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开关模式锂离子电池充电器

精度高达±0.75%的Li+电池充电器,提供4A充电电流时不会出现发热现象

产品详情

主要特征

应用/用途

  • 蜂窝电话
  • 台式摇篮架充电器
  • 手持式仪表(PDA、掌上电脑)
  • Li+电池组
  • 笔记本电脑
Parametric specs for Battery Chargers
Charging VIN (V) (max) 24
Max. ICHG (A) 4
Cell Chemistry Li-Ion
Li-Polymer
# Lithium Ion Cells 1
2
3
4
Protected VIN (V) (max) 24
Charger (V) 18
Oper. Temp. (°C) -40 to +85
Package/Pins SSOP/20
Budgetary
Price (See Notes)
$5.31 @1k
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简化框图

MAX745:典型工作电路 MAX745:典型工作电路 Zoom icon

技术文档

设计与制作发展历程

单击下面的任何标题以查看详细信息页面(如果有)。

描述

The MAX745 evaluation kit (EV kit) is an assembled and tested PC board that implements a step-down, switching power supply designed for charging lithium-ion (Li- Ion) batteries. The output voltage can be set for one to four cells. The cell voltage can be set between 4.0V and 4.4V, with 0.75% accuracy, using standard 1% resistors. Two LEDs indicate the charging status.

The MAX745 should be used to charge only Li-Ion battery packs. To charge other types of batteries, use the MAX1648 or the MAX712/MAX713. To charge SMBus™ smart-battery packs, use the MAX1645/MAX1647/ MAX1667.

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特征

  • Charges One to Four Li-Ion Cells
  • Low Heat/High Efficiency
  • 300kHz PWM Operation
  • 0.75% Overall Accuracy over Temperature
  • 6V to 24V Input Voltage Range
  • Proven PC Board Layout
  • Fully Assembled and Tested

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支持与训练

Search our knowledge base for answers to your technical questions.

过滤搜索

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal.

参量

Parametric specs for Battery Chargers
Charging VIN (V) (max) 24
Max. ICHG (A) 4
Cell Chemistry Li-Ion
Li-Polymer
# Lithium Ion Cells 1
2
3
4
Protected VIN (V) (max) 24
Charger (V) 18
Oper. Temp. (°C) -40 to +85
Package/Pins SSOP/20
Budgetary
Price (See Notes)
$5.31 @1k

主要特征

应用/用途

  • 蜂窝电话
  • 台式摇篮架充电器
  • 手持式仪表(PDA、掌上电脑)
  • Li+电池组
  • 笔记本电脑

描述

简化框图

MAX745:典型工作电路 MAX745:典型工作电路 Zoom icon

技术文档

支持与训练

Search our knowledge base for answers to your technical questions.

过滤搜索

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal.