Datasheet > MAX25608

MAX25608

更新时间： 2024-11-22 14:58:07

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
66页	749K
描述
Twelve Switch High Brightness LED Matrix Manager for Automotive Front Lights

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中文翻译

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MAX25608 数据手册

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12-Switch, High-Brightness LED Matrix

Manager for Automotive Front Lights

MAX25608

General Description

Benefits and Features

The MAX25608/MAX25608B/MAX25608C 12-switch ma-

trix manager ICs for automotive lighting applications in-

clude a 12-switch array for bypassing individual LEDs in a

single- or dual-string application. They feature 12 individu-

ally controlled n-channel MOSFET switches rated for 14V

with an on-resistance of 0.06Ω. A single current source

can be used to power all of the LEDs connected in se-

ries. Individual LEDs can be dimmed by turning on and

off the bypass switches across each LED. The devices

can also be configured in dual-string applications with six

switches in series per string. Each switch can be connect-

ed across one, two, or three LEDs in series. These de-

vices also allow for parallel connection of two switches to

bypass high-current LEDs. The ICs also include an inter-

nal charge pump that provides power for the gate drive for

the LED bypass switches.

● Automotive Ready: AEC-Q100 Qualified

● Flexible Configuration

• Up to 12 Switches in Series for Single String

• Two Sub Strings of Six Series Switches per String

● Robust Serial Interface

• Multidrop UART Communication Interface

• Up to 16 Addressable Devices

• Compatible with CAN Physical Layer (MAX25608B)

● Optimal PWM Dimming Arrangement Provides

Excellent Dimming Performance

• Programmable 12-Bit PWM Dimming

• Fade Transition Between PWM Dimming States

• Internal or External Clock for PWM Dimming

• Programmable Slew Rate for EMI Control

● Protection Features and Package Improve Reliability

• Open-LED Protection

The MAX25608/MAX25608B/MAX25608C feature a serial

interface (UART) for serial communication. The

MAX25608/MAX25608C can be used in full-duplex appli-

cations, and the MAX25608B can be used in half-duplex

applications, such as with CAN transceivers. The

MAX25608 has spread spectrum enabled on the charge

pump clock, and the MAX25608B/MAX25608C have

spread spectrum disabled on the charge pump clock.

Each switch can be turned fully on, fully off, or dimmed

with or without fade transitions through the serial interface.

The ICs feature open-LED protection as well as open- and

short-LED fault reporting through the serial interface. The

devices are available in a 28-pin TSSOP package with ex-

posed pad.

• NTC Temperature Monitor

• Programmable Open- and Short-LED Threshold

• Open and Shorted-LED Fault Reporting

• Thermally Enhanced, 28-Pin TSSOP-EP

Simplified Block Diagram

CAN

LED x 12

XCVR

BAT

LED

DRIVER

DR12 DR11 DR10

FLT

DR1 SRC1

MCU

MAX25608B

CAN

XCVR

CAN

XCVR

CLKOUT

CLKIN

RADDR

DD CPP CPN GND EP RGRADE RTEMP

BAT

NTC

Applications

● Automotive Matrix LED Systems

● Adaptive Drive Beam Lights

19-101169; Rev 6; 11/23

Ordering Information appears at end of data sheet.

12 3 4 5 6 7...66

中文翻译

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