Datasheet > MAX25503

MAX25503

更新时间： 2024-11-10 17:01:55

品牌	Logo	应用领域
亚德诺 - ADI		/
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2页	197K
描述
4 x 24 Automotive LED Matrix Driver

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中文翻译

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MAX25503 数据手册

MAX25503

4 x 24 Automotive LED Matrix

Driver

General Description

Benefits and Features

The MAX25503 is a 4 x 24-channel modular matrix

driver. 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.

•

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

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.

•

24 Row Drivers

• Up to 65mA Peak Output Current

• Very Narrow Minimum Current Pulse for

Maximum Dimming Ratio

The device is highly flexible due to its programmability

using the SPI interface. Among the programmable

parameters are the LED current, individual PWM

settings, and multiplex ratio.

• Optional Ghosting Elimination

Extensive Diagnostics

• Shorted or Open LEDs

• Programmable V

Overvoltage Detection with

LED

The high-speed interface can be used to control up to 16

devices.

Flag

• Shorted SNK_ or SRC_ to GND

• ISET out of Range

• Thermal Warning/Shutdown

The MAX25503 is available in TQFN and TSSOP

packages and operates in the -40°C to +125°C

temperature range.

•

FB Output to Control External DC-DC Converter

High-Speed SPI Interface

SYNC

Synchronization Input (Programmable Active

Applications

High/Low)

48-Lead TQFN and TSSOP Packages

AEC-Q100 Grade 1

•

Central Information Displays

Instrument Clusters

Interior Lighting

•

Exterior Rear Lighting

Ordering Information appears at end of data sheet.

19-101770; Rev 0; 12/23

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