LTC1623 - SMBus Dual High-SideSwitch Controller

The LTC®1623 SMBus switch controller is a slave device that controls two high-side N-channel MOSFETs on either the SMBus or the I²C bus. The LTC1623 operates with an input voltage from 2.7V to 5.5V with a low standby current of 14µA (at 3.3V). In accordance with the SMBus specification, the LTC1623 maintains the 0.6V VIL and 1.4V VIH input thresholds throughout the supply voltage range. Using the 2-wire interface, CLK and DATA, the LTC1623 monitors the bus for a start condition (DATA going from high to low while CLK is high). Once detected, the LTC1623 compares its address with the first (address) byte sent over the bus from the master. If matched, the LTC1623 will execute the second (command) byte from the master and independently control the built-in charge pumps to drive two external switches. The LTC1623 has two three-state programmable address pins, thus allowing eight different addresses and a total of sixteen available switches on the same bus.

特点
  • SMBus and I²C Compatible
  • Built-In Charge Pumps Drive N-Channel Switches
  • 16 Available Switches on the Same Bus
  • 0.6V VIL and 1.4V VIH for DATA and CLK
  • Available in 8-Lead MSOP and S0 Packages
  • Low Standby Current: 14µA
  • Eight Addresses from Two Three-State Address Pins
  • Internal Power-On Reset Timer
  • Internal Undervoltage Lockout
  • No Need for External Pull-Up Resistors at Output
  • No Need for Secondary Power Source
典型应用
LTC1623 Typical Application
LTC1623 Typical Application
应用
  • Computer Peripheral Control
  • Laptop Computer Power Plane Switching
  • Portable Equipment Power Control
  • Industrial Control Systems
  • Handheld Equipment
封装信息
LTC1623 Package Drawing
LTC1623 Package Drawing
Order Information 订购型号
器件型号封装温度价格 (以 1 ~ 99 片为批量)价格 (以 1000 片为批量) *
LTC1623CMS8#PBFMS-8C$2.15$1.85
LTC1623CMS8#TRPBFMS-8C$1.91
LTC1623CS8#PBFSO-8C$1.85$1.60
LTC1623CS8#TRPBFSO-8C$1.66
LTC1623IS8#PBFSO-8I$2.25$1.95
LTC1623IS8#TRPBFSO-8I$2.01
数据表
可靠性数据
LT Journal
CAD 符号
相关产品
LTC1623 - SMBus Dual High-SideSwitch Controller
R410 Reliability Data
Feb 1998 Tiny MSOP Dual Switch Driver is SMBus Controlled
LTC1623 Footprints and Symbols