PCA9530DP: 2位I2C总线LED调光器

PCA9530是一款2位I²C总线和SMBus I/O扩展器,最适合红色/绿色/蓝色(RGB)调色和背光应用的256级非连续LED调光控制。

PCA9530包含内部振荡器,可将两个用户可编程闪烁速率和占空比耦合到输出PWM信号中。通过将闪烁速率设得足够高(> 100 Hz)使闪烁难以察觉,然后使用占空比改变LED打开的时间,因而改变通过LED的平均电流,即可控制LED亮度,

初始设置序列会对每个独立PWM的两个闪烁速率/占空比进行编程。从此,只需总线主器件的一个命令即可将各LED转至ON、OFF、BLINK RATE 1或BLINK RATE 2。基于已编程的频率和占空比,BLINK RATE 1和BLINK RATE 2会使LED以不同亮度显示或以最大1.69秒的间隔闪烁。开漏输出会直接驱动LED,每位的最大输出灌电流为25 mA,每个封装为50 mA。

要使LED以大于1.69秒的间隔闪烁,总线主器件(MCU、MPU、DSP、芯片组等等)必须发送重复的命令以打开和关闭LED,这与当前使用类似恩智浦半导体的PCF8574或PCA9554等普通I/O扩展器时的情形相同。任何不用于控制LED的位均可用于通用并行输入/输出(GPIO)扩展,这在ACPI功率开关、传感器、按钮、警报监视、风扇等需要额外I/O时,可提供简单的解决方案。

低电平有效的硬件复位引脚(1)和上电复位(POR)会将各寄存器初始化为其默认状态,使各位设为高电平(LED关)。

PCA9530上的一个硬件地址引脚允许两个器件工作在相同总线上。

PCA9530DP: 产品结构框图
Outline 3d SOT505-1
数据手册 (1)
名称/描述Modified Date
2-bit I2C-bus LED dimmer (REV 3.0) PDF (144.0 kB) PCA9530 [English]26 Feb 2009
应用说明 (1)
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
用户指南 (5)
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
PCA9698 demonstration board OM6281 (REV 1.0) PDF (558.0 kB) UM10267 [English]26 Sep 2008
I2C Demonstration Board 2005-1 Quick Start Guide (REV 1.0) PDF (261.0 kB) UM10206 [English]13 Jun 2006
手册 (5)
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
Easily test and demonstrate the PCA9698 40-bit GPIO; NXP® PCA9698 daughter card OM6281 (REV 1.0) PDF (292.0 kB) 75016194 [English]01 May 2008
LED dimming with GPIO expansion; NXP® 2/4/8/16-bit I2C/SMBus LED dimmers PCA9530/31/32/33 (REV 1.0) PDF (212.0 kB) 75016073 [English]01 Jun 2007
封装信息 (1)
名称/描述Modified Date
plastic thin shrink small outline package; 8 leads; body width 3 mm (REV 1.0) PDF (240.0 kB) SOT505-1 [English]08 Feb 2016
包装 (1)
名称/描述Modified Date
TSSOP8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 1.0) PDF (214.0 kB) SOT505-1_118 [English]15 Apr 2013
支持信息 (1)
名称/描述Modified Date
Reflow Soldering Profile (REV 1.0) PDF (34.0 kB) REFLOW_SOLDERING_PROFILE [English]30 Sep 2013
IBIS
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
PCA9530DPActiveSOT505-1-40~852 (160 Hz to 1.6 sec)yes4002.3~5.5252502
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
PCA9530DPSOT505-1Reflow_Soldering_ProfileReel 13" Q1/T1ActivePCA9530DP,118 (9352 762 97118)9530PCA9530DPweek 12, 20050.02.05E811
2-bit I2C-bus LED dimmer PCA9530
Level shifting techniques in I2C-bus design pca9685pw
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
Easily test and demonstrate the PCA9698 40-bit GPIO; NXP® PCA9698 daughter card OM6281 PCA9530
LED dimming with GPIO expansion; NXP® 2/4/8/16-bit I2C/SMBus LED dimmers PCA9530/31/32/33 PCA9551
PCA9530 IBIS model PCA9530DP
plastic thin shrink small outline package; 8 leads; body width 3 mm pesd5v0l7bas
Reflow_Soldering_Profile Wave_Soldering_Profile LPC1112FD20
TSSOP8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... pesd5v0l7bas
PCA9530
PCT2075