Texas Instruments TPS25980 Скачать руководство пользователя страница 11 | Manualshive

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Texas Instruments TPS25980 Скачать руководство пользователя страница 11

Test Setup and Procedures

11

SLUUCB4 – June 2020

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Copyright © 2020, Texas Instruments Incorporated

TPS25980EVM: Evaluation Module for TPS25980x efuse

5.5

Overvoltage Cut-off Test

Use the following instructions to perform overvoltage protection test:

1. Remove input TVS diodes.

2. Set the input supply voltage VIN to 12 V and current limit of 5 A. Apply the supply between input

connectors J1 and J3 and enable the power supply.

3. Set the load resistance to 24

Ω

and connect between VOUT and GND.

4. Increase the input supply VIN from 12 V to 18 V and observe the waveforms using an oscilloscope.

shows over voltage response of TPS259804O on TPS25980EVM eFuse Evaluation Board.

Figure 7. Over Voltage Protection Response of TPS259804O Device

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Содержание TPS25980

Страница 1: ...ion Board Schematic 3 2 TPS25980EVM Setup with Test Equipment 6 3 TPS259804O Output Rise Profile VIN 12 V CdVdT 10 nF COUT 2 mF No load 7 4 Over Current Response of TPS259804O for 8 A Current Limit Se...

Страница 2: ...vercurrent faults LED status indication for Power Good output 1 2 EVM Applications This EVM can be use on the following applications Hot Swap Hot Plug Server standby rails Optical Modules PCIe SSDs an...

Страница 3: ...00M R1 GND 1 00k R11 1 2 3 4 J6 GND IMON IMON Current Monitor Scaling 1 00k R4 1 2 3 4 J4 1800uF C16 DNP 1 2 3 4 5 6 J11 GND 0 R13 PGND PGND 332 R9 511 R8 D2 100pF C17 Q2 10 0k R7 Green D3 2 7V 18V 3...

Страница 4: ...tive high enable and undervoltage input TP4 VCC_EXT External power supply input for Power Good pullup TP5 PG Power Good test point TP6 LDSTRT Load handshake signal input point TP7 PGND System ground T...

Страница 5: ...tage slew rate setting 1 2 Position sets 1 5 V ms 3 4 Position sets 0 5 V ms D3 GREEN LED D3 Power good indicator LED turns on when the internal FET fully turns ON Table 5 Auto retries and Retry Delay...

Страница 6: ...ake sure the evaluation board has default jumper settings as shown in Table 6 Table 6 Default Jumper Setting for TPS25980EVM eFuse Evaluation Board J4 J6 J7 J8 J9 J10 J11 J12 Open 1 2 2 3 Install 3 4...

Страница 7: ...tal output capacitance 1800 uF 220 uF 2 mF 2 Set Jumper J12 in 3 4 position to set Cdvdt at 10 nF for o p slew rate of 0 5 V ms 3 Set the input supply voltage VIN to 12 V and current limit of 5 A Enab...

Страница 8: ...e the power supply 3 Place jumper J10 in 7 8 Position to set 8 A current limit 4 Set the electronic load to 6 A and connect between VOUT and GND Enable the electronic load 5 Now apply overload of 4 A...

Страница 9: ...llowing instructions to perform output Hot Short test 1 Set the input supply voltage VIN to 12 V and current limit of 15 A Turn ON the power supply 2 Short the output of the device for example VOUT to...

Страница 10: ...wing instructions to perform wakeup into short test 1 Set the input supply voltage VIN to 12 V and current limit of 10 A Turn OFF the power supply 2 Short the output of the device for example VOUT to...

Страница 11: ...emove input TVS diodes 2 Set the input supply voltage VIN to 12 V and current limit of 5 A Apply the supply between input connectors J1 and J3 and enable the power supply 3 Set the load resistance to...

Страница 12: ...nts Incorporated TPS25980EVM Evaluation Module for TPS25980x efuse 6 EVAL Board Assembly Drawings and Layout Guidelines 6 1 PCB Drawings Figure 8 shows component placement of the EVAL Board Figure 9 a...

Страница 13: ...gs and Layout Guidelines 13 SLUUCB4 June 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated TPS25980EVM Evaluation Module for TPS25980x efuse Figure 10 TPS25980EVM Board...

Страница 14: ...5C104KAT2A AVX C9 1 1000 pF CAP CERM 1000 pF 25 V 10 C0G NP0 0603 0603 C0603C102K3GACTU Kemet C10 1 0 02 uF CAP CERM 0 02 F 50 V 5 C0G NP0 0805 0805 GRM21B5C1H203JA0 1L MuRata C11 1 470 pF CAP CERM 47...

Страница 15: ...H Header 4 x 2 100 mil Tin PEC04DAAN Sullins Connector Solutions Q1 1 30 V MOSFET N CH 30 V 100 A DNK0008A VSON CLIP 8 DNK0008A CSD17573Q5B Texas Instruments Q2 1 60 V MOSFET N CH 60 V 115 A SOT 23 SO...

Страница 16: ...purpose Orange TH Orange Multipurpose Testpoint 5013 Keystone TP7 TP10 TP17 3 Test Point Multipurpose Black TH Black Multipurpose Testpoint 5011 Keystone TP8 TP9 2 Test Point Compact SMT Testpoint_Key...

Страница 17: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Страница 18: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Страница 19: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Страница 20: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Страница 21: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Страница 22: ...e resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reprod...

Страница 23: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments TPS25980EVM...

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