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

2

4

6

8

10

12

28V

14

40V

16V

Output Power (Watts)

HR121-2812 Efficiency

50

90

80

70

60

2

4

6

8

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

20

40

60

80

100

–10

–5

–15

0

5

10

15

20

2812

2815

Output Power (Watts)

50 mV Drop

HR121 Low Line Dropout

11

2

4

6

8

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

2

4

6

8

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

0

10

2

30

40

50

–6

–4

–8

0

2

4

6

10

2815

2812

Cond. B

Cond. A

2812

8

2

HR120

SERIES

12 WATT

www.interpoint.com

Page 4 of 6

HR120 Rev C - 20090904