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User's Guide
TPS25984 Evaluation Module (EVM)
This user's guide describes the evaluation module (EVM) for the TPS25984 eFuse. The TPS25984 device is
a 4.5-V to 16-V and 70-A (peak) stackable eFuse with accurate and fast current monitor. This device supports
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 TPS25984 eFuse has an integrated FET with
ultra-low ON resistance of 0.8 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 overtemperature protection to verify FET SOA. The TPS25984 eFuse also has
adjustable overcurrent transient blanking timer to support load transients, adjustable undervoltage protection,
integrated FET health monitoring and reporting, analog die temperature monitor output, and dedicated fault and
power good indication pins.
1
Introduction.............................................................................................................................................................................3
1.1 EVM Features....................................................................................................................................................................
1.2 EVM Applications...............................................................................................................................................................
2 Description..............................................................................................................................................................................
3
Schematic................................................................................................................................................................................4
Configurations..........................................................................................................................................................6
4.1 Physical Access.................................................................................................................................................................
4.2 Test Equipment..................................................................................................................................................................
Procedures....................................................................................................................................................8
5.1 Hot Plug.............................................................................................................................................................................
5.2 Start-Up With Enable.........................................................................................................................................................
5.4 Power Up Into Short.........................................................................................................................................................
5.5 Overvoltage Lockout........................................................................................................................................................
5.6 Transient Overload Performance.....................................................................................................................................
5.7 Overcurrent Event............................................................................................................................................................
5.9 Output Hot Short..............................................................................................................................................................
5.10 Quick Output Discharge (QOD).....................................................................................................................................
5.11 Thermal Performance of TPS25984EVM.......................................................................................................................
6 EVAL Board Assembly Drawings and Layout Guidelines................................................................................................
Drawings..................................................................................................................................................................19
(BOM)..........................................................................................................................................................22
8 Revision History...................................................................................................................................................................
SLVUCH6A - JULY 2023 - REVISED NOVEMBER 2023
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ABSTRACT
Caution Hot Surface.
Contact may cause burns.
Caution
Table of Contents
Mechanisms....................................................................10
List of Figures
Copyright © 2023 Texas Instruments Incorporated
Do not touch !
Circuit.....................................14
1)..................................................................................4
2)..................................................................................5
TPS25984 Evaluation Module (EVM)
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Summary of Contents for Texas Instruments TPS25984
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Page 1: Table Of Contents
TPS25984 Evaluation Module (EVM) ABSTRACT This user’s guide describes the evaluation module (EVM) for the TPS25984 eFuse. The TPS25984 device is a 4.5-V to 16-V and 70-A (peak) stackable eFuse with accurate and fast current monitor. This device supports 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. - Page 2 Figure 5-3. TPS25984 eFuse Hot Plug Profile-2......................... Figure 5-4. TPS25984 eFuse Start-Up Profile With ENABLE....................Figure 5-5. Start-Up Profile With ENABLE: Current Sharing Between Two (2) TPS25984 eFuses.......... Figure 5-6. Start-Up With Current Limit Response of TPS25984 eFuse................... Figure 5-7. Start-Up With Output Slew Rate Control (Only) Response of TPS25984 eFuse............
