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特性
- Flexible Configuration
- Programmable Multiplex Ratio Between 4:1 and 1:1
- Integrated Column Drivers
- Programmable Dither for Enhanced Resolution
- Optional Individual Programmable Delays
- Optional Pseudorandom Spread Spectrum on Each Output
- 24 Row Drivers
- Up to 65mA Peak Output Current
- Very Narrow Minimum Current Pulse for Maximum Dimming Ratio
- Optional Ghosting Elimination
- Extensive Diagnostics Supporting ASIL B
- Shorted or Open LEDs
- Programmable VLED Overvoltage Detection with Flag
- Adjacent SNK_ to SNK_ Short Detection
- Shorted SNK_ or SRC_ to GND
- ISET Out of Range
- Internal Clock Out-of-Range Detection
- Bandgap Reference Out-of-Range
- CRC on Internal Memory Contents
- Undervoltage/Overvoltage Detection on AllSupplies
- Thermal Warning/Shutdown
- FB Output to Control External DC-DC Converter
- SPI Interface Optionally with CRC (MAX25505)
- VSYNC Synchronization Input (ProgrammableActive-High/Low)
- 48-Lead TQFN and TSSOP Packages
- AEC-Q100 Grade 1Ordering
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The MAX25504/MAX25505 are 4 x 24-channel modular matrix drivers. The integrated current outputs can sink up to 65mA LED current each. The source drive pins provide current to the columns of the matrix on a multiplexed basis. Device power comes from an external 3.3V or 5V supply, while the LED current-sink outputs can operate at up to 14V.
A feedback output pin (FB) is provided to control an external DC-DC converter so that voltage headroom can be optimized and the overall system power dissipation reduced.
The devices are highly flexible due to their programmability using the SPI interface. Among the programmable parameters are the LED current, individual PWM settings, and multiplex ratio.
The devices feature a high-speed interface for controlling up to 16 devices in a daisy-chain configuration. In addition, they include multiple diagnostic features to aid in the building of ASIL B systems.
The MAX25504/MAX25505 are available in TQFN and TSSOP packages and operate in the -40°C to +125°C temperature range.
APPLICATIONS
- Central Information Displays
- Instrument Clusters
- Interior Lighting
- Exterior Rear Lighting
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在下面提交您的问题，我们将从 ADI 的知识库中给出最佳答案:
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您可以在其他地方找到帮助
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产品技术资料帮助
ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许，也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。
参考资料
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| 产品型号 | 引脚/封装图-中文版 | 文档 | CAD 符号，脚注和 3D模型 |
|---|---|---|---|
| MAX25505ATMA/V+ |
48-LFCSP-7X7X0.75
|
|
|
| MAX25505ATMA/V+T |
48-LFCSP-7X7X0.75
|
|
|
| MAX25505AUMA/V+ |
48-TSSOP_6.1_EP-6.1_MM
|
|
|
| MAX25505AUMA/V+T |
48-TSSOP_6.1_EP-6.1_MM
|
|
- MAX25505ATMA/V+
- 引脚/封装图-中文版
-
48-LFCSP-7X7X0.75
- 文档
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD 符号，脚注和 3D模型
-
Ultra Librarian
-
SamacSys
- MAX25505ATMA/V+T
- 引脚/封装图-中文版
-
48-LFCSP-7X7X0.75
- 文档
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD 符号，脚注和 3D模型
-
Ultra Librarian
-
SamacSys
- MAX25505AUMA/V+
- 引脚/封装图-中文版
-
48-TSSOP_6.1_EP-6.1_MM
- 文档
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD 符号，脚注和 3D模型
-
Ultra Librarian
-
SamacSys
- MAX25505AUMA/V+T
- 引脚/封装图-中文版
-
48-TSSOP_6.1_EP-6.1_MM
- 文档
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD 符号，脚注和 3D模型
-
Ultra Librarian
-
SamacSys
软件和型号相关生态系统
工具及仿真模型 1
IBIS 模型 1
IBIS 模型
