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User's Guide
SLVUAH8–July 2015
TPS24742EVM-667 Evaluation Module
This user’s guide describes the TPS24742 evaluation module (TPS24742EVM-667). The TPS24742EVM-
667 (EVM) contains evaluation and reference circuitry for the TPS24742. The TPS24742 device is an
easy-to-use, 2.5 to 18 V, hot-swap and ORing power management device that safely drives external N-
channel MOSFETs.
Contents
1 Introduction ................................................................................................................... 2
1.1 Features.............................................................................................................. 2
1.2 Applications.......................................................................................................... 2
1.3 Electrical Specifications............................................................................................ 3
2 Description.................................................................................................................... 3
2.1 Jumpers.............................................................................................................. 3
3 Schematic..................................................................................................................... 4
4 TPS24742 Hot-Swap and OR Performance ............................................................................. 6
5 Priority Muxing ............................................................................................................... 7
6 EVM Assembly Drawing and PCB Layout................................................................................ 8
6.1 PCB Drawings....................................................................................................... 8
7 Bill of Material............................................................................................................... 13
List of Figures
1 Block Diagram for Priority Muxing......................................................................................... 3
2 TPS24742EVM-667 High Level Schematic .............................................................................. 4
3 TPS24742EVM-667 Hotswap then OR Schematic A................................................................... 4
4 TPS24742EVM-667 Hotswap then OR Schematic B................................................................... 5
5 Start Up (C
OUT
= 440 µF).................................................................................................... 6
6 Start Up (C
OUT
= 10440 µF)................................................................................................. 6
7 Hot Short on V
OUT
(Zoomed Out)........................................................................................... 6
8 Hot Short on V
OUT
(Zoomed In)............................................................................................. 6
9 Under/Overvoltage With V
IN
Rising........................................................................................ 6
10 Under/Overvoltage With V
IN
Falling........................................................................................ 6
11 Start into Short on VOUT................................................................................................... 6
12 Load Step – 40 A to 60 A................................................................................................... 6
13 Hot – Short on VIN .......................................................................................................... 7
14 Gradual Reverse Current................................................................................................... 7
15 Top Side Component Placement .......................................................................................... 8
16 Top Side Routing ............................................................................................................ 9
17 Midlayer 1 Routing ......................................................................................................... 10
18 Midlayer 2 Routing ......................................................................................................... 11
19 Bottom Layer Routing...................................................................................................... 12
List of Tables
1 TPS24742EVM-667 Electrical and Performance Specifications at 25°C............................................. 3
2 Jumpers (A and B Circuits)................................................................................................. 3
1
SLVUAH8–July 2015 TPS24742EVM-667 Evaluation Module
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