Datasheet > MAX16923

MAX16923

更新时间： 2024-09-16 14:58:15

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
3页	182K
描述
汽车应用4通道输出显示屏电源方案，带看门狗

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中文翻译

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MAX16923 数据手册

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MAX16923

Automotive 4-Output Display Power Solution

with Watchdog

General Description

Benefits and Features

The MAX16923 is a 4-channel power-management IC de-

signed to accommodate the main rails used in modern

automotive TFT displays. The MAX16923 and the

MAX20069 TFT power supply and LED backlight driver

combine to provide a two-chip solution to all automotive

display power supply requirements.

● High Integration

• Complete Display Power Solution from Automotive

Battery

• One High-Voltage 2.1A Buck Converter (5V or

3.3V)

• One High-Voltage 100mA Low-I Linear Regulator

(3.3V)

The MAX16923 integrates a high-voltage buck converter

that transforms battery voltages into a 5V or 3.3V interme-

diate rail. In addition, a high-voltage, always-on, low qui-

escent current linear regulator supplies power at 3.3V.

• One Low-Voltage 1.6A Buck Converter (3.3V, 1.8V,

1.2V, or 1.1V)

• One Low-Voltage Linear Regulator (3.3V, 1.8V,

1.5V, or 1.0V)

The low-voltage section consists of a fully-integrated DC/

DC converter and an LDO running off the intermediate rail.

Section output power is available in several low-voltage

combinations (see the Ordering Information table). In ad-

dition, an integrated watchdog timer guards against run-

away code.

• MAX16923GTPB: 75mA

• MAX16923GTPC/MAX16923GTPE: 175mA

• All other variants: 180mA

• Power-Good Outputs

● Integrated Watchdog Timer

● Robust and Low EMI

A single START control pin initiates the start-up sequence,

thereby simplifying device control. The MAX16923's ex-

ternal pMOSFET control block allows battery voltage to

be switched to a downstream device, such as a backlight

boost converter.

● • Programmable Switching Frequency

• Internal Spread Spectrum Oscillator

• Slew-Rate Controlled Switching

• Thermal Shutdown Protection

● Compact TQFN20 4mm x 4mm Package

The MAX16923 is available in a TQFN package and oper-

ates in the -40°C to 105°C temperature range.

Ordering Information appears at end of datasheet.

Applications

Simplified Block Diagram

● Infotainment Displays

● Central Information Displays

● Instrument Clusters

BATT PGB WDI WAKE

BSTB

LDO1

HV LDO

PG1

HIGH-

VOLTAGE

BUCK

WATCH

-DOG

FIN

PGATE

BIAS

OSC.

PGATE

CONTROL

LOW-

VOLTAGE

BUCK

LDO2

LV LDO

LXC

PGND

TEMP

SENSOR

SEQUENCING

CONTROL

V33

PGOOD

START

MAX16923

GND

19-100619; Rev 3; 10/19

12 3

中文翻译

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与MAX16923相关器件

型号	品牌	获取价格	描述	数据表
MAX16923GTPAV	MAXIM	获取价格	Automotive 4-Output Display Power Solution with Watchdog
MAX16923GTPBV	MAXIM	获取价格	Automotive 4-Output Display Power Solution with Watchdog
MAX16923GTPCV	MAXIM	获取价格	Automotive 4-Output Display Power Solution with Watchdog
MAX16923GTPDV	MAXIM	获取价格	Automotive 4-Output Display Power Solution with Watchdog
MAX16923GTPEV	MAXIM	获取价格	Automotive 4-Output Display Power Solution with Watchdog
MAX16923GTPFV	MAXIM	获取价格	Automotive 4-Output Display Power Solution with Watchdog
MAX16923GTPGV	MAXIM	获取价格	Automotive 4-Output Display Power Solution with Watchdog
MAX16926	ADI	获取价格	具有看门狗功能的4路输出汽车显示屏电源解决方案
MAX16928	MAXIM	获取价格	Automotive TFT-LCD Power Supply with Boost Converter and Gate Voltage Regulators
MAX16928	ADI	获取价格	具有升压转换器和栅极稳压器的汽车TFT-LCD电源

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