LTC2979
LTC2979
RECOMMENDED FOR NEW DESIGNS16-Channel PMBus Low-Voltage Power System Manager
- Part Models
- 2
- 1ku List Price
- Starting From $20.09
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Overview
- Sequence, Trim, Margin and Supervise 16 Power Supplies
- Manage Faults, Monitor Telemetry and Create Fault Logs
- PMBus Compliant Command Set
- Supported by LTpowerPlay® GUI
- Margin or Trim Supplies to within 0.5% of Target
- Fast OV/UV Supervisors per Channel
- Coordinate Sequencing and Fault Management Across Multiple ADI PSM Devices
- Automatic Fault Logging to Internal EEPROM
- Operate Autonomously without Additional Software
- Internal Temperature and Input Voltage Supervisors
- Accurate Monitoring of 16 Output Voltages, Two Input Voltages and Internal Die Temperature
- I2C/SMBus Serial Interface
- Powered from 3.13V to 3.47V
- Programmable Watchdog Timer
- Available in 144-Pin 12mm × 12mm BGA Package
- LTpowerPlay® Configuration and Development Tool
The LTC2979 is a 16-channel Power System Manager used to sequence, trim (servo), margin, supervise, manage faults, provide telemetry and create fault logs. PMBus commands support power supply sequencing, precision point-of-load voltage adjustment and margining. DACs use a proprietary soft-connect algorithm to minimize supply disturbances. Supervisory functions include overvoltage and undervoltage threshold limits for sixteen power supply output channels and two power supply input channels, as well as over and under temperature limits. Programmable fault responses can disable the power supplies with optional retry after a fault is detected. Faults that disable a power supply can automatically trigger black box EEPROM storage of fault status and associated telemetry. An internal 16-bit ADC monitors sixteen output voltages, two input voltages and die temperature. In addition, odd numbered channels can be configured to measure the voltage across a current sense resistor. A programmable watchdog timer monitors microprocessor activity for a stalled condition and resets the microprocessor if necessary. A single wire bus synchronizes power supplies across multiple ADI Power System Management (PSM) devices. Configuration EEPROM with ECC supports autonomous operation without additional software.
APPLICATIONS
- Computers and Network Servers
- Industrial Test and Measurement
- High Reliability Systems
- Medical Imaging
- Video
Documentation
Product Selector Card 2
Device Drivers 1
Analog Dialogue 2
Webcast 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC2979CY#PBF | 144-Lead BGA (12mm x 12mm x 1.29mm) | ||
| LTC2979IY#PBF | 144-Lead BGA (12mm x 12mm x 1.29mm) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 27, 2022 - 22_0088 LTC2979 Datasheet Limit Change |
||
| LTC2979CY#PBF | PRODUCTION | |
| LTC2979IY#PBF | PRODUCTION | |
|
Sep 7, 2021 - 21_0197 LTC2979 Datasheet Limit Change |
||
| LTC2979CY#PBF | PRODUCTION | |
| LTC2979IY#PBF | PRODUCTION | |
|
Jul 21, 2021 - 21_0159 Ink Mark to Laser Mark Conversion for µModule |
||
| LTC2979CY#PBF | PRODUCTION | |
| LTC2979IY#PBF | PRODUCTION | |
|
Jun 30, 2020 - 20_0244 Notification of Wafer Fab Location Change for 0.6µm CMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan) |
||
| LTC2979CY#PBF | PRODUCTION | |
| LTC2979IY#PBF | PRODUCTION | |
|
Apr 25, 2020 - 20_0123 Micro-Module, Test Site Transfer from Analog Devices Singapore to Analog Devices Penang, Malaysia |
||
| LTC2979CY#PBF | PRODUCTION | |
| LTC2979IY#PBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
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Hardware Ecosystem
Tools & Simulations
LTpowerPlay®
LTpowerPlay® is a powerful, Windows-based development environment supporting Linear Technology's Digital Power System Management (PSM) products.
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