收藏本站
NXP Semiconductors
PCA9633
4-bit Fm+ I 2 C-bus LED driver
Question 3: Can I really sink 400 mA through the single ground pin on the package and
will this cause any ground bounce problem due to the PWM of the LEDs?
? Yes, you can sink 400 mA through a single ground pin on the package . Although the
package only has one ground pin, there are two ground pads on the die itself
connected to this one pin. Although some ground bounce is likely, it will not disrupt the
operation of the part and would be reduced by the external decoupling capacitance.
Question 4: I can’t turn the LEDs on or off, but their registers are set properly. Why?
? Check the Mode Register 1 bit 4 SLEEP setting. The value needs to be 0 so that the
OSC is turn on. If the OSC is turned off, the LEDs cannot be turned on or off and also
can’t be dimmed or blinked.
Question 5: I’m using LEDs with integrated Zener diodes and the IC is getting very hot.
Why?
? The IC outputs can be set to either open-drain or push-pull and default to push-pull
outputs. In this application with the Zener diodes, they need to be set to open-drain
since in the push-pull architecture there is a low resistance path to GND through the
Zener and this is causing the IC to overheat. The PCA9632/33/34/35 ICs all power-up
in the push-pull output mode and with the logic state HIGH, so one of the ?rst things
that need to be done is to set the outputs to open-drain.
11. Limiting values
Table 19. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
V DD
V I/O
I O(LEDn)
I SS
P tot
T stg
T amb
Parameter
supply voltage
voltage on an input/output pin
output current on pin LEDn
ground supply current
total power dissipation
storage temperature
ambient temperature
Conditions
operating
Min
? 0.5
V SS ? 0.5
-
-
-
? 65
? 40
Max
+6.0
5.5
25
100
400
+150
+85
Unit
V
V
mA
mA
mW
° C
° C
PCA9633_5
? NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 05 — 25 July 2008
27 of 43
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
PCA9634D,118 IC LED DRIVER RGBA 20-SOIC
PCA9635PW/S911,118 IC LED DRIVER RGBA 28-TSSOP
PCA9685PW,118 IC LED DRIVER RGBA 28-TSSOP
PCA9922PW,118 IC LED DRIVER LINEAR 16-TSSOP
PCA9955TW,118 IC LED DRVR CONST CURR
PCF85102C-2P/03,11 IC EEPROM 2KBIT 100KHZ 8DIP
PCF85103C-2T/00,11 IC EEPROM 2KBIT 100KHZ 8SOIC
PCF8570T/F5,512 IC SRAM 2KBIT 100KHZ 8SOIC
相关代理商/技术参数
PCA9633BS-T 功能描述:LED照明驱动器 4BIT I2C FM+ TP LED CON RST OE 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
PCA9633D16 功能描述:LED照明驱动器 LED DRVR 4BIT I2C 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
PCA9633D16,112 功能描述:LED照明驱动器 LED DRVR 4BIT I2C 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
PCA9633D16,118 功能描述:LED照明驱动器 4BIT I2C FM+ TP LED CON RST OE 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
PCA9633DEMO 功能描述:开发板和工具包 - 8051 Brd Philips PCA9633 RoHS:否 制造商:Silicon Labs 产品:Development Kits 工具用于评估:C8051F960, Si7005 核心: 接口类型:USB 工作电源电压:
PCA9633DP1,118 功能描述:LED照明驱动器 LED DRVR 4BIT I2C 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
PCA9633DP1,118-CUT TAPE 制造商:NXP 功能描述:PCA9633 Series 25 mA 5.5 V 1 MHz SMT 8-bit I2C-Bus LED Driver - TSSOP-8
PCA9633DP2,118 功能描述:LED照明驱动器 4BIT I2C FM+ TP LED CON RST OE 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