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User's Guide
SLPU003A – February 2014 – Revised February 2014
High Power Density, Low Profile NexFET™ Power Block II
for Notebook Power Supply
The evaluation module (EVM) CSD87381PEVM-603 uses the CSD87381P together with TI controller
TPS51219 providing 1.35-V output at up to 15 A from input voltage ranging 8 to 20 V.
Contents
1
Description
...................................................................................................................
1.1
Typical Applications
................................................................................................
1.2
Features
.............................................................................................................
2
Electrical Performance Specifications
....................................................................................
3
Schematic
....................................................................................................................
4
Test Setup
...................................................................................................................
4.1
Test Equipment
.....................................................................................................
4.2
Recommended Test Setup
.......................................................................................
5
Test Procedure
..............................................................................................................
5.1
Line and Load Regulation and Efficiency Measurement Procedure
........................................
5.2
List of Testpoints
...................................................................................................
5.3
Equipment Shutdown
..............................................................................................
6
Performance Data and Typical Characteristic Curves
.................................................................
7
EVM Assembly Drawing and PCB Layout
...............................................................................
8
Bill of Materials
.............................................................................................................
List of Figures
1
CSD87381PEVM-603 Schematic
........................................................................................
2
Tip and Barrel Measurement for Vsw Waveform
.......................................................................
3
CSD87381PEVM-603 Recommended Test Setup
.....................................................................
4
Efficiency versus Output Current for CSD87381P With TPS51219
..................................................
5
Switching Node Waveform, VIN = 12 V, Iout = 10 A
...................................................................
6
Switching Node Waveform, VIN = 19 V, Iout = 10 A
...................................................................
7
CSD87381PEVM-603 Top Layer Assembly Drawing (Top View)
....................................................
8
CSD87381PEVM-603 Bottom Assembly Drawing (Bottom View)
....................................................
9
CSD87381PEVM-603 Top Copper (Top View)
.........................................................................
10
CSD87381PEVM-603 Internal Layer 1 (Top View)
.....................................................................
11
CSD87381PEVM-603 Internal Layer 2 (Top View)
...................................................................
12
CSD87381PEVM-603 Internal Layer 3 (Top View)
...................................................................
13
CSD87381PEVM-603 Internal Layer 4 (Top View)
...................................................................
14
CSD87381PEVM-603 Bottom Copper (Top View)
....................................................................
List of Tables
1
CSD87381PEVM-603 Electrical Performance Specifications
.........................................................
2
Function of Each Testpoint
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NexFET, D-CAP2 are trademarks of Texas Instruments.
1
SLPU003A – February 2014 – Revised February 2014
High Power Density, Low Profile NexFET™ Power Block II for Notebook
Power Supply
Copyright © 2014, Texas Instruments Incorporated