Programmable Hex Voltage Supervisor with EEPROM Features: 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 Packages

Memory Controllers SmartWatch RAM

Memory Controllers Controller w/Lithium Battery Monitor

Memory Controllers 3V Cntlr w/Lithium Battery Monitor

EPROM

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

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

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Memory Controllers 3V Cntlr w/Lithium Battery Monitor