LTC2936

RECOMMENDED FOR NEW DESIGNS

Programmable Hex Voltage Supervisor with EEPROM and Comparator Outputs

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Overview

  • Supervises 6 Power Supplies
  • I2C Adjustable UV and OV Trip Points
  • Guaranteed Threshold Accuracy: ±1% (Maximum)
  • I2C/SMBus Interface
  • Internal EEPROM
  • Six Comparator Outputs
  • Fast Comparator Response Time: 7.5μs
  • 256 Programmable Thresholds per Channel
  • Three Range Settings per Channel
  • Two General Purpose Inputs
  • Three General Purpose Inputs/Outputs
  • Programmable Output Delays
  • Can Be Powered from 3.3V, or 3.4V to 13.9V
  • 24-Lead 4mm × 5mm QFN and SSOP Packages

The LTC2936 is an EEPROM configurable voltage supervisor which can simultaneously monitor up to six power supply voltage inputs. Each voltage detector offers I2C programmable overvoltage/undervoltage thresholds in various ranges and increments and a dedicated comparator output.

Two general purpose inputs (GPI) can be configured as programmable manual reset (MR), UV disable (UVDIS), margin (MARG), Write Protect (WP) or auxiliary comparator (AUXC) inputs. Three general purpose pins (GPIO) can be configured for input or output operation. When configured as an input, a GPIO pin can be mapped to any other GPIO configured as output. The GPIO pins can also be configured as ALERT or fault outputs. Faults can be configured with programmable delay-on-release times. Output type and polarity are also configurable.

Status and history registers log faults and can be polled via the I2C interface. A fault snapshot is also backed up in internal EEPROM. All parameters are programmable via the I2C interface. Configuration EEPROM supports autonomous operation without additional software.

Applications

  • High Availability Computer Systems
  • Network Servers
  • Telecom Equipment
  • Data Storage
LTC2936
Programmable Hex Voltage Supervisor with EEPROM and Comparator Outputs
V1 to V6 Error vs Temperature Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 2

Technical Articles 2

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Power System Management (PSM) & Sequencers 1
LTC2937
RECOMMENDED FOR NEW DESIGNS Programmable Six Channel Sequencer and Voltage Supervisor with EEPROM
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Tools & Simulations

Linduino 2

LTpowerPlay®

LTpowerPlay® is a powerful, Windows-based development environment supporting Linear Technology's Digital Power System Management (PSM) products.

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Evaluation Kits

eval board
schematic 1
DC2450A-A

LTC2936 QFN-24 Package Socketed Programming Board [Requires DC1613]

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Product Details

The DC2450A programming board contains the circuitry needed to program and verify the EEPROM of the LTC2936. This is its sole purpose. The LTC2936 comes in either a 24-pin SSOP or a 24-pin QFN package. The DC2450A-A supports the QFN and the DC2450A-B supports the SSOP package.

eval board
schematic 2
DC2450A-B

LTC2936 SSOP-24 Package Socketed Programming Board [Requires DC1613]

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Product Details

The DC2450A programming board contains the circuitry needed to program and verify the EEPROM of the LTC2936. This is its sole purpose. The LTC2936 comes in either a 24-pin SSOP or a 24-pin QFN package. The DC2450A-A supports the QFN and the DC2450A-B supports the SSOP package.

eval board
schematic 3
DC1605B

LTC2936CGN Demo Board | Programmable Hex Voltage Supervisor with EEPROM and Comparator Outputs [Requires DC1613]

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Product Details

The DC1605B is a demonstration system that showcases the LTC2936, a 6-channel I2C/SMBus voltage supervisor with EEPROM. The LTC2936 simultaneously monitors up to six power supply voltages and detects undervoltage and overvoltage conditions. In addition the LTC2936 monitors two GPI pins and is able to drive three GPIO pins to indicate OV, UV, system reset, system alert, or other control signal.
DC2450A-A
LTC2936 QFN-24 Package Socketed Programming Board [Requires DC1613]
DC2450A - Demo Board Image
DC2450A-B
LTC2936 SSOP-24 Package Socketed Programming Board [Requires DC1613]
DC2450A - Demo Board Image
DC1605B
LTC2936CGN Demo Board | Programmable Hex Voltage Supervisor with EEPROM and Comparator Outputs [Requires DC1613]
DC1605B - Schematic

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