Texas Instruments TPS25944X635EVM, User Manual

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Introduction
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List of Tables
1 TPS25944X EVM Options and Default Setting
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2 Input and Output Connector Functionality
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3 Test Points Description
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4 Jumper and LEDs Descriptions
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5 Operational Range Setting for VIN1, VIN2 = 12 V, 5 V and 3.3 V
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6 PWR635 DMM Readings at Different Test Points
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7 PWR635 Oscilloscope Setting for Ramp-Up Voltage Test
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8 PWR635 Oscilloscope Setting for Current Limit Test
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9 PWR635 Jumper Setting for Current Limits
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10 TPS25944XEVM-635 Bill of Material
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1 Introduction
The TPS25944X-EVM allows reference circuit evaluation of TI's TPS25944X devices. The TPS25944X
devices are available with both latched and auto-retry operation.
1.1 EVM Features
• General TPS25944XEVM features are:
– 2.7-V to 18.0-V (TYP) operation
• CH1 rising input voltage turn-On threshold – 10.8 V (TYP)
• CH1 falling input voltage turn-off threshold – 10 V (TYP)
• CH2 rising input voltage turn-On threshold – 10.8 V (TYP)
• CH2 falling input voltage turn-off threshold – 2.1 V (TYP)
– 0.6 A to 5.0 A programmable current limit
– Programmable undervoltage lockout/overvoltage
– Programmable VOUT slew rate
– Latched-off TPS25944LRUV (CH2)
– Auto-retry TPS25944ARUV (CH2)
• Push button RESET signal
• On-board transorb is for overvoltage input protection
• Common diode at output prevents negative spike when load is removed
1.2 EVM Applications
• Solid state drives and hard disk drives
• PCIe, RAID, and NIC Cards
• USB power switch
• Industrial:
– PLCs
– Solid state relays and FAN control
• Power Path Management:
– Active ORing
– Priority power multiplexing
2 TPS25944X635EVM: Evaluation Module for TPS25944X SLUUBC2A – May 2015 – Revised July 2015
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