Texas Instruments TPS22921 Manuale utente
TPS22921/22/22B Load Switch EVM
User's Guide
Literature Number: SLVU286January 2009
2 SLVU286 – January 2009Submit Documentation Feedback
Contents
1 TPS22921/22/22B Load Switch Evaluation Module (EVM) ................................................ 51.1 Introduction ................................................................................................................... 5
2 Schematics and Bill of Materials .................................................................................. 72.1 EVM Options ................................................................................................................. 72.2 Schematic ..................................................................................................................... 72.3 Bill of Materials ............................................................................................................... 8
3 Board Layout ............................................................................................................. 93.1 TPS22921/22/22B EVM Board ............................................................................................. 93.2 Layout Considerations ..................................................................................................... 11
4 EVM Setup ............................................................................................................... 134.1 Recommended Test Equipment .......................................................................................... 134.2 Calculating Voltage Drop and Load Current ............................................................................ 13
5 Related Documentation from Texas Instruments .......................................................... 15
Important Notices ............................................................................................................... 16
SLVU286 – January 2009 Contents 3Submit Documentation Feedback
www.ti.com
List of Figures
3-1 TPS22921/22/22B EVM Component Placement ........................................................................ 93-2 TPS22921/22/22B EVM Top-Side Layout .............................................................................. 103-3 TPS22921/22/22B EVM Bottom-Side Layout........................................................................... 104-1 EVM Setup For Calculating Voltage Drop and Load Current......................................................... 13
List of Tables
2-1 TPS22921/22/22B EVM Options .......................................................................................... 72.4 Bill of Materials ............................................................................................................... 8
4List of Figures SLVU286 – January 2009Submit Documentation Feedback
1.1 Introduction
Chapter 1SLVU286 – January 2009
TPS22921/22/22B Load Switch Evaluation Module (EVM)
This user's guide describes the TPS22921/22/22B evaluation module (EVM). This guide contains the EVMschematics, bill of materials, assembly drawings, and top and bottom board layouts.
The TPS22921/22/22B EVM is an evaluation module for the Texas Instruments family of low-input voltage,ultra-low r
ON
load switches. This EVM operates over a 0.9 V to 3.6 V range and provides a continuousoutput current of up to ≈110 mA. Additional open resistor and capacitor footprints allow for the use ofcustomer-selected input and output load values.
The TPS22921/22/22B EVM accepts a YFP-6 packaged load switch for any of three (3) possible devices:TPS22921, TPS22922, or TPS22922B. These switches have a low threshold enable input, internallycontrolled slew rate, and ultra-low quiescent/shutdown current. The TPS22922 and TPS22922B alsoincorporate a 120- Ωquick output discharge resistor internally.
Table 2-1 summarizes the available EVM options.
SLVU286 – January 2009 TPS22921/22/22B Load Switch Evaluation Module (EVM) 5Submit Documentation Feedback
TPS22921/22/22B Load Switch Evaluation Module (EVM)6 SLVU286 – January 2009Submit Documentation Feedback
2.1 EVM Options
2.2 Schematic
A2
B2
C2
A1
B1
C1
U1
TPS22921/22/22B
R1
33
R2
330
R3
ROUT1
COUT1
CIN1
CIN2
COUT2
ROUT2
R4
C5
11
2
2
33
4
4
55
6
6
77
8
8
11
2
2
33
4
4
55
6
6
77
8
8
11
2
2
33
4
4
55
6
6
77
8
8
J6
OUT RES
J5
OUT CAP
J4
IN CAP
C6
1 Fµ
1 Fµ
10 Fµ
