LTM®9100 μModule® High Voltage Isolated Switch Controller

Linear Technology’s hot swap controllers for backplane, isolated power systems, and power monitor applications

Image of Linear Technology LTM®9100 uModule® High Voltage Isolated Switch ControllerLTC’s LTM9100 μModule (micromodule) controller is a galvanically isolated switch controller with I2C interface, for use as a load switch or hot swap controller. A single 5 V supply powers both sides of the switch controller through an integrated, isolated DC/DC converter. A separate logic supply input allows easy interfacing with logic levels from 3 V to 5.5 V, independent of the main supply. Isolated measurements of load current and two additional voltage inputs are made by a 10-bit ADC, and accessed via the I2C interface. The logic and I2C interface is separated from the switch controller by a 5 kVRMS isolation barrier. LTM9100 is ideal for systems where the switch operates on buses up to 1000 VDC, as well as for providing galvanic isolation in systems where a ground path is broken to allow large common mode voltage swings. Typical applications include high voltage DC hot swap, live backplane insertion, and breaking ground loops.

Image of Linear Technology LTM®9100 uModule® High Voltage Isolated Switch Controller Diagram

Features Applications
  • UL-CSA recognition pending
  • Reinforced insulation
  • Integrated isolated power supply
  • Adjustable turn-on ramp rate and current limit
  • I2C/SMBus interface
  • 10-bit ADC monitors current as well as two uncommitted channels
  • High common mode transient immunity: ≥30 kV/μs
  • Voltage supply: 4.5 V to 5.5 V
  • Current supply: 50 mA
  • Operating temperature range: 0°C to +70°C
  • Package/case: 42-BGA
  • High voltage DC hot swap
  • Isolated distributed power systems
  • Power monitors
  • Live backplane insertion
  • Industrial control systems
  • Breaking ground loops

LTM9100 μModule High Voltage Isolated Switch Controller

ImageManufacturer Part NumberDescriptionOperating TemperatureAvailable QuantityView Details
LTM9100CY#PBF datasheet linkISOLATED SWITCH CONTROLLER 42BGALTM9100CY#PBFISOLATED SWITCH CONTROLLER 42BGA0°C ~ 70°C119 - Immediate
LTM9100CY#PBF product page link
LTM9100IY#PBF datasheet linkISOLATED SWITCH CONTROLLER 42BGALTM9100IY#PBFISOLATED SWITCH CONTROLLER 42BGA-40°C ~ 85°C103 - Immediate
LTM9100IY#PBF product page link
LTM9100HY#PBF datasheet linkISOLATED SWITCH CONTROLLER 42BGALTM9100HY#PBFISOLATED SWITCH CONTROLLER 42BGA-40°C ~ 105°C120 - Immediate
LTM9100HY#PBF product page link

Evaluation Boards

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
DC2423A-B datasheet linkDEMO BOARD FOR LTM9100DC2423A-BDEMO BOARD FOR LTM91000DC2423A-B product page link
DC2423A-A datasheet linkDEMO BOARD FOR LTM9100DC2423A-ADEMO BOARD FOR LTM91001 - Immediate
DC2423A-A product page link
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Published: 2018-01-11