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| 型号： | PCA9922PW,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 9/27页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER LINEAR 16-TSSOP |
| 产品培训模块： | LED Controllers |
| 标准包装： | 1 |
| 恒定电流： | 是 |
| 输出数： | 8 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 通用 |
| 类型 - 次要： | 颜色 |
| 频率： | 25MHz |
| 电源电压： | 3.3 V ~ 5.5 V |
| 输出电压： | 5.5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 845 (CN2011-ZH PDF) |
| 其它名称： | 568-4775-6 |
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NXP Semiconductors
PCA9922
8-channel constant current LED driver with output error detection
7.2.4 Setting the outputs to test
Before the Capture Fault sequence may be performed, the outputs must be set up. A logic
HIGH must be sent to the output control register for all eight bits. This is done after the
Enter Error Detect sequence is performed as a normal data load sequence as seen in
Figure 5 . Please note that this process is completely destructive to the data that is stored
in the output control register (and the LED[7:0] pins). The output control register will have
to be restored to its proper values by the user after the error detect sequence has been
completed.
7.2.5 Capturing the fault/output error data
The Capture Fault/Error Data sequence can only follow the Enter Error Detect sequence.
If the Error Detect sequence has not occurred, this sequence will be treated as a normal
operational sequence. Once the Capture Fault sequence has occurred, an Exit Error
Detect sequence should be performed. There can be no more Capture Sequences until
another Enter Error Detect sequence has occurred.
The Capture Fault Sequence consists of holding OE LOW for no less than 3 clocks (CLK)
and for a minimum of 2 μ s, whichever is longer. During this period of time, the shift register
is being loaded with the fault status. As such, data presented to the device via SDI will not
be captured. Bit 7 of the f aul t data will be present on SDO by the first falling edge CLK
after the user de-asserts OE for this cycle. An error condition is output as a 1 (HIGH bit),
and a 0 (LOW bit) designates a normal status. Timing for this sequence is shown in
Figure 7 .
CLK
LE
OE
OE = 1'b0 for minimum of 3 clocks
or 2 μ s, whichever is longer
SDO
previous serial data
fault data MSB
resume shift
with fault data
002aad205
Fig 7.
Timing for ‘Capture Fault Mode’ command
PCA9922
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 6 April 2011
? NXP B.V. 2011. All rights reserved.
9 of 27
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCA9952TW,118 | 功能描述:LED照明驱动器 16-ch Fm+ I2C-bus 57 mA LED driver 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 |
| PCA9952TW/Q900,118 | 制造商:NXP Semiconductors 功能描述: 制造商:NXP Semiconductors 功能描述:IC LED DVR 16CH I2C CC 28HTSSOP 制造商:NXP Semiconductors 功能描述:LED Lighting Drivers 16-channel Fm+ I2C- bus 57 mA LED driver |
| PCA9955ATW/Q900J | 功能描述:LED 驱动器 IC 16 输出 线性 I2C 调光 57mA 28-HTSSOP 制造商:nxp semiconductors 系列:汽车级，AEC-Q100 包装:剪切带（CT） 零件状态:过期 类型:线性 拓扑:- 内部开关:是 输出数:16 电压 - 供电（最低）:3V 电压 -?供电（最高）:5.5V 电压 - 输出:20V 电流 - 输出/通道:57mA 频率:8MHz 调光:I2C 应用:背光 工作温度:-40°C ~ 85°C（TA） 安装类型:表面贴装 封装/外壳:28-SOIC（0.173"，4.40mm 宽）裸露焊盘 供应商器件封装:28-HTSSOP 标准包装:1 |
| PCA9955ATWJ | 功能描述:LED 驱动器 IC 16 输出 线性 I2C 调光 57mA 28-HTSSOP 制造商:nxp semiconductors 系列:- 包装:剪切带（CT） 零件状态:过期 类型:线性 拓扑:- 内部开关:是 输出数:16 电压 - 供电（最低）:3V 电压 -?供电（最高）:5.5V 电压 - 输出:20V 电流 - 输出/通道:57mA 频率:8MHz 调光:I2C 应用:背光 工作温度:-40°C ~ 85°C（TA） 安装类型:表面贴装 封装/外壳:28-SOIC（0.173"，4.40mm 宽）裸露焊盘 供应商器件封装:28-HTSSOP 标准包装:1 |
| PCA9955BTW/Q900J | 功能描述:LED 驱动器 IC 16 输出 线性 65mA 28-HTSSOP 制造商:nxp semiconductors 系列:- 包装:剪切带（CT） 零件状态:有效 类型:线性 拓扑:- 内部开关:是 输出数:16 电压 - 供电（最低）:3V 电压 -?供电（最高）:5.5V 电压 - 输出:- 电流 - 输出/通道:65mA 频率:- 调光:- 应用:汽车级，背光 工作温度:-40°C ~ 85°C（TA） 安装类型:表面贴装 封装/外壳:28-SOIC（0.173"，4.40mm 宽）裸露焊盘 供应商器件封装:28-HTSSOP 标准包装:1 |
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