion; NXP® 2/4/8/16-bit I2C/SMBus LED blinkers PCA9550/51/52/53 (REV 1.0) PDF (219.0 kB) 75016021 [English]01 Jun 2007
封装信息 (1)
名称/描述Modified Date
plastic thermal enhanced very thin quad flat package; no leads; 24 terminals; body 4 x 4 x 0.85 mm (REV 1.0) PDF (202.0 kB) SOT616-1 [English]08 Feb 2016
包装 (1)
名称/描述Modified Date
HVQFN24; reel pack; standard product orientation; 12NC ending 118 (REV 1.0) PDF (196.0 kB) SOT616-1_118 [English]16 Jan 2014
报告或演示文稿 (1)
名称/描述Modified Date
design_con_2003_tecforum_i2c_b_1 (REV 0.1) PDF (4.2 MB) DESIGN_CON_2003_TECFORUM_I2C_B_1 [English]27 Jan 2003
订购信息
型号状态Package version应用EnableOperating Temperature (Cel)PWMsI2C-bus interfaceReset input pinI2C-bus (kHz)Operating voltage (VDC)Max Sink Current per bit (mA)No of AddressesMax Sink Current, per package (mA)Number of bits
PCA9552BSActiveSOT616-1-40~852 (40 Hz to 6.4 sec)yes4002.3~5.525820016
封装环保信息
产品编号封装说明Outline Version回流/波峰焊接包装产品状态部件编号订购码 (12NC)Marking化学成分RoHS / 无铅 / RHF无铅转换日期EFRIFR(FIT)MTBF(小时)MSLMSL LF
PCA9552BSSOT616-1Reel 13" Q1/T1ActivePCA9552BS,118 (9352 723 96118)9552PCA9552BSAlways Pb-free0.02.05E811
16-bit I2C-bus LED driver with programmable blink rates PCA9552
Level shifting techniques in I2C-bus design pca9685pw
I2C Devices for LED Display Control PCA9553
I2C-bus specification and user manual pca9685pw
I2C-bus specification and user manual pca9685pw
PCA9633 demonstration board OM6282 pca9685pw
I2C Demonstration Board 2005-1 Quick Start Guide pca9685pw
NXP® I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns pca9685pw
LED controllers: Voltage-switch drivers, constant-current drivers, and Flash LED drivers pca9685pw
Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for... PMEG6010CE_AUTOMOTIVE
LED blinking with GPIO expansion; NXP® 2/4/8/16-bit I2C/SMBus LED blinkers PCA9550/51/52/53 PCA9553
design_con_2003_tecforum_i2c_b_1 lm75a
plastic thermal enhanced very thin quad flat package; no leads; 24 terminals; body 4 x 4 x 0.85 mm TFF1007HN
HVQFN24; reel pack; standard product orientation; 12NC ending 118 TFF1007HN
PCA9552
TFF11152HN