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LTC1623 Datasheet

LTC1623 Datasheet

SMBus Dual High-Side Switch Controller
Part No.: LTC1623
Page: 12 Pages
Size: 103 KB
Manufacturer: Linear Technology
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Views: 1
Update Time: 2023-11-23 11:02:35
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LTC1623 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LTC1623CMS8#PBF Tube 50 LTCH 1 8 0°C ~ 70°C 8-Lead MSOP  
LTC1623CMS8#TRPBF Reel 2500 LTCH 1 8 0°C ~ 70°C 8-Lead MSOP  
LTC1623CMS8#TRMPBF Reel 500 LTCH 1 8 0°C ~ 70°C 8-Lead MSOP  
LTC1623CS8#PBF Tube 100 1623 1 8 0°C ~ 70°C 8-Lead SOIC  
LTC1623CS8#TRPBF Reel 2500 1623 1 8 0°C ~ 70°C 8-Lead SOIC  
LTC1623CS8#TRMPBF Reel 500 1623 1 8 0°C ~ 70°C 8-Lead SOIC  
LTC1623IS8#PBF Tube 100 1623I 1 8 -40°C ~ 125°C 8-Lead SOIC  
LTC1623IS8#TRPBF Reel 2500 1623I 1 8 -40°C ~ 125°C 8-Lead SOIC  
LTC1623IS8#TRMPBF Reel 500 1623I 1 8 -40°C ~ 125°C 8-Lead SOIC  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LTC1623 Datasheet(PDF)

LTC1623 Datasheet(Picture)

LTC1623 Features

  • 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

LTC1623 Applications

  • Computer Peripheral Control
  • Laptop Computer Power Plane Switching
  • Portable Equipment Power Control
  • Industrial Control Systems
  • Handheld Equipment

LTC1623 Description

The LTC1623 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.

LTC1623 Datasheet Related Parts

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