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MAX1640C中文资料美信数据手册PDF规格书

PDF无图
厂商型号

MAX1640C

功能描述

Adjustable-Output, Switch-Mode Current Sources with Synchronous Rectifier

文件大小

116.02 Kbytes

页面数量

11

生产厂商

Maxim

中文名称

美信

网址

网址

数据手册

下载地址一下载地址二到原厂下载

更新时间

2025-10-5 16:10:00

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MAX1640C规格书详情

General Description

The MAX1640/MAX1641 CMOS, adjustable-output, switch-mode current sources operate from a +5.5V to +26V input, and are ideal for microprocessor-controlled battery chargers. Charging current, maximum output voltage, and pulse-trickle charge are programmed with external resistors. Programming the off-time modifies the switching frequency, suppressing undesirable harmonics in noise-sensitive circuits. The MAX1640’s high side current sensing allows the load to connect directly to ground, eliminating ground-potential errors. The MAX1641 incorporates a low-side current sense.

The MAX1640/MAX1641 step-down pulse-width-modulation (PWM) controllers use an external P-channel MOSFET switch and an optional, external N-channel MOSFET synchronous rectifier for increased efficiency. An internal low-dropout linear regulator provides power for the internal reference and circuitry as well as the gate drive for the N-channel synchronous rectifier. The MAX1640/MAX1641 are available in space-saving, 16-pin narrow QSOP packages.

特性 Features

♦ 95 Efficiency

♦ +5.5V to +26V Input Supply Range

♦ 2V to 24V Adjustable-Output Voltage Range

♦ 100 Maximum Duty Cycle (Low Dropout)

♦ Up to 500kHz PWM Operation

♦ Optional Synchronous Rectifier

♦ 16-Pin QSOP Package

♦ Current-Sense Accuracy: 2 (MAX1641) 5.3 (MAX1640)

Applications

Battery-Powered Equipment

Laptop, Notebook, and Palmtop Computers

Handy Terminals

Portable Consumer Products

Cordless Phones

Cellular Phones

PCS Phones

Backup Battery Charger

产品属性

  • 型号:

    MAX1640C

  • 功能描述:

    电流型 PWM 控制器

  • RoHS:

  • 制造商:

    Texas Instruments

  • 开关频率:

    27 KHz

  • 工作电源电压:

    6 V to 15 V

  • 工作电源电流:

    1.5 mA

  • 输出端数量:

    1

  • 最大工作温度:

    + 105 C

  • 安装风格:

    SMD/SMT

  • 封装/箱体:

    TSSOP-14

供应商 型号 品牌 批号 封装 库存 备注 价格
MAXIM
22+
SOP
5000
原装现货库存.价格优势!!
询价
MAXIM/美信
23+
QSOP16
32732
原装正品代理渠道价格优势
询价
Maxim(美信)
23+
标准封装
6000
原厂原装现货订货价格优势终端BOM表可配单提供样品
询价
MAXIM
17+
SOP16
6200
100%原装正品现货
询价
MAX
23+
SOP
5000
原装正品,假一罚十
询价
MAXIM
24+
SSOP
1891
询价
MAXIM/美信
22+
SSOP
17800
原装正品
询价
专营MAXIM
24+
SSOP
9600
原装现货,优势供应,支持实单!
询价
MAX
18+
SOP8
85600
保证进口原装可开17%增值税发票
询价
MAXIM
22+
SSOP
3000
原装正品,支持实单
询价