Datasheet > MAX1874ETE+T

MAX1874ETE+T

更新时间： 2024-01-16 11:52:16

品牌	Logo	应用领域
美信 - MAXIM		信息通信管理
页数	文件大小	规格书
17页	899K
描述
Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, MO-220-WHHB, TQFN-16

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技术参数
数据手册
替代型号

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MAX1874ETE+T 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFN
包装说明：	HVQCCN, LCC16,.2SQ,32	针数：	16
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.14
可调阈值：	NO	模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：	S-XQCC-N16	JESD-609代码：	e3
长度：	5 mm	湿度敏感等级：	1
信道数量：	1	功能数量：	1
端子数量：	16	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	UNSPECIFIED
封装代码：	HVQCCN	封装等效代码：	LCC16,.2SQ,32
封装形状：	SQUARE	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	260	电源：	5 V
认证状态：	Not Qualified	座面最大高度：	0.8 mm
子类别：	Power Management Circuits	最大供电电流 (Isup)：	6 mA
最大供电电压 (Vsup)：	6 V	最小供电电压 (Vsup)：	4.35 V
标称供电电压 (Vsup)：	5 V	表面贴装：	YES
技术：	BICMOS	温度等级：	INDUSTRIAL
端子面层：	Matte Tin (Sn)	端子形式：	NO LEAD
端子节距：	0.8 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	30	宽度：	5 mm
Base Number Matches：	1

MAX1874ETE+T 数据手册

19-2912; Rev 1; 2/07

Dual-Input, USB/AC Adapter, 1-Cell

Li+ Charger with OVP and Thermal Regulation

General Description

Features

The MAX1874 charges a single-cell Li+ battery from

both USB and AC adapter sources. It also includes bat-

tery-to-input power switchover, so the system can be

powered directly from the power source rather than

from the battery.

♦ Charge from USB or AC Adapter

♦ Automatic Switchover to AC Adapter

♦ Thermal Limiting Simplifies Board Design

♦ Small, High-Power 16-Pin Thin QFN Package

♦ Input Protection Up to 18V

In its simplest application, the MAX1874 needs no

external MOSFET or diodes, and accepts input volt-

ages up to 6.5V; however, DC input overvoltage protec-

tion up to 18V can be added with a single SOT PFET.

♦ Soft-Start

♦ Automatic Battery-to-Input Load Switch

On-chip thermal limiting simplifies printed circuit board

(PCB) layout and allows optimum charging rate without

the thermal limits imposed by worst-case battery and

input voltage. When the MAX1874 thermal limit is

reached, the charger does not shut down but simply

reduces charging current.

Ordering Information

PIN-

PACKAGE

PKG

CODE

PART

TEMP RANGE

Ambient or battery temperature can be monitored with

an external thermistor. When the temperature is out of

range, charging pauses.

16 Thin QFN

5mm x 5mm

MAX1874ETE

-40°C to +85°C

T1655-2

Other features include a CHG output to indicate when

battery current tapers below a predetermined level. DC

power-OK (DCOK), USB power-OK (UOK), and power-

on (PON) outputs indicate when valid power is present.

These outputs drive logic or power-selection MOSFETs

to disconnect the charging sources from the load and

to protect the MAX1874 from overvoltage.

Typical Operating Circuit

DC INPUT

PON

MAX1874

The MAX1874 contains no logic for communication with

the USB host. It must receive instructions from a local

microcontroller. The MAX1874 is available in a 16-pin

5mm ✕ 5mm thin QFN package and operates over the

-40°C to +85°C temperature range.

DCOK

DCLV

BATT

Li+

CELL

UOK

USB

Applications

CHG

USEL

USB INPUT

TO REF

PDAs

Cell Phones

500mA

100mA

Wireless Appliances Digital Cameras

DCI

Pin Configuration

REGULATOR

REF

TOP VIEW

16 15 14 13

THRM

GND

DCLV

12 USB

11 BYP

10 PGND

CHG

NTC

THERMISTOR

MAX1874

BYP

PGND

USEL

REF

THIN QFN

5mm x 5mm

Functional Diagram appears at the end of the data sheet.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...17

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MAX1874ETE+T 替代型号

型号	品牌	替代类型	描述	数据表
MAX1874ETE	MAXIM	完全替代	Dual-Input, USB/AC Adapter, 1-Cell Li+ Charger with OVP and Thermal Regulation
MAX1874ETE-T	MAXIM	功能相似	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, MO-220WH

与MAX1874ETE+T相关器件

型号	品牌	获取价格	描述	数据表
MAX1874ETE-T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, 5 X 5 MM, 0.80 MM HEIGHT, MO-220WH
MAX1874EVKIT	MAXIM	获取价格	MAX1874 Evaluation Kit
MAX1875	MAXIM	获取价格	Dual 180∑ Out-of-Phase PWM Step- Down Control
MAX1875	ADI	获取价格	双路、180°异相、PWM降压型控制器，带有POR
MAX1875AEEG	MAXIM	获取价格	Dual 180∑ Out-of-Phase Buck Controllers with
MAX1875AEEG+	MAXIM	获取价格	Dual Switching Controller, Voltage-mode, 660kHz Switching Freq-Max, BICMOS, PDSO24, 0.150
MAX1875AEEG+T	MAXIM	获取价格	Dual Switching Controller, Voltage-mode, 660kHz Switching Freq-Max, BICMOS, PDSO24, 0.150
MAX1875AEEG-T	MAXIM	获取价格	Dual Switching Controller, Voltage-mode, 660kHz Switching Freq-Max, BICMOS, PDSO24, 0.150
MAX1875EEG	MAXIM	获取价格	Dual 180∑ Out-of-Phase PWM Step- Down Control
MAX1875EEG+	MAXIM	获取价格	Dual Switching Controller, Voltage-mode, 0.05A, 600kHz Switching Freq-Max, BICMOS, PDSO24,

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