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参数资料
| 型号： | PCA9552D,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 13/28页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER BLINKER 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： | LED 闪烁器 |
| 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： | 935272395118 PCA9552D-T PCA9552D-T-ND |
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Philips Semiconductors
PCA9552
16-bit I 2 C-bus LED driver with programmable blink rates
8. Application design-in information
5V
5V
I 2 C-BUS/SMBus
MASTER
SDA
SCL
10 k ?
(3 × )
SDA
SCL
RESET
V DD
LED0
LED1
LED2
LED3
LED4
LED5
LED6
PCA9552 LED7
LED8
LED9
LED10
A2
A1
A0
LED11
LED12
LED13
V SS
LED14
GPIOs
LED15
002aac188
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/O is 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 15 . 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 stb 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
input/output V I at or above V DD and prevents additional supply current consumption when
the LED is off.
PCA9552_5
? Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 05 — 9 March 2006
13 of 28
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCA9552PW | 功能描述:LED照明驱动器 I2C LED BLNKER 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 |
| PCA9552PW,112 | 功能描述:LED照明驱动器 I2C LED BLNKER 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 |
| PCA9552PW,118 | 功能描述:LED照明驱动器 16-BIT I2C FM OD LED BLK 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 |
| PCA9552PW118 | 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: |
| PCA9553 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:4-bit I2C LED driver with programmable blink rates |
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