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Page 3: Introduction
The TPS25984EVM eFuse evaluation board allows reference circuit evaluation of Texas Instruments (TI) TPS25984 eFuse. The TPS25984 device is a 4.5-V to 16-V and 70-A (peak) stack-able eFuse with accurate and fast current monitor. This device supports 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. -
Page 4: Schematic
Figure 3-1. TPS25984EVM eFuse Evaluation Board Schematic (Page 1) TPS25984 Evaluation Module (EVM) SLVUCH6A – JULY 2023 – REVISED NOVEMBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated... -
Page 5: Figure 3-2. Tps25984Evm Efuse Evaluation Board Schematic
Note • To evaluate the performance of one TPS25984 eFuse at lower currents (< 55 A), RZ5, RZ6, RZ7, RZ8, and RZ9 resistors need to be depopulated. Also R11 and R12 resistors must be populated to disable the secondary eFuse. -
Page 6: General Configurations
Open-drain signal to indicate and control power switch ON and OFF TP11 SWEN status Maximum device die temperature monitor analog voltage output with TP12 TEMP two (2) TPS25984 eFuses in parallel TP13 DVDT Start-up output slew rate control TP14 ITIMER Overcurrent blanking timer: Primary Device... -
Page 7: Test Equipment
4.2.1 Power Supplies One adjustable power supply with 0-V to 30-V output and 0-A to 200-A output current limit. SLVUCH6A – JULY 2023 – REVISED NOVEMBER 2023 TPS25984 Evaluation Module (EVM) Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated... -
Page 8: Test Setup And Procedures
One resistive load or equivalent which can tolerate up to 200-A DC load at 24 V and capable of the output short. 5 Test Setup and Procedures In this user's guide, the test procedure is described for TPS25984 eFuse. Make sure the evaluation board has default jumper settings as shown in Table 5-1. -
Page 9: Hot Plug
VOUT with a given input voltage of 12 V. Figure 5-4 Figure 5-5 show the start-up profile of TPS25984 eFuse with ENABLE using two (2) devices in parallel. SLVUCH6A – JULY 2023 – REVISED NOVEMBER 2023... -
Page 10: Difference Between Current Limit And Dvdt Based Start-Up Mechanisms
= 25.27 mF, R = 0.5 LOAD DVDT LIMI2 IREF LOAD Figure 5-4. TPS25984 eFuse Start-Up Profile With Ω, and C = 22 nF DVDT ENABLE Figure 5-5. Start-Up Profile With ENABLE: Current Sharing Between Two (2) TPS25984 eFuses 5.3 Difference Between Current Limit and DVDT Based Start-Up Mechanisms Use the following instructions to perform the start-up with current limit test: 1. -
Page 11: Power Up Into Short
4. Configure the jumpers J5 and J7 positions to the desired current limits during start-up as mentioned in Table 4-3. 5. Keep the TPS25984 eFuses disabled by pushing the switch SW1. 6. Turn ON the power supply. 7. Enable the TPS25984 eFuse by releasing the switch SW1. -
Page 12: Overvoltage Lockout
2. Apply a load of 1.2 Ω between VOUT (Connector T2) and PGND (Connector T3). 3. Increase the input supply VIN from 12 V to 18 V and observe the waveforms using an oscilloscope. Figure 5-10 shows overvoltage lockout response of TPS25984 eFuse on TPS25984EVM eFuse Evaluation Board. Note The input TVS diodes must be removed during the overvoltage protection test. -
Page 13: Transient Overload Performance
J3. TIMER 8. Observe the waveforms using an oscilloscope. Figure 5-11 Figure 5-12 show transient overload performance of TPS25984 eFuse on TPS25984EVM eFuse evaluation board with two (2) devices in parallel. VOUT VILIM_PRIMARY VOUT VILIM_SECONDARY... -
Page 14: Overcurrent Event
Test Setup and Procedures www.ti.com 5.7 Overcurrent Event Use the following instructions to perform the overcurrent test on TPS25984 eFuse: 1. Configure the Jumper J3 to an appropriate position to obtain required overcurrent blanking period (t ) as TIMER Table 4-3. -
Page 15: Figure 5-15. Transient Overload Performance In Tps25984Evm Using The Onboard Switching Circuit
Figure 5-16. Persistent Overload Performance in TPS25984EVM Using the Onboard Switching in TPS25984EVM Using the Onboard Switching Circuit Circuit SLVUCH6A – JULY 2023 – REVISED NOVEMBER 2023 TPS25984 Evaluation Module (EVM) Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated... -
