LTC2937IUHE#PBF

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, this device 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. It is used in application such as network servers, data storage systems, telecom equipment, high availability computer systems etc.

• Time and event based sequencing
• I²C/SMBus interface, stalled power supply detection
• Supported by LTpowerPlay® GUI
• Fault and system status registers
• Reset output with programmable delay
• Wide input supply voltage range is 2.9V to 16.5V
• Operating temperature is -40°C to 85°C
• Package style is 28-lead plastic QFN

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party