- 您现在的位置：买卖IC网 > PDF目录22050 > PCA9532BS,118 (NXP Semiconductors)IC LED DRIVER RGB 24-HVQFN PDF资料下载
参数资料
| 型号： | PCA9532BS,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 1/29页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER RGB 24-HVQFN |
| 产品培训模块： | LED Controllers I²C Bus Fundamentals |
| 标准包装： | 1 |
| 拓扑： | 开路漏极，PWM |
| 输出数： | 16 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光，LED 闪烁器 |
| 类型 - 次要： | RGB |
| 频率： | 400kHz |
| 电源电压： | 2.3 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-VFQFN 裸露焊盘 |
| 供应商设备封装： | 24-HVQFN（4x4） |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 825 (CN2011-ZH PDF) |
| 其它名称： | 568-3371-6 |
当前第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页
PCA9532
16-bit I 2 C-bus LED dimmer
Rev. 04 — 17 March 2009
Product data sheet
1. General description
The PCA9532 is a 16-bit I 2 C-bus and SMBus I/O expander optimized for dimming LEDs in
256 discrete steps for Red/Green/Blue (RGB) color mixing and back light applications.
The PCA9532 contains an internal oscillator with two user programmable blink rates and
duty cycles coupled to the output PWM. The LED brightness is controlled by setting the
blink rate high enough (> 100 Hz) that the blinking cannot be seen and then using the duty
cycle to vary the amount of time the LED is on and thus the average current through the
LED.
The initial setup sequence programs the two blink rates/duty cycles for each individual
PWM. From then on, only one command from the bus master is required to turn individual
LEDs ON, OFF, BLINK RATE 1 or BLINK RATE 2. Based on the programmed frequency
and duty cycle, BLINK RATE 1 and BLINK RATE 2 will cause the LEDs to appear at a
different brightness or blink at periods up to 1.69 second. The open-drain outputs directly
drive the LEDs with maximum output sink current of 25 mA per bit and 200 mA per
package (100 mA per octal).
To blink LEDs at periods greater than 1.69 second the bus master (MCU, MPU, DSP,
chip set, etc.) must send repeated commands to turn the LED on and off as is currently
done when using normal I/O expanders like the NXP Semiconductors PCF8575 or
PCA9555. Any bits not used for controlling the LEDs can be used for General Purpose
parallel Input/Output (GPIO) expansion, which provides a simple solution when additional
I/O is needed for ACPI power switches, sensors, push-buttons, alarm monitoring, fans,
etc.
The active LOW hardware reset pin (RESET) and Power-On Reset (POR) initializes the
registers to their default state, all zeroes, causing the bits to be set HIGH (LED off).
Three hardware address pins on the PCA9532 allow eight devices to operate on the same
bus.
2. Features
I 16 LED drivers (on, off, ?ashing at a programmable rate)
I Two selectable, fully programmable blink rates (frequency and duty cycle) between
0.591 Hz and 152 Hz (1.69 second and 6.58 milliseconds)
I 256 brightness steps
I Input/outputs not used as LED drivers can be used as regular GPIOs
I Internal oscillator requires no external components
I I 2 C-bus interface logic compatible with SMBus
I Internal power-on reset
相关PDF资料 |
PDF描述 |
|---|---|
| VJ1206A150KBLAT4X | CAP CER 15PF 630V 10% NP0 1206 |
| SA56004GD,112 | IC TEMP SENSOR 8-SOIC |
| 1N4936RLG | DIODE FAST REC 1A 400V DO41 |
| HBC50DRAH | CONN EDGECARD 100PS R/A .100 SLD |
| 787362-9 | 100 50SR R/A,REDESIGN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PCA9532BS-T | 功能描述:LED照明驱动器 I2C LED DIMMER 16BIT RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| PCA9532D | 功能描述:LED照明驱动器 I2C LED DIMMER 16BIT RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| PCA9532D,112 | 功能描述:LED照明驱动器 I2C LED DIMMER 16BIT RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| PCA9532D,118 | 功能描述:LED照明驱动器 16-BIT I2C FM OD LED DIM RST RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| PCA9532D118 | 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
发布紧急采购，3分钟左右您将得到回复。