This user’s guide describes the evaluation module (EVM) for the TPS25985 eFuse. The TPS25985 device is a 4.5-V to 16-V and 60-A (RMS) stackable eFuse with an accurate and fast current monitoring capability. This device supports the parallel connection of multiple eFuses for higher current designs by actively synchronizing the device states and sharing the loads during start-up and steady state. The TPS25985 eFuse has an integrated FET with ultra-low ON resistance of 0.59-mΩ, adjustable and robust overcurrent and short-circuit protections, precise load current monitoring, fast overvoltage protection (fixed 16.7-V threshold), adjustable output slew rate control for inrush current protection, and built-in overtemperature protection to ensure FET safe operating area (SOA). TPS25985 eFuse also has an adjustable overcurrent transient blanking timer to support load transients, adjustable under-voltage protection, integrated FET health monitoring, and reporting, analog die temperature monitor output, dedicated fault and power good indication pins, and an uncommitted general-purpose fast comparator.
PROCHOT#™ is a trademark of Intel.
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The TPS25985EVM eFuse Evaluation Board allows reference circuit evaluation of Texas Instruments (TI) TPS25985 eFuse. The TPS25985 device is a 4.5-V to 16-V and 60-A (RMS) stackable eFuse with an accurate and fast current monitoring capability. This device supports the parallel connection of multiple eFuses for higher current designs by actively synchronizing the device states and sharing the loads during start-up and steady state. The TPS25985 eFuse has an integrated FET with ultra-low ON resistance of 0.59-mΩ, adjustable and robust overcurrent and short-circuit protections, precise load current monitoring, fast overvoltage protection (fixed 16.7-V threshold), adjustable output slew rate control for inrush current protection, and built-in overtemperature protection to ensure FET safe operating area (SOA). TPS25985 eFuse also has an adjustable overcurrent transient blanking timer to support load transients, adjustable under-voltage protection, integrated FET health monitoring, and reporting, analog die temperature monitor output, dedicated fault and power good indication pins, and an uncommitted general-purpose fast comparator.
TPS25985EVM comes with two (2) TPS25985 eFuses connected in parallel to evaluate a 12-V (typical) and 120-A (steady state) design. General TPS25985EVM eFuse evaluation board features include:
Adjustable reference voltage for overcurrent protection and active current sharing blocks
Adjustable current limit during start-up and active current sharing threshold using onboard jumpers
Onboard test points and associated circuitry to implement the system level functionalities such as adjustable overvoltage protection, PROCHOT#™, load handshake, power good with adjustable thresholds, etc using the general-purpose comparator built into the TPS25985 eFuse
Options to engage the enable power cycle and the quick output discharge (QOD)
Option to apply custom load transients using onboard MOSFETs, gate drive circuit, and load resistors