B4-50

HR120 SERIES

12 WATT

Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, unless otherwise specified.

Output Power (Watts)

HR122-2812 Efficiency

50

90

80

70

60

2

4

6

8

10

12

16V

40V

28V

14

Output Power (Watts)

HR121-2805 Efficiency

50

90

80

70

60

2468

10

12

28V

14

40V

16V

Output Power (Watts)

HR121-2812 Efficiency

50

90

80

70

60

2

4

68

10

12

16V

40V

28V

14

Output Power (Watts)

HR122-2815 Efficiency

50

90

80

70

60

2

4

6

8

10

12

19V

40V

28V

14

Output Power (Watts)

HR121-2815 Efficiency

50

90

80

70

60

2

4

6

8

10

12

19V

40V

28V

14

Output Load (%)

Positive Output 20% to 80% Load

Negative Output 80% to 20% Load

HR122 Negative Output Voltage

Cross Regulation

–20

0

20406080

100

–10

–5

–15

0

5

10

15

20

2812

2815

Output Power (Watts)

50 mV Drop

HR121 Low Line Dropout

11

2468

10

12

14

13

14

12

15

16

17

18

19

2812

2815

2805

Output Power (Watts)

50 mV Drop

HR122 Low Line Dropout

11

2468

10

12

14

13

14

12

15

16

17

18

19

2812

2815

Output Load (%)

Condition A: 50% Load Pos. Vout, 50% to 20% Neg. Vout

Condition B: 50% Load Neg. Vout, 50% to 20% Pos. Vout

HR122 Negative Output Voltage

Cross Regulation

–10

010230

40

50

–6

–4

–8

0

2

4

6

10

2815

2812

Cond. B

Cond. A

2812

8

2

21821-009-DTS Rev A

DQ# 2011

All technical information is believed to be accurate, but no responsibility is assumed

for errors or omissions. Interpoint reserves the right to make changes in products

or specifications without notice. HR120 Series is a trademark of Interpoint.

Copyright © 1994 - 1999 Interpoint. All rights reserved.