Analog Devices' 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.
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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
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- High voltage DC hot swap
- Isolated distributed power systems
- Power monitors
- Live backplane insertion
- Industrial control systems
- Breaking ground loops
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Analog Devices' 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.
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