Start Up / Shut Down Procedure; Equipment Shutdown - Texas Instruments TPS40100 User Manual

Ammeter
+
VIN
Voltmeter
10.8V -
-
#1
13.2V
-
-

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
8
J1
Pow er Good and Sync In
GND GND
Tracking Engage S2
TP3
J8
#1
J2
Tracking Enable
Jumper Disable
Position
Remote +Sense Jumper
TP4 Disabled
Figure 4: TPS40100EVM-001 Recommended Test Set-Up
J4 Margin Enable Tracking In and Enable
GND GND
Enable S1
1
2 J7
3
4
TP18 3
2
TP17
1
J5
3
2 J6
1
TEXAS INSTRUMENTS
TPS40100EVM-001
12V to 3.3V @ 10A
HPA089A
J5
Monitor
Enable SW1
Sw itch Closed = OFF
Sw itch Open = ON
Remote GND Sense Jumper
Disabled
TP14
-
LOAD1
3.3V @
10A
+
TP13
1MΩ , DC
1V / div
20mHz BW
Metal Ground Barrel
Probe Tip
TP17
Tip and Barrel Vout ripple and
transient measurement for TP17 and
TP18
-
Voltmeter
#2
+
TP18