8
LOAD1
3.3V @
10A
-
+
Voltmeter
#1
FA
N
+
3
.3V
out
+
-
-
-
+
+
VIN
10.8V -
13.2V
-
+
TP3
TP4
TP14
TP13
TEXAS INSTRUMENTS
TPS40100EVM-001
12V to 3.3V @ 10A
HPA089A
J5
J2
Voltmeter
#2
-
+
-
+
Ammeter
#1
GND GND
GND GND
Tracking Enable
Jumper Disable
Position
J4 Margin Enable
J1
Pow er Good and Sync In
J5
Tracking In and Enable
Monitor
Enable S1
Tracking Engage S2
Enable SW1
Sw itch Closed = OFF
Sw itch Open = ON
-
1M
Ω
, DC
1V / div
20mHz BW
Sense Jumper
Disabled
Remote GND Sense Jumper
Disabled
1
2
3
4
TP18
TP17
Metal Ground Barrel
Probe Tip
Tip and Barrel Vout ripple and
transient measurement for TP17 and
TP18
TP17
TP18
J8
J7
J6
1
2
3
1
2
3
Figure 4: TPS40100EVM-001 Recommended Test Set-Up
5.2.3 START UP / SHUT DOWN PROCEDURE
1. Increase VIN (V1) from 0V to 12Vdc.
2. Observe that Vout has risen to its nominal voltage.
3. Vary LOAD1 from 0 – 10Adc
4. Vary VIN from 10.8dc to 13.2Vdc
5. Decrease LOAD1 to 0A.
6. Decrease VIN to 0V.
5.2.4 EQUIPMENT SHUTDOWN
1. Shut Down Oscilloscope
2. Shut down LOAD
3. Shut down VIN
4. Shut down FAN
Summary of Contents for TPS40100
Page 4: ...4 4 SCHEMATIC Figure 1 TPS40100EVM 001 Power Stage Control Schematic ...
Page 5: ...5 Figure 2 TPS40100EVM 001 Margin Control Component values are for reference only ...
Page 16: ...16 Iout 10A Figure 11 Power on from enable ...
Page 24: ...24 Figure 19 TPS40100EVM 001 Component Placement Viewed from Top ...
Page 25: ...25 Figure 20 TPS40100EVM 001 Silkscreen Viewed from Top ...
Page 26: ...26 Figure 21 TPS40100EVM 001 Top Copper Viewed from Top ...
Page 27: ...27 Figure 22 TPS40100EVM 001 Layer 2 X Ray View from Top ...
Page 28: ...28 Figure 23 TPS40100EVM 001 Layer 3 X Ray View from Top ...