LTM9100 - Anyside™ High Voltage Isolated Switch Controller with I²C Command and Telemetry
Features
- UL-CSA Recognition Pending: 5kVRMS for One Minute
- Reinforced Insulation
- Integrated Isolated Power Supply
- Adjustable Turn-On Ramp Rate and Current Limit
- I2C/SMBus Interface
- 10-Bit ADC Monitors Current and Two Uncommitted Channels
- High Common Mode Transient Immunity: ≥ 30kV/μs
- Fault Status Alert and Power Good Outputs
- Independent 3V to 5.5V Logic Supply
- ±20kV ESD Across the Isolation Barrier
- Maximum Continuous Working Voltage: 690VRMS
- 14.6mm Creepage Distance
- Low Current Shutdown Mode (<10μA)
- 22mm × 9mm × 5.16mm BGA Package
Typical Application
Description
The LTM®9100 μModule® (micromodule) controller is a complete, galvanically isolated switch controller with I2C interface, for use as a load switch or hot swap controller. The load is soft started and controlled by an external N-channel MOSFET switch. Overcurrent protection minimizes MOSFET stress during start-up, input step and output short-circuit conditions. Owing to the isolated, floating character of the switch, it is easily configured for use in high side, low side and floating applications.
A single 5V 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 3V to 5.5V, 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 5kVRMS isolation barrier, making the LTM9100 ideal for systems where the switch operates on buses up to 1000VDC, as well as for providing galvanic isolation in systems where a ground path is broken to allow large common mode voltage swings. Uninterrupted communication is guaranteed for common mode transients of up to 30kV/μs.
Packaging
For complete and up to date package information and drawings, please refer to our packaging page
| Part Number | Package | Code | Temp | Package Drawing |
RoHS |
|---|---|---|---|---|---|
| LTM9100CY#PBF | 22mm x 9mm x 5.16mm BGA | BGA | C | 05-08-1973 | Yes |
| LTM9100HY#PBF | 22mm x 9mm x 5.16mm BGA | BGA | H | 05-08-1973 | Yes |
| LTM9100IY#PBF | 22mm x 9mm x 5.16mm BGA | BGA | I | 05-08-1973 | Yes |
Order Info
- Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LTM9100CY#PBF | 22mm x 9mm x 5.16mm BGA | C | $27.79 | $19.45 | Yes | |
| LTM9100HY#PBF | 22mm x 9mm x 5.16mm BGA | H | $33.57 | $23.50 | Yes | |
| LTM9100IY#PBF | 22mm x 9mm x 5.16mm BGA | I | $30.56 | $21.40 | Yes | |
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC2423A-A | LTM9100 Demo Board | Isolated 48V Switch Controller with Telemetry [requires DC590 or DC2026] | $150.00 | |
| DC2423A-B | LTM9100 Demo Board | Isolated 380V Switch Controller with Telemetry [requires DC590 or DC2026] | $150.00 | |
| Buy Now | |||
Companion Boards
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC2026C | Linduino One Isolated USB Demo Board: An Arduino- and QuikEval-Compatible Code Development Platform | $75.00 | |
| DC590B | Isolated USB Serial Controller for Linear Technology QuikEval-Compatible Demo Boards | $50.00 | |
| Buy Now | |||
Applications
- High Voltage DC Hot Swap
- Live Backplane Insertion
- Isolated Distributed Power Systems
- Power Monitors
- Industrial Control Systems
- Breaking Ground Loops
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Design Tools
LTspice
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Models for the following parts are available in LTspice:
LTM9100
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.