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Setup and Operation

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12

SLVUAT7 – October 2016

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TPS2553Q1EVM (HVL125A) Precision Current Limiting Switch User Guide

Figure 11. Turnon Delay

Figure 12. Turnoff Delay

3.4.2

Measuring Short-Circuit Output-Current Limit

Figure 13

shows the recommended test setup for measuring the short-circuit output-current limit. Add an

external switch to control when the short circuit branch is active. This allows the user to exercise the
device in full load to short circuit scenarios. The enable switch should be pulled low and apply the J6
jumper for this test setup. Changing the R

ILIM

jumpers in this setup allows the user to adjust the output

short-circuit current.

Summary of Contents for TPS2553Q1EVM

Page 1: ...Schematic Bill of Materials and Layout 3 3 Setup and Operation 9 List of Figures 1 TPS2553Q1EVM Board 2 2 TPS2553Q1EVM Schematic 3 3 EVM Board Image for TPS2553Q1EVM Top View 5 4 EVM Board Image for...

Page 2: ...m 100 mA to 1500 mA There is also onboard functionality for manual setting of the enable pin or using a jumper solution for using the auto retry feature of the device The provided test points give the...

Page 3: ...out This section provides a detailed description of the TPS2553Q1EVM schematic bill of materials BOM and layout 2 1 Schematic Figure 2 TPS2553Q1EVM Schematic 2 2 Bill of Materials Table 1 BOM DESIGNAT...

Page 4: ...1 182k RES 182 k 1 0 1 W 0603 0603 CRCW0603182KFKEA Vishay Dale S1 1 Switch Slide SPDT On Off On 3 Pos 0 05A 48 V TH 9 5x5mm AS1E 2M 10 Z Copal Electronics SH J1 SH J2 SH J3 3 1x2 Shunt 100mil Flash G...

Page 5: ...ncorporated TPS2553Q1EVM HVL125A Precision Current Limiting Switch User Guide 2 3 Layout and Component Placement Figure 3 and Figure 4 top and bottom overviews of the printed circuit board PCB show th...

Page 6: ...ayout www ti com 6 SLVUAT7 October 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated TPS2553Q1EVM HVL125A Precision Current Limiting Switch User Guide Figure 5 Layout To...

Page 7: ...rials and Layout 7 SLVUAT7 October 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated TPS2553Q1EVM HVL125A Precision Current Limiting Switch User Guide Figure 7 Layout Bo...

Page 8: ...Materials and Layout www ti com 8 SLVUAT7 October 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated TPS2553Q1EVM HVL125A Precision Current Limiting Switch User Guide Fig...

Page 9: ...connection TP5 VOUT Voltage Output Output voltage connection TP6 GND GND Output ground connection TP7 EN Voltage Monitoring and Probing Enable signal voltage monitoring TP8 GND Voltage Monitoring and...

Page 10: ...3 EVM Setup The EVM setup section details what test equipment the user needs to use the EVM and how to properly setup the EVM environment 3 3 1 Recommended Test Equipment The following is the recommen...

Page 11: ...ents Incorporated TPS2553Q1EVM HVL125A Precision Current Limiting Switch User Guide Figure 10 Test Setup for Turnon and Turnoff Delay Figure 11 shows the turnon delay of the switch into a 5 ohm load T...

Page 12: ...Circuit Output Current Limit Figure 13 shows the recommended test setup for measuring the short circuit output current limit Add an external switch to control when the short circuit branch is active T...

Page 13: ...HVL125A Precision Current Limiting Switch User Guide Figure 13 Test Setup for Short Circuit Output Current Limit Figure 14 shows the load transient where the resistance of the load changes from 5 ohms...

Page 14: ...sient Figure 15 Short Circuit to 5 Ohm Load Transient 3 4 3 Using Auto Retry Functionality Figure 16 shows the recommended test setup for using and measuring the auto retry functionality of the TPS255...

Page 15: ...itch User Guide Figure 16 Test Setup for Auto Retry Functionality Figure 17 shows the device in auto retry mode with no current limiting jumpers applied very high RILIM value The retry time is around...

Page 16: ...Documentation Feedback Copyright 2016 Texas Instruments Incorporated Revision History Figure 17 Test Setup for Auto Retry Functionality Figure 18 Test Setup for Auto Retry Functionality With J3 Revisi...

Page 17: ...are returned during the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasona...

Page 18: ...transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indic...

Page 19: ...ified allowable ranges some circuit components may have elevated case temperatures These components include but are not limited to linear regulators switching transistors pass transistors current sens...

Page 20: ...REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF USE L...

Page 21: ...sponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related inf...

Page 22: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments TPS2553Q1EVM...

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