PT7750 Datasheet, PDF (2/3 Pages) Texas Instruments – 15 AMP 24V INPUT “BIG-HAMMER III” PROGRAMMABLE ISR

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PT7750 Series
Programming Information
PT7751 PT7756
VID4=1 VID4=0 VID4=1 VID4=0
VID3 VID2 VID1 VID0 Vout Vout Vout Vout
1
1
1
1
1
1
1
0
1
1
0
1
1
1
0
0
1
0
1
1
1
0
1
0
1
0
0
1
1
0
0
0
0
1
1
1
0
1
1
0
0
1
0
1
0
1
0
0
0
0
1
1
0
0
1
0
0
0
0
1
0
0
0
0
2.5V
2.6V
2.7V
2.8V
2.9V
3.0V
3.1V
3.2V
3.3V
3.4V
3.5V
3.6V
3.7V
3.8V
3.9V
4.0V
4.1V
4.2V
4.3V
4.4V
4.5V
4.6V
4.7V
4.8V
4.9V
5.0V
5.1V
5.2V
5.3V
5.4V
5.5V
5.6V
6.6V
6.8V
7.0V
7.2V
7.4V
7.6V
7.8V
8.0V
8.2V
8.4V
8.6V
8.8V
9.0V
9.2V
9.4V
9.6V
9.8V
10.0V
10.2V
10.4V
10.6V
10.8V
11.0V
11.2V
11.4V
11.6V
11.8V
12.0V
12.2V
12.4V
12.6V
12.8V
Logic 0 = Pin 12 potential (remote sense gnd)
Logic 1 = Open circuit (no pull-up resistors)
VID3 and VID4 may not be changed while the unit is operating.
Ordering Information
PT7751t = 2.5 to 5.6 Volts
PT7756t = 6.6 to 12.8 Volts
(For dimensions and PC board layout,
see Package Styles 1000 and 1010.)
PT Series Suffix (PT1234X)
Case/Pin
Configuration
Vertical Through-Hole N
Horizontal Through-Hole A
Horizontal Surface Mount C
CHARACTERISTIC DATA
Efficiency vs Output Current (@Vin=+24V)
100
90
80
Vout
12.0V
5.0V
70
3.3V
2.5V
60
50
40
0
3
6
9
12
15
Output Current (A)
PT7751 Safe Operating Area (@Vin=+24V, Over Vo Range)
90
Recommended
Maximum
80
Operating
Temperature
70
Airflow
Nat conv
60
60LFM
120LFM
50
200LFM
40
30
20
0
3
6
9
12
15
Output Current (A)
Ouput Ripple vs Output Current (@Vin=+24V)
70
60
50
Vout
12.0V
40
5.0V
3.3V
30
2.5V
20
10
0
0
3
6
9
12
15
Output Current (A)
PT7756 Safe Operating Area (@Vin=+24V, Over Vo Range)
Recommended
90
Maximum
Operating
80
Temperature
70
Airflow
60
Nat conv
60LFM
120LFM
50
200LFM
40
30
20
0
3
6
9
12
15
Output Current (A)
Power Dissipation vs Output Current (@Vin=+24V)
16
14
12
Vout
10
12.0V
5.0V
8
3.3V
6
2.5V
4
2
0
0
3
6
9
12
15
Output Current (A)
Note: SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating temperatures.
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 [phone] Fax: [phone] http://www.powertrends.com
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