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TPS25940XEVM-635: Evaluation Module for TPS25940X
This user's guide describes the evaluation module (EVM) for the Texas instruments TPS25940X devices.
TPS25940X devices are eFuse with true reverse blocking for power mux that operates from 2.7 V to 18 V,
the device has integrated back-to-back FETs with programmable undervoltage, overvoltage, reverse-
voltage, overcurrent and in-rush current protection features.
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SLVUA44 - June 2014
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Copyright © 2014, Texas Instruments Incorporated
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TPS25940XEVM-635: Evaluation Module for TPS25940X
User's Guide
SLVUA44 - June 2014
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Table of Contents
Related Manuals for Texas Instruments TPS25940XEVM-635
Summary of Contents for Texas Instruments TPS25940XEVM-635
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Page 1: Table Of Contents
SLVUA44 – June 2014 TPS25940XEVM-635: Evaluation Module for TPS25940X This user’s guide describes the evaluation module (EVM) for the Texas instruments TPS25940X devices. TPS25940X devices are eFuse with true reverse blocking for power mux that operates from 2.7 V to 18 V, the device has integrated back-to-back FETs with programmable undervoltage, overvoltage, reverse- voltage, overcurrent and in-rush current protection features. -
Page 2: Introduction
– Solid-state relays and FAN control Description The TPS25940XEVM-635 enables full evaluation of the TPS25940X devices. The EVM supports two versions (Auto-retry and Latched) of the devices on two Channels (CH1 and CH2, respectively). Input power is applied at J3 (CH1) and J8 (CH2), while J2 (CH1)/J7 (CH2) provide the output connection to the... -
Page 3: Schematic
TP22 16.9k Pin1_CTRL-2 IMON2 32.4k ILIM HI Net-Tie TP24 SH-J9 24.9k TP25 16.2k TP23 TP26 Net-Tie Net-Tie SGND2 Figure 1. TPS25940XEVM Schematic SLVUA44 – June 2014 TPS25940XEVM-635: Evaluation Module for TPS25940X Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated... -
Page 4: General Configurations
General Configurations The following sections describe physical access, test equipment, test setup, and test procedures for the EVM. Physical Access Table 2 lists the TPS25940XEVM-635 input and output connector functionality. Table 3 describes the test point availability and Table 4 describes the jumper functionality. -
Page 5: Test Equipment
One resistive load or equivalent which take up to 6 ADC load at 12 V and capable to do the output short. SLVUA44 – June 2014 TPS25940XEVM-635: Evaluation Module for TPS25940X Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated... -
Page 6: Test Setup
Voltmeter Negative Negative Power Load Supply Positive Positive PWR635 Voltmeter Negative Power Negative Supply Positive Load Positive Figure 2. EVM Test Setup TPS25940XEVM-635: Evaluation Module for TPS25940X SLVUA44 – June 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated... -
Page 7: Test Procedures
12 ±0.3 VDC PG1 (TP9) 2.40 ±0.2 VDC PG2 (TP21) 2.4 ±0.2 VDC FLTb1 (TP4) 10.51 ±0.5 VDC FLTb2 (TP20) 10.5 ±0.5 VDC SLVUA44 – June 2014 TPS25940XEVM-635: Evaluation Module for TPS25940X Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated... -
Page 8: Pwr635 Oscilloscope Setting For Ramp Up Voltage Test
Trigger source = Channel 1 Trigger level = 6.0 ±0.5 V Trigger polarity = Positive Trigger Mode = Single Sequence Time base = 1 ms/div TPS25940XEVM-635: Evaluation Module for TPS25940X SLVUA44 – June 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated... -
Page 9: Ramp Up Time For Ch1
EVM RST switch, S2 and release verify that VOUT2 (TP16) ramps up as Figure 4 shows. Figure 4. V Ramp Up Time for CH2 SLVUA44 – June 2014 TPS25940XEVM-635: Evaluation Module for TPS25940X Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated... -
Page 10: Pwr635 Oscilloscope Settings For Current Limit Test
Table Table 10. PWR635 Jumper Setting for Current Limits Jumper Position Load Current Limit J4 (CH1) J9 (CH2) No Jumper No Jumper TPS25940XEVM-635: Evaluation Module for TPS25940X SLVUA44 – June 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated... -
Page 11: J4 = Lo Current Limit Test Auto Retry (Ch1)
Figure 6. J9 = “No Jumper” Current Limit Test with Latch (CH2) • Set the input power supply to zero volts and disconnect all equipment from the DUT. SLVUA44 – June 2014 TPS25940XEVM-635: Evaluation Module for TPS25940X Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated... -
Page 12: Evm Assembly Drawings And Layout Guidelines
Figure 9 show component placement and layout of the EVM. Figure 7. Top Side Placement Figure 8. Top Side Routing Layer TPS25940XEVM-635: Evaluation Module for TPS25940X SLVUA44 – June 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated... -
Page 13: Bottom Side Routing Layer
EVM Assembly Drawings and Layout Guidelines www.ti.com Figure 9. Bottom Side Routing Layer SLVUA44 – June 2014 TPS25940XEVM-635: Evaluation Module for TPS25940X Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated... -
Page 14: Bill Of Materials (Bom)
Bill of Materials (BOM) www.ti.com Bill of Materials (BOM) Table 11 lists the BOM for this EVM. Table 11. TPS25940XEVM-635 Bill of Material Designator Value Description PackageReference PartNumber Manufacturer Alternate PartNumber Alternate Manufacturer !PCB Printed Circuit Board PWR635 0.1uF CAP, CERM, 0.1uF, 25V, +/-10%, X7R, 0603... - Page 15 Bill of Materials (BOM) www.ti.com Table 11. TPS25940XEVM-635 Bill of Material (continued) Designator Value Description PackageReference PartNumber Manufacturer Alternate PartNumber Alternate Manufacturer TP1, TP4, TP5, White Test Point, TH, Multipurpose, White Keystone5012 5012 Keystone Equivalent TP8, TP9, TP11, TP17, TP18,...
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Page 16: Important Notice
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. - Page 17 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments TPS25940EVM-635...
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