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参数资料
| 型号： | PCA9530D,112 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 1/24页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER RGB 8-SOIC |
| 标准包装： | 100 |
| 拓扑： | 开路漏极，PWM |
| 输出数： | 2 |
| 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： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | 935276296112 PCA9530D PCA9530D-ND |
PCA9530
2-bit I 2 C-bus LED dimmer
Rev. 03 — 26 February 2009
Product data sheet
1. General description
The PCA9530 is a 2-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 backlight applications.
The PCA9530 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 50 mA per
package.
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 PCF8574 or
PCA9554. 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) initialize the
registers to their default state causing the bits to be set HIGH (LED off).
One hardware address pin on the PCA9530 allows two devices to operate on the same
bus.
2. Features
I 2 LED drivers (on, off, ?ashing at a programmable rate)
I 2 selectable, fully programmable blink rates (frequency and duty cycle) between
0.591 Hz and 152 Hz (1.69 seconds and 6.58 milliseconds)
I 256 brightness steps
I Input/output 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 |
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| P51-750-S-AD-MD-4.5V-000-000 | SENSOR 750PSI 7/16-20 UNF 4.5V |
| PCA9530DP,118 | IC LED DRIVER RGB 8-TSSOP |
| TH3C155M035C3300 | CAP TANT 1.5UF 35V 20% 2312 |
| TH3C155K035E3300 | CAP TANT 1.5UF 35V 10% 2312 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCA9530DP | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:2-bit I2C LED dimmer |
| PCA9530DP,118 | 功能描述:LED照明驱动器 I2C LED DIMMER 2BIT 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 |
| PCA9530D-T | 功能描述:LED照明驱动器 2-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 |
| PCA9531 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit I2C-bus LED dimmer |
| PCA9531BS | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit I2C LED dimmer |
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