PT7720 Datasheet, PDF (2/4 Pages) Texas Instruments – 17 AMP 12V INPUT “BIG-HAMMER II” PROGRAMMABLE ISR

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PT7720 Series
Programming Information
PT7721 PT7722
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
2.0V
2.1V
2.2V
2.3V
2.4V
2.5V
2.6V
2.7V
2.8V
2.9V
3.0V
3.1V
3.2V
3.3V
3.4V
3.5V
1.30V
1.35V
1.40V
1.45V
1.50V
1.55V
1.60V
1.65V
1.70V
1.75V
1.80V
1.85V
1.90V
1.95V
2.00V
2.05V
4.5V
4.6V
4.7V
4.8V
4.9V
5.0V
5.1V
5.2V
5.3V
5.4V
5.5V
5.6V
5.7V
5.8V
5.9V
6.0V
6.1V
6.2V
6.3V
6.4V
6.5V
6.6V
6.7V
6.8V
6.9V
7.0V
7.1V
7.2V
7.3V
7.4V
7.5V
7.6V
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
PT7721t = 1.3 to 3.5 Volts
PT7722t = 4.5 to 7.6 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=+12V)
100
90
80
70
60
50
40
0 2 4 6 8 10 12 14 16 18 20
Output Current (A)
Vout
5.0V
3.3V
2.5V
1.5V
Safe Operating Area (@Vin=+12V, Vout=+3.3V, Pkg N)
90
80
70 _{Recommended Maximum}
60 ^{Operating Temperature}
50
40
Airflow
200LFM
120LFM
60LFM
Nat conv
30
20
0 2 4 6 8 10 12 14 16 18 20
Output Current (A)
Output Ripple vs Output Current (@Vin=+12V)
16
14
12
10
8
6
4
2
0
0 2 4 6 8 10 12 14 16 18 20
Output Current (A)
Vout
5.0V
3.3V
2.5V
1.5V
Safe Operating Area (@Vin=+12V, Vout=+5.0V, Pkg N)
90
80
70 _{Recommended Maximum}
60 ^{Operating Temperature}
50
40
Airflow
200LFM
120LFM
60LFM
Nat conv
30
20
0 2 4 6 8 10 12 14 16 18 20
Output Current (A)
Power Dissipation vs Output Current (@Vin=+12V)
16
14
12
10
8
6
4
2
0
0 2 4 6 8 10 12 14 16 18 20
Vout
5.0V
3.3V
2.5V
1.5V
Output Current (Amps)
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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