Texas Instruments TLV841EVM, User Manual

Page: 1 / 20

User’s Guide
TLV841EVM Voltage Supervisor User Guide
Ben Chan
ABSTRACT
This user guide describes the TLV841EVM evaluation module (EVM). This guide contains the EVM schematic,
bill of materials (BOM), assembly drawing, and top and bottom board layouts.
Table of Contents
1 Introduction ............................................................................................................................................................................. 2
1.1 Related Documentation...................................................................................................................................................... 3
1.2 TLV841 Applications........................................................................................................................................................... 3
2 Schematic, Bill of Materials, and Layout .............................................................................................................................. 4
2.1 TLV841EVM Schematic..................................................................................................................................................... 5
2.2 TLV841EVM Bill of Materials.............................................................................................................................................. 6
2.3 Layout and Component Placement.................................................................................................................................... 7
2.4 Layout................................................................................................................................................................................ 7
3 EVM Connectors ..................................................................................................................................................................... 9
3.1 EVM Test Points................................................................................................................................................................. 9
3.2 EVM Jumpers................................................................................................................................................................... 10
4 EVM Setup and Operation .................................................................................................................................................... 11
4.1 Input Power (V
DD
)............................................................................................................................................................. 11
4.2 Monitoring Voltage on SENSE Pin (TLV841S)................................................................................................................. 11
4.3 Monitoring Voltage on VDD (TLV841M and TLV841C).................................................................................................... 12
4.4 Manual Reset (MR) (TLV841M)....................................................................................................................................... 12
4.5 Reset Output (RESET)..................................................................................................................................................... 12
4.6 Reset Time Delay Programming (Program t
D
via C
T
) (TLV841C).................................................................................... 13
5 Revision History ................................................................................................................................................................... 14
List of Figures
Figure 1-1. TLV841EVM Board Top............................................................................................................................................. 2
Figure 1-2. TLV841EVM Board Bottom....................................................................................................................................... 3
Figure 2-1. TLV841EVM Schematic with TLV841S..................................................................................................................... 5
Figure 2-2. Component Placement—Top Assembly.................................................................................................................... 7
Figure 2-3. Component Placement—Bottom Assembly.............................................................................................................. 7
Figure 2-4. Layout—Top.............................................................................................................................................................. 7
Figure 2-5. Layout—Bottom......................................................................................................................................................... 7
Figure 2-6. Top Layer................................................................................................................................................................... 8
Figure 2-7. Bottom Layer............................................................................................................................................................. 8
Figure 2-8. Top Solder Mask........................................................................................................................................................ 8
Figure 4-1. TLV841EVM Glitch Immunity................................................................................................................................... 12
Figure 4-2. TLV841EVM RESET Propagation Detect Delay..................................................................................................... 13
Figure 4-3. TLV841EVM RESET Delay Time (t
D
) for TLV841S/M or for TLV841C where C
T
Pin Is Floating ........................... 14
List of Tables
Table 2-1. BOM............................................................................................................................................................................ 6
Table 3-1. Test Points.................................................................................................................................................................. 9
Table 3-2. List of Onboard Jumpers........................................................................................................................................... 10
Table 4-1. Nominal Input Threshold Voltage.............................................................................................................................. 11
Trademarks
All trademarks are the property of their respective owners.
www.ti.com Table of Contents
SNVU755A – JANUARY 2021 – REVISED JUNE 2021
Submit Document Feedback
TLV841EVM Voltage Supervisor User Guide 1
Copyright © 2021 Texas Instruments Incorporated