LTC2937
LTC2937
RECOMMENDED FOR NEW DESIGNSProgrammable Six Channel Sequencer and Voltage Supervisor with EEPROM
- Part Models
- 8
- 1ku List Price
- Starting From $8.95
Viewing:
Overview
- Time and Event Based Sequencing
- 12 Programmable Undervoltage (UV) and Overvoltage (OV) Comparators: ±0.75% Accuracy
- I2C/SMBus Interface
- Stalled Power Supply Detection
- Single Wire Synchronization Allows Controller Expansion to 50 Devices (300 Power Supplies)
- Configuration and Fault Logging in EEPROM
- EEPROM Specified Over Entire Temperature Range, Rated to 125°C, 10k Writes, 20yr Retention
- Supported by LTpowerPlay® GUI
- Fault and System Status Registers
- Reset Output with Programmable Delay
- Wide Input Supply Voltage Range: 2.9V to 16.5V
- 28-Lead QFN (5mm × 6mm) Package
The LTC2937 is a 6-channel power supply sequencer and voltage supervisor. Supplies are enabled or disabled with precise user controlled order and time spacing. To detect power supply output faults during sequencing and monitoring, the LTC2937 accurately monitors supply turn-on/-off delays and output voltage levels. In the event of a fault, response actions include complete power supply shutdown and optional restarts. Root cause of power faults are logged to EEPROM. For systems with high supply count, a simple single wire connection between multiple LTC2937 devices allows sequencing expansion to 300 supplies. After successful sequencing and supply voltage stabilization, the reset output pulls high to initiate microprocessor or other system activity. To accommodate supply margin testing, the reset output can be disabled. Upon supply turn-off, integrated current sources are available as needed to discharge slowly decaying supplies. Configuration EEPROM supports autonomous operation without software.
Applications
- Network Servers
- Data Storage Systems
- Telecom Equipment
- High Availability Computer Systems
Documentation
Data Sheet 1
User Guide 2
Application Note 1
Design Note 1
Technical Articles 3
Product Selector Card 5
Product Selection Guide 1
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 |
|---|---|---|---|
| LTC2937CUHE#PBF | 28-Lead QFN (5mm x 6mm x 0.75mm w/ EP) | ||
| LTC2937CUHE#TRPBF | 28-Lead QFN (5mm x 6mm x 0.75mm w/ EP) | ||
| LTC2937HUHE#PBF | 28-Lead QFN (5mm x 6mm x 0.75mm w/ EP) | ||
| LTC2937HUHE#TRPBF | 28-Lead QFN (5mm x 6mm x 0.75mm w/ EP) | ||
| LTC2937IUHE#PBF | 28-Lead QFN (5mm x 6mm x 0.75mm w/ EP) | ||
| LTC2937IUHE#TRPBF | 28-Lead QFN (5mm x 6mm x 0.75mm w/ EP) | ||
| LTC2937MPUHE#PBF | 28-Lead QFN (5mm x 6mm x 0.75mm w/ EP) | ||
| LTC2937MPUHE#TRPBF | 28-Lead QFN (5mm x 6mm x 0.75mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 14, 2025 - 25_0017 Bond Wire Change from Gold to Copper |
||
| LTC2937CUHE#PBF | PRODUCTION | |
| LTC2937CUHE#TRPBF | PRODUCTION | |
|
Apr 14, 2025 - 25_0017 Bond Wire Change from Gold to Copper |
||
| LTC2937HUHE#PBF | PRODUCTION | |
| LTC2937HUHE#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Power System Management (PSM) & Sequencers 1 | ||
| LTC2975 | RECOMMENDED FOR NEW DESIGNS | 4-Channel PMBus Power System Manager Featuring Accurate Input Current and Energy Measurement |
| Supervisory Circuits & Reset ICs 1 | ||
| LTC2936 | RECOMMENDED FOR NEW DESIGNS | Programmable Hex Voltage Supervisor with EEPROM and Comparator Outputs |
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC2937
Linduino 2
Software Development Kit 1
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.
Linduino code repository on GitHub and instructions on how to use the code.