* ISR will operate down to no load with reduced specifications.
Note:
The 78HT200 Series requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications.
Power Trends, Inc.
27715 Diehl Road, Warrenville, IL 60555
(800) 531-5782
Fax: (630) 393-6902
http://www.powertrends.com
For assistance or to order, call
(800) 531-5782
78HT200
CHARACTERISTIC
DATA
Series
78HT233_ 3.3 VDC
(See Note 1)
78HT205_ 5.0 VDC
(See Note 1)
Efficiency vs Output Current
100
90
100
90
Efficiency vs Output Current
Efficiency (%)
8.0V
10.0V
12.0V
14.0V
15.0V
Efficiency (%)
80
70
60
50
40
0.0
0.5
1.0
1.5
2.0
Vin
80
70
60
50
40
0.0
0.5
1.0
1.5
2.0
Vin
8.0V
10.0V
15.0V
20.0V
28.0V
Iout (A)
Iout (A)
Ripple vs Output Current
30
25
20
15
10
5
0
0.0
0.5
1.0
1.5
2.0
60
50
Ripple vs Output Current
Vin
Ripple (mV)
8.0V
10.0V
12.0V
14.0V
15.0V
Ripple (mV)
40
30
20
10
0
0.0
0.5
1.0
1.5
2.0
Vin
8.0V
10.0V
15.0V
20.0V
28.0V
Iout (A)
Iout (A)
Thermal Derating (T
a
)
2.0
(See Note 2)
70°C
85°C
Thermal Derating (T
a
)
2.0
(See Note 2)
60°C
70°C
1.5
1.5
85°C
Iout (A)
1.0
Iout (A)
8
10
12
14
16
1.0
0.5
0.5
0.0
0.0
8
12
16
20
24
28
Vin (Volts)
Vin (Volts)
Power Dissipation vs Output Current
2.5
2.5
Power Dissipation vs Output Current
2.0
2.0
Vin
PD (Watts)
1.5
8.0V
10.0V
12.0V
14.0V
15.0V
Vin
PD (Watts)
1.5
8.0V
10.0V
15.0V
20.0V
28.0V
1.0
1.0
0.5
0.5
0.0
0.0
0.5
1.0
1.5
2.0
0.0
0.0
0.5
1.0
1.5
2.0
Iout (A)
Iout (A)
Note 1:
All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25°C. This data is considered typical data for the ISR.
Note 2:
Thermal derating graphs are developed in free air convection cooling of 40-60 LFM. (See Thermal Application Note)
Power Trends, Inc.
27715 Diehl Road, Warrenville, IL 60555
(800) 531-5782
Fax: (630) 393-6902
http://www.powertrends.com
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