回到顶部

双通道CardBus和PCMCIA电源开关,带有SMBus串行接口

可为2个卡槽处理1A电流,无需外部元件,微型SSOP封装

产品详情

主要特征

简化框图

Technical Docs

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心

主要特征

  • Supports Two CardBus Sockets
  • 1A, 0.08Ω Max VY VCC Switch (MAX1601 only)
  • 1A, 0.14Ω Max VX VCC Switch
  • Soft Switching for Low Inrush Surge Current
  • Overcurrent Protection
  • Overcurrent/Thermal-Fault Flag Output
  • Thermal Shutdown at Tj = +150°C
  • Independent Internal Charge Pumps
  • Break-Before-Make Switching Action
  • 10µA Max Standby Supply Current
  • 5V and 12V Not Required for Low-RDS(ON) 3.3V Switching
  • Complies with PCMCIA 3V/5V Switching Specifications
  • Super-Small, 28-Pin SSOP Package (0.2in. or 5mm wide)
  • System Management Bus (SMBus) Serial Interface

应用/用途

  • 计算机:台式机、工作站和服务器
  • 数据记录
  • 数码相机
  • 坞站
  • 手持终端
  • 笔记本电脑
  • PCMCIA读/写驱动器
  • 打印机

描述

The MAX1601/MAX1604 DC power-switching ICs contain a network of low-resistance MOSFET switches that deliver selectable VCC and VP-P voltages to two CardBus or PC Card host sockets. Key features include ultra-low-resistance switches, small packaging, soft-switching action, and compliance with PCMCIA specifications for 3V/5V switching. 3.3V-only power switching for fast, 32-bit CardBus applications is supported in two ways: stiff, low-resistance 3.3V switches allow high 3.3V load currents (up to 1A); and completely independent internal charge pumps let the 3.3V switch operate normally, even if the +5V and +12V supplies are disconnected or turned off to conserve power. The internal charge pumps are regulating types that draw reduced input current when the VCC switches are static. Also, power consumption is automatically reduced to 10µA max when the switches are programmed to high-Z or GND states over the serial interface, unlike other solutions that may require a separate shutdown-control input.

Other key features include guaranteed specifications for output current limit level, and guaranteed specifications for output rise/fall times (in compliance with PCMCIA specifications). Reliability is enhanced by thermal-overload protection, accurate current limiting, an overcurrent-fault flag output, undervoltage lockout, and extra ESD protection at the VCC/VP-P outputs. The SMBus™ serial interface is flexible, and can tolerate logic input levels in excess of the positive supply rail.

The MAX1604 and MAX1601 are identical, except for the MAX1604's VY switch, which has roughly three-times the on-resistance (typically 140mΩ). The MAX1601/MAX1604 fit two complete CardBus/PCMCIA switches into a space-saving, narrow (0.2in. or 5mm wide) SSOP package.

简化框图

MAX1601、MAX1604引脚配置 MAX1601、MAX1604:引脚配置 Zoom icon

Technical Docs

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心