0.1 Fµ
C7C8
C1 C2 C3 C4
1
2
J1
1
2
1
2
3
J2
VON
V+
V–
V+
V–
R1
10 kΩ
J3
VOUT
GND
V
V
OUT
OUT
ON
V
V
IN
IN
VIN
Chapter 2SLVU286 – January 2009
Schematics and Bill of Materials
Table 2-1. TPS22921/22/22B EVM Options
QUICK MAXEVM DEVICE SLEW RATE ENABLEOUTPUT DISCHARGE OUTPUT CURRENT
HPA393-01 TPS22921 30 µs No 2 A Active highHPA393-02 TPS22922 30 µs Yes 2 A Active highHPA393-03 TPS22922B 200 µs Yes 2 A Active high
SLVU286 – January 2009 Schematics and Bill of Materials 7Submit Documentation Feedback
2.3 Bill of Materials
Bill of Materials
www.ti.com
Table 2.4. Bill of MaterialsQTY
REFDES VALUE DESCRIPTION SIZE PART NUMBER MFR-01 -02 -03
1 1 1 – – Two-layer, 2420 ×2320 mil, PCB 2420 ×2320 mil HPA393 Any
GRM216R61E12 2 2 C1, C6 1 µF Capacitor, ceramic, 25 V, X5R 805 STD05KA12D
GRM21BR61C11 1 1 C2 10 µF Capacitor, ceramic, 16 V, X5R 805 STD06KE15L
GRM21BR71E11 1 1 C5 0.1 µF Capacitor, ceramic, 25 V, X7R 805 STD04KA01L
C3, C4,0 0 0 – Capacitor, ceramic, 16 V, X5R 805 – STDC7, C8
Sullins1 1 1 J2 – Header, 3 ×1 pin, 100 mil spacing 0.100 ×0.100 in PEC36SAAN Connector
Solutions
3 Sullins3 3 J4, J5, J6 – Header, 4 x 2 pin, 100 mil spacing 0.100 ×0.100 in PEC36DAAN Connector
Solutions
2 Terminal block, 6A, 125 V, 3.5-mm OnShore2 2 J1, J3 – 7 ×6.5 mm ED555/2DSpitch Technology
ERJ-1 1 1 R1 10 k ΩResistor, chip, 1/8 W, 5% 805 STD6GEYJ103V
ERJ-1 1 1 R2 33 ΩResistor, chip, 1/8 W, 5% 805 STD6GEYJ330V
ERJ-1 1 1 R3 330 ΩResistor, chip, 1/8 W, 5% 805 STD6GEYJ331V
0 0 0 R4, R5 – Resistor, chip, 1/8 W, 5% 805 – STD
0 IC, ultra-small, low-input voltage, low1 0 U1 TPS22921 YFP/0.4-mm pitch WCSP TPS22921YFPR TIr
ON
load switch
IC, ultra-small, low-input voltage, low0 1 0 U1 TPS22922 YFP/0.4-mm pitch WCSP TPS22922YFPR TIr
ON
load switch
IC, ultra-small, low-input voltage, low TPS22922BYFP0 0 1 U1 TPS22922B YFP/0.4-mm pitch WCSP TIr
ON
load switch R
Sullins3 3 3 – – Conn. jumper, shorting, gold, flash 0.100 ×0.256 in SPC02SYAN Connector
Solutions
4 4 4 – – Bumpon, hemisphere, .44 ×.20, clear 11.1 mm ×5.1 mm SJ-5303 3M
Schematics and Bill of Materials8 SLVU286 – January 2009Submit Documentation Feedback
3.1 TPS22921/22/22B EVM Board
Chapter 3SLVU286 – January 2009
Board Layout
This section contains three views of the TPS22921/22/22B EVM evaluation board as well as some layoutconsiderations.
Figure 3-1. TPS22921/22/22B EVM Component Placement
SLVU286 – January 2009 Board Layout 9Submit Documentation Feedback
TPS22921/22/22B EVM Board
www.ti.com
Figure 3-2. TPS22921/22/22B EVM Top-Side Layout
Figure 3-3. TPS22921/22/22B EVM Bottom-Side Layout
Board Layout10 SLVU286 – January 2009Submit Documentation Feedback
Questo manuale è adatto per i seguenti modelli
2
Indice
Altri manuali Texas Instruments Scheda madre
Texas Instruments
Texas Instruments UCC27332Q1EVM Manuale utente
Texas Instruments
Texas Instruments ADS1174EVM Manuale utente
Texas Instruments
Texas Instruments LM61460-Q1 EVM Manuale utente
Texas Instruments
Texas Instruments DS90C189-Q1EVM Manuale utente
Texas Instruments
Texas Instruments PGA309EVM-USB Manuale utente
Texas Instruments
Texas Instruments DS90UB96X-Q1EVM Manuale utente
Texas Instruments
Texas Instruments bq27531EVM Manuale utente
Texas Instruments
Texas Instruments TMS320C6472 Manuale utente
Texas Instruments
Texas Instruments DAC53701EVM Manuale utente
Texas Instruments
Texas Instruments TPS7A94EVM-046 Manuale utente
Texas Instruments
Texas Instruments AN-1907 LM3423 Manuale utente
Texas Instruments
Texas Instruments PCI2250 Manuale utente
Texas Instruments
Texas Instruments HDC1080EVM Manuale utente
Texas Instruments
Texas Instruments LMR51450 EVM Manuale utente
Texas Instruments
Texas Instruments bq24725EVM Manuale utente
Texas Instruments
Texas Instruments TPS16630-32EVM Manuale utente
Texas Instruments
Texas Instruments INA209 Manuale utente
Texas Instruments
Texas Instruments DS90UB954-Q1EVM Manuale utente
Texas Instruments
Texas Instruments TPS65132S Manuale utente
Texas Instruments
Texas Instruments DAC5687 EVM Manuale utente
Manuali Scheda madre popolari di altre marche
Telit Wireless Solutions
Telit Wireless Solutions SL869-3DR Manuale utente
Gigabyte
Gigabyte GA-9IVDT Manuale utente
Commell
Commell MS-C73 Manuale utente
IBT Technologies
IBT Technologies MB860 Manuale utente
Nvidia
Nvidia TEGRA DG-04927-001_V01 Manuale utente
Biostar
Biostar M7VIT Bravo Istruzioni per l'uso e l'installazione
