PCA9532BS: 16位I2C总线LED调光器
PCA9532是一款16位I²C总线和SMBus I/O扩展器，针对红/绿/蓝(RGB)色彩混合和背光应用中的独立256阶调光LED进行了优化。
PCA9532集成内部振荡器，具有两个用户可编程闪烁速率和占空比，并耦合至输出PWM信号。 通过将闪烁速率设为足够高（100 Hz以上，直到无法以肉眼看出闪烁），然后利用占空比改变LED开启时间，从而改变流经LED的平均电流，即可控制LED亮度。
初始建立序列编程为每个独立PWM设置两个闪烁速率/占空比。此后，仅需总线主机发出一条命令，便可对单个LED执行开启、关闭、闪烁速率1或闪烁速率2等操作。根据编程设置的频率和占空比，闪烁速率1和闪烁速率2将使LED表现为不同的亮度，或以最长为1.69 s的周期闪烁。开漏输出以每位25 mA以及每封装200 mA（每8位100 mA）的最大输出吸电流直接驱动LED。
若要以比1.69 s更长的周期闪烁LED，则总线主机（MCU、MPU、DSP、芯片组等）必须发送重复命令以开启和关闭LED，与使用一般I/O扩展器（如恩智浦PCF8575或PCA9555）所需完成的操作相同。所有未用来控制LED的位都可用作通用并行输入/输出(GPIO)扩展，当需要额外I/O作为ACPI电源开关、传感器、按钮、报警监控、风扇等功能时可提供简易解决方案。
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）。
PCA9532上的3个硬件地址针脚允许在一条总线上运行8个器件。
Outline 3d SOT616-1
数据手册 (1)
| 名称/描述 | Modified Date |
|---|---|
| 16-bit I2C-bus LED dimmer (REV 4.1) PDF (311.0 kB) PCA9532 [English] | 22 Aug 2016 |
应用说明 (3)
| 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 manual (REV 1.0) PDF (4.2 MB) AN10216 [English] | 27 Mar 2003 |
| I2C Devices for LED Display Control (REV 1.0) PDF (1.0 MB) AN264 [English] | 22 Jul 2002 |
用户指南 (5)
| 名称/描述 | Modified Date |
|---|---|
| PCA9532 demonstration board OM13528 (REV 1.0) PDF (405.0 kB) UM10988 [English] | 04 May 2016 |
| 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 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 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 | Enable | Operating Temperature (Cel) | PWMs | I2C-bus interface | Reset input pin | I2C-bus (kHz) | Operating voltage (VDC) | Max Sink Current per bit (mA) | No of Addresses | Max Sink Current, per package (mA) | Number of bits |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9532BS | Active | SOT616-1 | -40~85 | 2 (160 Hz to 1.6 sec) | yes | 400 | 2.3~5.5 | 25 | 8 | 200 | 16 |
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 | EFR | IFR(FIT) | MTBF（小时） | MSL | MSL LF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9532BS | | SOT616-1 | Reel 13" Q1/T1 | Active | PCA9532BS,118 (9352 728 39118) | 9532 | PCA9532BS |    | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 |
- 16-bit I2C-bus LED dimmer PCA9532
- Level shifting techniques in I2C-bus design pca9685pw
- I2C manual se98apw
- I2C Devices for LED Display Control PCA9553
- PCA9532 demonstration board OM13528 PCA9532
- 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 dimming with GPIO expansion; NXP® 2/4/8/16-bit I2C/SMBus LED dimmers PCA9530/31/32/33 PCA9551
- 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
- TFF11152HN
