PT7773 Datasheet, PDF (2/3 Pages) Texas Instruments – 32 AMP HIGH-PERFORMANCE SLEDGE HAMMER” PROGRAMMABLE ISR

For assistance or to order, call [phone]
PT7773 5V
Features
• +5V input
• 5-bit Programmable:
0.8V to 3.1V @32A
• High Efficiency
• Input Voltage Range:
4.5V to 5.5V
• Differential Remote
Sense
• 27-pin SIP Package
Programming Information
VID3
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
VID2
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
VID1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
VID0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
VID4=1
Vout
1.6V
1.7V
1.8V
1.9V
2.0V
2.1V
2.2V
2.3V
2.4V
2.5V
2.6V
2.7V
2.8V
2.9V
3.0V
3.1V
VID4=0
Vout
0.80V
0.85V
0.90V
0.95V
1.00V
1.05V
1.10V
1.15V
1.20V
1.25V
1.30V
1.35V
1.40V
1.45V
1.50V
1.55V
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.
CHARACTERISTIC DATA
Ordering Information
PT7773❏ = 0.8 to 3.1 Volts
For dimensions and PC board layout, see
Package Style 1020 and 1030
PT Series Suffix (PT1234X)
Case/Pin
Configuration
Vertical Through-Hole
N
Horizontal Through-Hole
A
Horizontal Surface Mount
C
Efficiency vs Output Current (@Vout=+2.5V) (See Note A)
100
90
80
70
60
50
40
0 4 8 12 16 20 24 28 32
Output Current (A)
Power Dissipation vs Output Current (@Vout=+2.5V)
25
Safe Operating Area (@Vin=+5V, Vout=+2.5V, Pkg N) (See Note B)
90
80
70
Airflow
60
Nat. Conv
60 LFM
120 LFM
50
200 LFM
40
30
20
0
4
8
12
16
20
24
28
32
Output Current (A)
20
15
10
5
0
0 4 8 12 16 20 24 28 32
Output Current (A)
Output Ripple vs Output Current (@Vout=+2.5V)
25
20
15
10
5
0
0 4 8 12 16 20 24 28 32
Output Current (A)
Note A: Characteristic data in the above graphs has been developed from actual products tested at 25°C. This data is considered typical for the ISR.
Note B: 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.ti.com/powertrends