Partner Product

Tsi206  (2401)
Inrush Controller with PI-Link Interface

The Tundra Tsi206 provides inrush control of -48V circuit boards in hot-swappable applications. With onboard data acquisition capability, it is also an isolated telemetry device, providing digitized information about a board�s power system across the safety isolation barrier. Today�s high availability communications and computing architectures use redundant primary battery feeds. Accessing various digitized primary side parameters from a secondary side management device provides significant system uptime advantages. Hidden fuse faults can be flagged before system downtime occurs. Card level parameters such

as primary side current and voltage levels can indicate fault trends and drive preventative maintenance activities.



In addition to -48V inrush control, the Tsi206 provides full primary side monitoring capabilities. A PI-Links interface enables safe transmission of this data across isolation using a low cost transformer. A CPU can then read this information from a Tundra Tsi25x series power management device via its standard I2C interface.

2401
Self powered from primary card input voltage Controlled, constant current inrush for hot swapped 48V circuit boards Time limit based inrush shuts off power to faulty boards Highly accurate low input shutdown based on primary side under voltage, with built in hysteresis 10-bit ADC conversion and transmission of primary side voltage 8-bit ADC conversion of primary side current Additional general purpose primary side ADC monitoring input. Can be used for fan speed monitoring or other purposes Monitoring of all fuses (high side and low side) Status data transmitted via PI Link (fuse failure, overcurrent, brownout) can be configured to set the state of digital GPIO pins on secondary side Tsi25x series devices � Shutdown of primary DC DC converter based on primary voltage faults � Shutdown of primary DC DC converter based on signal from Tsi25x series device
Tsi206
The Tundra Tsi206 provides inrush control of -48V circuit boards in hot-swappable applications. With onboard data acquisition capability, it is also an isolated telemetry device, providing digitized information about a board�s power system across the safety isolation barrier. Today�s high availability communications and computing architectures use redundant primary battery feeds. Accessing various digitized primary side parameters from a secondary side management device provides significant system uptime advantages. Hidden fuse faults can be flagged before system downtime occurs. Card level parameters such as primary side current and voltage levels can indicate fault trends and drive preventative maintenance activities. In addition to -48V inrush control, the Tsi206 provides full primary side monitoring capabilities. A PI-Links interface enables safe transmission of this data across isolation using a low cost transformer. A CPU can then read this information from a Tundra Tsi25x series power management device via its standard I2C interface.
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Inrush Controller with PI-Link Interface