DC/DC C
ONVERTERS
90
90
16V
HR120 SERIES
12 WATT
90
19V
Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, unless otherwise specified.
80
16V
80
80
Efficiency (%)
Efficiency (%)
40V
70
28V
60
70
40V
28V
Efficiency (%)
40V
70
28V
60
60
50
2
4
6
8
10
12
14
50
2
4
6
8
10
12
14
50
2
4
6
8
10
12
14
Output Power (Watts)
Output Power (Watts)
Output Power (Watts)
HR121-2805 Efficiency
HR121-2812 Efficiency
HR121-2815 Efficiency
F
IGURE
2
90
16V
F
IGURE
3
Negative Output Voltage Change (%)
90
19V
F
IGURE
4
10
8
6
4
2
0
2
–4
–6
–8
–10
0
10
2
30
40
50
2812
2815
2812
80
80
Cond. A
Efficiency (%)
Efficiency (%)
40V
40V
70
28V
70
28V
60
60
Cond. B
50
50
2
4
6
8
10
12
14
2
4
6
8
10
12
14
Output Power (Watts)
Output Power (Watts)
HR122-2812 Efficiency
HR122-2815 Efficiency
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
F
IGURE
5
20
19
18
F
IGURE
6
19
18
F
IGURE
7
Negative Output Voltage Change (%)
15
10
Input Voltage (Volts)
Input Voltage (Volts)
17
16
15
14
13
12
2815
17
2815
16
15
14
13
12
11
2812
5
0
–5
–10
–15
–20
0
20
40
60
80
100
2812
2815
2812
2805
11
Output Load (%)
Positive Output 20% to 80% Load
Negative Output 80% to 20% Load
2
4
6
8
10
12
14
2
4
6
8
10
12
14
Output Power (Watts)
50 mV Drop
Output Power (Watts)
50 mV Drop
HR122 Negative Output Voltage
Cross Regulation
HR121 Low Line Dropout
HR122 Low Line Dropout
F
IGURE
8
F
IGURE
9
F
IGURE
10
B4-50
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.
CRANE [ Crane Aerospace & Electronics. ]
