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参数资料
| 型号： | PCA9532D,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 13/29页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER RGB 24-SOIC |
| 标准包装： | 1,000 |
| 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-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SO |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | 935272838118 PCA9532D-T PCA9532D-T-ND |
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NXP Semiconductors
PCA9532
16-bit I 2 C-bus LED dimmer
8. Application design-in information
5V
5V
10 k ?
I 2 C-BUS/SMBus
MASTER
10 k ?
10 k ?
V DD
PCA9532
SDA
SCL
SDA
SCL
RESET
A2
A1
A0
V SS
LED0
LED1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
LED9
LED10
LED11
LED12
LED13
LED14
GPIOs
LED15
002aae522
LED0 to LED12 are used as LED drivers.
LED13 to LED15 are used as regular GPIOs.
Fig 14. Typical application
8.1 Minimizing I DD when the I/Os are used to control LEDs
When the I/Os are used to control LEDs, they are normally connected to V DD through a
resistor as shown in Figure 14 . Since the LED acts as a diode, when the LED is off the
I/O V I is about 1.2 V less than V DD . The supply current, I DD , increases as V I becomes
lower than V DD and is speci?ed as ? I DD in Table 13 “Static characteristics” .
Designs needing to minimize current consumption, such as battery power applications,
should consider maintaining the I/O pins greater than or equal to V DD when the LED is off.
Figure 15 shows a high value resistor in parallel with the LED. Figure 16 shows V DD less
than the LED supply voltage by at least 1.2 V. Both of these methods maintain the I/O V I
at or above V DD and prevents additional supply current consumption when the LED is off.
PCA9532_4
? NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 17 March 2009
13 of 29
相关PDF资料 |
PDF描述 |
|---|---|
| PCA9533DP/01,118 | IC LED DRIVER RGB 8-TSSOP |
| PCA9550DP,118 | IC LED DRIVER BLINKER 8-TSSOP |
| PCA9551BS,118 | IC LED DRIVER BLINKER 16-HVQFN |
| PCA9552D,118 | IC LED DRIVER BLINKER 24-SOIC |
| PCA9553DP/01,118 | IC LED DRIVER LINEAR 8-TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PCA9532PW | 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 |
| PCA9532PW,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 |
| PCA9532PW,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 |
| PCA9532PW,118-CUT TAPE | 制造商:NXP 功能描述:PCA9532 Series 16-Bit I2C-Bus and SMBus I/O Expander LED Dimmer - TSSOP - 24 |
| PCA9533 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:4-bit I2C LED dimmer |
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