数据手册DataSheet 下载PCA9530D 2位I2C总线LED调光器.pdf

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。

产品特点
  • 2位LED驱动器(开、关、以编程速率闪烁)
  • 0.591 Hz和152 Hz(1.69秒和6.58毫秒)之间的2个可选完全可编程闪烁速率(频率和占空比)
  • 256个亮度级
  • 不用作LED驱动器的输入/输出可用作常规GPIO
  • 内部振荡器无需外部组件
  • I²C总线接口逻辑兼容SMBus
  • 内部上电复位
  • SCL/SDA输入均有噪音滤波器
  • 低电平有效的复位输入 (1)
  • 2个开漏输出直接将LED驱动至25 mA
  • 输出具有边缘速率控制
  • 上电时没有毛刺
  • 支持热插入
  • 低待机电流
  • 工作电源电压范围为2.3 V至5.5 V
  • 0 Hz至400 kHz的时钟频率
  • ESD保护超过2000 V HBM JESD22-A114、150 V MM JESD22-A115和1000 V CDM JESD22-C101
  • 根据JEDEC标准JESD78完成超过100 mA的锁定测试
  • 封装方式:SO8、TSSOP8 (MSOP8)
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
PCA9530DSO8 (SOT96-1)sot096-1_poSO-SOJ-REFLOW
Wave_Soldering_Profile
Tape reel smd激活PCA9530PCA9530D,118( 9352 762 96118 )
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
PCA9530DPCA9530D,118week 5, 20050.02.05E811
PCA9530DPCA9530D,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
PCA9530 (中文):2-bit I2C-bus LED dimmerData sheetpdf2009-02-26
AN10441:Level shifting techniques in I2C-bus designApplication notepdf2007-06-20
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
75016073:LED dimming with GPIO expansion; NXP 2/4/8/16-bit I2C/SMBus LED dimmers PCA9530/31/32/33Leafletpdf2007-06-01
75016194:Easily test and demonstrate the PCA9698 40-bit GPIO; NXP PCA9698 daughter card OM6281Leafletpdf2008-05-01
75017424:NXP I2C-bus solutions 2013: Smart, simple solutions for the 12 most common design concernsLeafletpdf2013-05-23
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
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
Reflow_Soldering_Profile Wave_Soldering_Profile LPC1112FD20
PCA9530 IBIS model PCA9530DP
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
SO8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... CBT3306_Q100
PCA9530
SA612A