DC/DC C
ONVERTERS
DUAL OUTPUT MODELS
PARAMETER
OUTPUT VOLTAGE
CONDITION
+V
OUT
– V
OUT
OUTPUT CURRENT
1, 2
OUTPUT POWER
2
+V
OUT
– V
OUT
TOTAL
OUTPUT RIPPLE
VOLTAGE
LINE REGULATION
MIN. TO MAX. V
IN
LOAD REGULATION
NO LOAD TO FULL
CROSS REGULATION
10 kHz TO 2 MHz
+V
OUT
– V
OUT
+V
OUT
– V
OUT
20% TO 80% LOAD
3
50% LOAD
4
INPUT VOLTAGE
CONTINUOUS
TRANSIENT 50 ms
INPUT CURRENT
NO LOAD
FULL LOAD
INHIBITED
10 kHz TO 2 MHz
MIN
11.88
11.82
—
—
—
—
—
—
—
—
—
—
—
16
—
—
—
—
—
78
POWER DISSIPATION
OVERLOAD
SHORT CIRCUIT
START-UP
DELAY
—
—
—
—
—
150
2.8
5
250
—
—
—
—
—
150
2
5
250
ms
W
HR122-2812
TYP
MAX
12.0
12.0
0.5
—
—
—
30
5
30
5
30
5
4
28
—
25
—
1.9
175
81
12.12
12.18
1.0
10.8
10.8
12
60
50
150
50
150
10
5
40
50
35
545
3
240
—
MIN
HR122-2815
TYP
MAX
15.0
15.0
0.4
—
—
—
30
5
30
10
30
4
3
28
—
25
—
1.9
175
83
15.15
15.23
0.8
10.8
10.8
12
60
50
150
50
150
8
5
40
50
35
540
3
240
—
mA
VDC
%
mV
W
A
UNITS
VDC
HR120 SERIES
12 WATT
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
14.85
14.77
—
—
—
—
—
—
—
—
—
—
—
19
—
—
—
—
—
80
mV p-p
mV
INPUT RIPPLE
CURRENT
EFFICIENCY
LOAD FAULT
5
mA p-p
%
Notes
1. Applies to both outputs.
2. Maximum combined output power is 12 watts. A maximum of 90% is available from either output.
3. 20% to 80% load on the positive output and 80% to 20% on the negative output. See Figure 8.
4. 50% load on the positive output and 50% to 20% load on the negative output. 50% load on the negative output and
50% to 20% load on the positive output. See Figure 7.
5. Indefinite short circuit protection not guaranteed above 85°C case temperature.
PIN OUT
Pin
1
2
3
4
5
6
7
8
Single Output
Inhibit
No connection
Output Common
Positive Output
No connection
Case Ground
Input Common
Positive Input
Dual Output
Inhibit
Positive Output
Output Common
Negative Output
No connection
Case Ground
Input Common
Positive Input
Squared corner and dot on
top of cover indicate pin one.
MODEL NUMBER KEY
HR12
Base Model
2 - 28
12
1
2
3
4
5
Number of Outputs
(1 = single, 2 = dual)
Input Voltage
Output Voltage
BOTTOM VIEW
HR120
8
7
6
See Section B8, case E1, for dimensions
F
IGURE
1: P
IN
O
UT
B4-49
INTERPOINT [ INTERPOINT CORPORATION COMPANY ]