Page 16: Output Hot Short
150 A current probe. 4. Observe the waveforms using an oscilloscope. Figure 5-17 shows the test waveforms of output hot short on the TPS25984EVM with two (2) TPS25984 eFuses in parallel. VOUT... -
Page 17: Quick Output Discharge (Qod)
9.8 V–13.5 V. 4. Observe the waveforms of VIN (TP5), VOUT (TP6), PG (TP20), and EN (TP22) using an oscilloscope. Figure 5-18, the turn-off performance of the TPS25984 eFuse with QOD enabled is shown, whereas Figure 5-19 illustrates the turn-off performance with QOD disabled on the TPS25984EVM eFuse evaluation board. -
Page 18: Figure 5-20. Thermal Performance Of Tps25984Evm
= 25°C, and no external air flow Figure 5-20. Thermal Performance of TPS25984EVM Figure 5-20 shows the thermal performance of TPS25984EVM with two (2) TPS25984 eFuses in parallel. TPS25984 Evaluation Module (EVM) SLVUCH6A – JULY 2023 – REVISED NOVEMBER 2023 Submit Document Feedback Copyright ©... -
Page 19: Eval Board Assembly Drawings And Layout Guidelines
S1_N TP26 PGND TP24 VDD_Pullup 10ms 20ms Figure 6-4. TPS25984EVM Board: Bottom Layer Figure 6-3. TPS25984EVM Board: Top Layer SLVUCH6A – JULY 2023 – REVISED NOVEMBER 2023 TPS25984 Evaluation Module (EVM) Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated... -
Page 20: Figure 6-5. Tps25984Evm Board: Layer 2 (Power)
.50in 10ms 10ms 20ms 20ms Figure 6-7. TPS25984EVM Board: Layer 4 (Signal) Figure 6-8. TPS25984EVM Board: Layer 5 (Signal) TPS25984 Evaluation Module (EVM) SLVUCH6A – JULY 2023 – REVISED NOVEMBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated... -
Page 21: Figure 6-9. Tps25984Evm Board: Layer 6 (Power)
Analog signal nets, such as IREF, IMON, and TEMP, must be routed away as much as possible from power nets, such as VIN, VOUT, and PGND. SLVUCH6A – JULY 2023 – REVISED NOVEMBER 2023 TPS25984 Evaluation Module (EVM) Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated... -
Page 22: Bill Of Materials (Bom)
Mount DO-214AB (SMCJ) 214AB-MFG Diode, Super Barrier Rectifier, 45 V, 10 A, D3, D4 45 V POWERDI5 SBR10U45SP5-13 Diodes Inc. PowerDI5 TPS25984 Evaluation Module (EVM) SLVUCH6A – JULY 2023 – REVISED NOVEMBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated... - Page 23 TE Connectivity R20, R21 Molded SMD T/R 5329-IPC_C 10.0k RES, 10.0 k, 1%, 0.1 W, 0603 0603 CRCW060310K0FKEA Vishay-Dale SLVUCH6A – JULY 2023 – REVISED NOVEMBER 2023 TPS25984 Evaluation Module (EVM) Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
- Page 24 Single-Channel High-Speed Low-Side Gate Driver with 5 V Negative Input Voltage Handling DBV0006A_N UCC27511AQDBVRQ1 Texas Instruments Ability, DBV0006A (SOT-23-6) TPS25984 Evaluation Module (EVM) SLVUCH6A – JULY 2023 – REVISED NOVEMBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
- Page 25 Vishay 0BYEN_0603- Q200, Moisture Resistant Thin Film RES, 0, 5%, 0.063 W, AEC-Q200 Grade 0, 0402 0402 CRCW04020000Z0ED Vishay-Dale SLVUCH6A – JULY 2023 – REVISED NOVEMBER 2023 TPS25984 Evaluation Module (EVM) Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
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Page 26: Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision * (July 2023) to Revision A (November 2023) Page • First public release............................. TPS25984 Evaluation Module (EVM) SLVUCH6A – JULY 2023 – REVISED NOVEMBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated... - Page 27 STANDARD TERMS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein.
- Page 28 www.ti.com Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product.
- Page 29 www.ti.com Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à...
- Page 30 www.ti.com EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices.
- Page 31 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2023, Texas Instruments Incorporated...
- Page 32 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2023, Texas Instruments Incorporated...
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