LTC2937HUHE#TRPBF

The LTC2937HUHE#TRPBF from Analog Devices is a versatile 6-channel power supply sequencer and voltage supervisor designed for complex power management systems. It enables precise user-controlled sequencing of power supplies, ensuring correct turn-on and turn-off order with adjustable time spacing.

This device accurately monitors supply output voltage levels and turn-on/off delays, detecting power supply faults. In response to a fault, it can initiate a complete power supply shutdown and optional restarts, logging the root cause to its internal EEPROM. The integrated EEPROM supports autonomous operation without software and is specified over the entire temperature range up to 125°C with 10k writes and 20-year retention.

Key features include 12 programmable undervoltage and overvoltage comparators with ±0.75% accuracy, an I2C/SMBus interface for communication, and stalled power supply detection. For systems requiring more channels, a single-wire synchronization allows expansion to 300 supplies. The device operates over a wide input supply voltage range of 2.9V to 16.5V and is housed in a 28-lead QFN (5mm x 6mm) package, suitable for surface mounting.

Applications for the LTC2937HUHE#TRPBF include network servers, data storage systems, telecom equipment, and high-availability computer systems where reliable power sequencing and monitoring are critical.