LTC2933

PRODUCTION

Programmable Hex Voltage Supervisor with EEPROM

Data Sheet (Rev. B) Product Selection Table
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Overview

  • Supervises 6 Power Supplies
  • I2C Adjustable UV and OV Trip Points
  • Guaranteed Threshold Accuracy: ±1%
  • I2C/SMBus Interface
  • Internal EEPROM
  • 256 Programmable Thresholds per Channel
  • Up to Three Range Settings per Channel
  • Two General Purpose Inputs
  • Three General Purpose Inputs/Outputs
  • Programmable Output Delays
  • Supply Voltage Range, 3.4V to 13.9V
  • Supply Voltage Power Sharing from V1 to V4
  • 16-Lead 5mm × 4mm DFN and SSOP Package
  • Enables Functional Safety at System Level

The LTC2933 is an EEPROM configurable voltage supervisor which can simultaneously monitor up to six power supply voltage inputs. Each voltage detector offers I2C programmable over/undervoltage thresholds in various ranges and increments.

Two general purpose inputs (GPI) can be configured as programmable manual reset (MR), UV disable (UVDIS), margin (MARG) 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 log 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 Systems
LTC2933
Programmable Hex Voltage Supervisor with EEPROM
Precision Multiple Power Supply Supervisor Normalized V1 to V6 Threshold vs Temperature Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 2

Application Note 1

Technical Articles 3

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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

Evaluation Kits

eval board
schematic 1
DC2293A-A

LTC2933 | SSOP-16 Package Socketed Programming Board (requires DC1613)

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Product Details

The DC2293A programming board contains the circuitry needed to program and verify the EEPROM of the LTC2933. This is its sole purpose. The LTC2933 comes in either a 16-pin SSOP or a 16-pin DFN package. The DC2293A-A supports the SSOP and the DC2293A-B supports the DFN package.

eval board
schematic 2
DC2293A-B

LTC2933 | DFN-16 Package Socketed Programming Board (requires DC1613)

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Product Details

The DC2293A programming board contains the circuitry needed to program and verify the EEPROM of the LTC2933. This is its sole purpose. The LTC2933 comes in either a 16-pin SSOP or a 16-pin DFN package. The DC2293A-A supports the SSOP and the DC2293A-B supports the DFN package.

eval board
schematic 3
schematic 4
DC1633B

LTC2933IGN Demo Board | Programmable Hex Voltage Supervisor with EEPROM (Requires DC1613)

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Product Details

The DC1633B is a demonstration system that showcases the LTC2933, a 6-channel I2C/SMBus voltage supervisor with EEPROM. The LTC2933 simultaneously monitors up to six power supply voltages and detects under/overvoltage conditions. In addition the LTC2933 monitors two GPI pins and is able to drive three GPIO pins to indicate OV, UV, system reset, system alert, or other control signal.
DC2293A-A
LTC2933 | SSOP-16 Package Socketed Programming Board (requires DC1613)
DC2293A - Demo Board Image
DC2293A-B
LTC2933 | DFN-16 Package Socketed Programming Board (requires DC1613)
DC2293A - Demo Board Image
DC1633B
LTC2933IGN Demo Board | Programmable Hex Voltage Supervisor with EEPROM (Requires DC1613)
DC1633B - Schematic Simplified Block Diagram of the DC1633B

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