- 您现在的位置：买卖IC网 > Datasheet目录350 > PCA9635PW/S911,118 (NXP Semiconductors)IC LED DRIVER RGBA 28-TSSOP Datasheet资料下载
参数资料
| 型号： | PCA9635PW/S911,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 16/35页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER RGBA 28-TSSOP |
| 标准包装： | 2,500 |
| 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： | RGBA |
| 频率： | 100kHz ~ 1MHz |
| 电源电压： | 2.3 V ~ 5.5 V |
| 输出电压： | 5.5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 28-TSSOP |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | 935285521118 PCA9635PW/S911-T PCA9635PW/S911-T-ND |
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页当前第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页第30页第31页第32页第33页第34页第35页
NXP Semiconductors
PCA9635
16-bit Fm+ I 2 C-bus LED driver
7.6 Software reset
The Software Reset Call (SWRST Call) allows all the devices in the I 2 C-bus to be reset to
the power-up state value through a speci?c formatted I 2 C-bus command. To be performed
correctly, it implies that the I 2 C-bus is functional and that there is no device hanging the
bus.
The SWRST Call function is de?ned as the following:
1. A START command is sent by the I 2 C-bus master.
2. The reserved SWRST I 2 C-bus address ‘0000 011’ with the R/W bit set to ‘0’ (write) is
sent by the I 2 C-bus master.
3. The PCA9635 device(s) acknowledge(s) after seeing the SWRST Call address
‘0000 0110’ (06h) only. If the R/W bit is set to ‘1’ (read), no acknowledge is returned to
the I 2 C-bus master.
4. Once the SWRST Call address has been sent and acknowledged, the master sends
2 bytes with 2 speci?c values (SWRST data byte 1 and byte 2):
a. Byte 1 = A5h: the PCA9635 acknowledges this value only. If byte 1 is not equal to
A5h, the PCA9635 does not acknowledge it.
b. Byte 2 = 5Ah: the PCA9635 acknowledges this value only. If byte 2 is not equal to
5Ah, then the PCA9635 does not acknowledge it.
If more than 2 bytes of data are sent, the PCA9635 does not acknowledge any more.
5. Once the right 2 bytes (SWRST data byte 1 and byte 2 only) have been sent and
correctly acknowledged, the master sends a STOP command to end the SWRST Call:
the PCA9635 then resets to the default value (power-up value) and is ready to be
addressed again within the speci?ed bus free time (t BUF ).
The I 2 C-bus master must interpret a non-acknowledge from the PCA9635 (at any time) as
a ‘SWRST Call Abort’. The PCA9635 does not initiate a reset of its registers. This
happens only when the format of the SWRST Call sequence is not correct.
7.7 Using the PCA9635 with and without external drivers
The PCA9635 LED output drivers are 5.5 V only tolerant and can sink up to 25 mA at 5 V.
If the device needs to drive LEDs to a higher voltage and/or higher current, use of an
external driver is required.
? INVRT bit (MODE2 register) can be used to keep the LED PWM control ?rmware the
same (PWMx and GRPPWM values directly calculated from their respective formulas
and the LED output state determined by LEDOUT register value) independently of the
type of external driver. This bit allows LED output polarity inversion/non-inversion only
when OE = 0.
? OUTDRV bit (MODE2 register) allows minimizing the amount of external components
required to control the external driver (N-type or P-type device).
PCA9635_7
? NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 07 — 16 July 2009
16 of 35
相关PDF资料 |
PDF描述 |
|---|---|
| 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 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PCA9635PW-T | 功能描述:LED照明驱动器 8BIT 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 |
| PCA9641BSHP | 功能描述:Buffer, Multiplexer 2 Channel 16-HVQFN (3x3) 制造商:nxp semiconductors 系列:- 包装:剪切带（CT） 零件状态:有效 类型:缓冲器，多路复用器 应用:I2C 输入:2 线式总线 输出:2 线式总线 数据速率（最大值）:- 通道数:2 延迟时间:- 信号调节:- 电容 - 输入:6pF 电压 - 电源:2.3 V ~ 3.6 V 电流 - 电源:100mA 工作温度:-40°C ~ 85°C 封装/外壳:16-VFQFN 裸露焊盘 供应商器件封装:16-HVQFN（3x3） 标准包装:1 |
| PCA9641PWJ | 功能描述:Buffer, Multiplexer 2 Channel 16-TSSOP 制造商:nxp semiconductors 系列:- 包装:剪切带（CT） 零件状态:有效 类型:缓冲器，多路复用器 应用:I2C 输入:2 线式总线 输出:2 线式总线 数据速率（最大值）:- 通道数:2 延迟时间:- 信号调节:- 电容 - 输入:6pF 电压 - 电源:2.3 V ~ 3.6 V 电流 - 电源:100mA 工作温度:-40°C ~ 85°C 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商器件封装:16-TSSOP 标准包装:1 |
| PCA9646D,118 | 功能描述:数字总线开关 IC BUFFERED 4CH 2-WIRE BUS SW RoHS:否 制造商:Texas Instruments 开关数量:24 传播延迟时间:0.25 ns 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:TSSOP-56 封装:Reel |
| PCA9646PW,118 | 功能描述:数字总线开关 IC Buffered 4-Channel 2-Wire Bus Switch RoHS:否 制造商:Texas Instruments 开关数量:24 传播延迟时间:0.25 ns 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:TSSOP-56 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。