数据手册DataSheet 下载：PCA9553D 4位I2C总线LED驱动器，具有可编程闪烁速率.pdf

PCA9553 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PCA9553 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（如频率和占空比）。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100 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。

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）。

由于针脚的限制，PCA9553无硬件地址针脚。PCA9553/01和PCA9553/02具有不同的固定I²C总线地址，允许在一条总线上运行这两个器件。

产品特点
  • 4个LED驱动器（开、关、闪光速率可编程）
  • 2个可选、完全可编程闪烁速率（频率和占空比）范围为0.172 Hz至44 Hz（5.82 s和0.023 s）
  • 未用作LED驱动器的输入/输出可用作常规GPIO
  • 集成内部振荡器，无需外部元件
  • I²C总线接口逻辑兼容SMBus
  • 内部上电复位
  • SCL/SDA输入端提供噪音滤波器
  • 4个开漏输出直接驱动LED至25 mA
  • 受控边沿速率可最大程度降低接地反弹
  • 上电时无干扰
  • 支持热插拔
  • 低待机电流
  • 电源电压工作范围：2.3 V至5.5 V
  • 时钟频率：0 Hz至400 kHz
  • ESD保护：超过2000 V HBM（符合JESD22-A114标准），超过150 V MM（符合JESD22-A115标准）以及超过1000 V CDM（符合JESD22-C101标准）
  • 已完成JEDEC标准JESD78闩锁测试（超过100 mA）
  • 封装类型：SO8、TSSOP8 (MSOP8)、HVSON8
功能框图
演示板
订购型号
订购型号封装Outline versionReflow-/Wave soldering包装产品状态标示订购器件的编号
PCA9553D/01SO8 (SOT96-1)sot096-1_poSO-SOJ-REFLOW
Wave_Soldering_Profile		Tape reel smd激活9553/1PCA9553D/01,118( 9352 728 25118 )
PCA9553D/02SO8 (SOT96-1)sot096-1_poSO-SOJ-REFLOW
Wave_Soldering_Profile		Tape reel smd停产替代产品9553/2PCA9553D/02,118( 9352 728 27118 )
品质、可靠性及RoHS化学成分
订购型号订购器件的编号RoHS / RHF无铅开始日期EFRIFR (FIT)MTBF（小时）潮湿敏感度等级MSL LF
PCA9553D/01PCA9553D/01,118week 5, 20050.02.05E811
PCA9553D/01PCA9553D/01,112week 5, 20050.02.05E811
PCA9553D/02PCA9553D/02,118week 5, 20050.02.05E811
PCA9553D/02PCA9553D/02,112week 5, 20050.02.05E811
产品技术资料
文档标题类型分类格式更新日期
PCA9553 (中文)：4-bit I2C-bus LED driver with programmable blink ratesData sheetpdf2008-12-29
AN10441：Level shifting techniques in I2C-bus designApplication notepdf2007-06-20
AN256：PCA9500/PCA9501 provides simple card maintenance and control using I²C-busApplication notepdf2009-03-23
AN264：I2C Devices for LED Display ControlApplication notepdf2002-07-22
75016543：Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for major home appliancesBrochurepdf2008-06-01
75017588：LED controllers: Voltage-switch drivers, constant-current drivers, and Flash LED driversBrochurepdf2014-07-03
75016021：LED blinking with GPIO expansion; NXP 2/4/8/16-bit I2C/SMBus LED blinkers PCA9550/51/52/53Leafletpdf2007-06-01
75017424：NXP I2C-bus solutions 2013: Smart, simple solutions for the 12 most common design concernsLeafletpdf2013-05-23
design_con_2003_tecforum_i2c_bus_overview：DesignCon 2003 TecForum I 2 C Bus OverviewOther typepdf2003-01-27
UM10204：I2C-bus specification and user manualUser manualpdf2014-04-28
UM10206：I2C Demonstration Board 2005-1 Quick Start GuideUser manualpdf2006-06-12
UM10267：PCA9698 demonstration board OM6281User manualpdf2008-09-26
UM10317：PCA9633 demonstration board OM6282User manualpdf2008-12-15
UM10204_JA：I2C-bus specification and user manualUser manualpdf2013-04-03
SOT96-1_118：SO8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118Packingpdf2013-04-19
SOT96-1_115：Tape reel SMD; standard product orientation 12NC ending 115Packingpdf2012-11-23
Wave_Soldering_Profile：Wave Soldering ProfileWave solderingpdf2013-09-30
SOT96-1_518：SO8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending, 518 or Y Ordering code (12NC) ending 518Packingpdf2014-06-02
SO-SOJ-REFLOW：Footprint for reflow solderingReflow solderingpdf2009-10-08
SO-SOJ-WAVE：Footprint for wave solderingWave solderingpdf2009-10-08
sot096-1_po：plastic small outline package; 8 leads; body width 3.9 mmOutline drawingpdf2009-10-08
4-bit I2C-bus LED driver with programmable blink rates PCA9553
PCA9500/PCA9501 provides simple card maintenance and control using I²C-bus PCA9553
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
PCA9698 demonstration board OM6281 PCA9553
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
Reflow_Soldering_Profile Wave_Soldering_Profile LPC1112FD20
PCA9553 IBIS model PCA9553TK
SO8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... CBT3306_Q100
plastic small outline package; 8 leads; body width 3.9 mm CBT3306_Q100
Footprint for reflow soldering NPIC6C596A_Q100
Footprint for wave soldering NPIC6C596A_Q100
PCA9553
SA612A
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