HR121-2812 Datasheet, PDF (3/6 Pages) Crane Aerospace & Electronics. – DC/DC CONVERTERS 28 VOLT INPUT

DC/DC CONVERTERS
HR120 SERIES
12 WATT
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
DUAL OUTPUT MODELS
PARAMETER
CONDITION
OUTPUT VOLTAGE
OUTPUT CURRENT^{1, 2}
OUTPUT POWER²
OUTPUT RIPPLE
VOLTAGE
+V_OUT
– V_OUT
+V_OUT
– V_OUT
TOTAL
10 kHz TO 2 MHz
LINE REGULATION
MIN. TO MAX. V_IN
LOAD REGULATION
NO LOAD TO FULL
CROSS REGULATION
+V_OUT
– V_OUT
+V_OUT
– V_OUT
20% TO 80% LOAD³
50% LOAD⁴
INPUT VOLTAGE
CONTINUOUS
TRANSIENT 50 ms
INPUT CURRENT
NO LOAD
FULL LOAD
INHIBITED
INPUT RIPPLE
CURRENT
10 kHz TO 2 MHz
EFFICIENCY
LOAD FAULT⁵
POWER DISSIPATION
OVERLOAD
SHORT CIRCUIT
START-UP
DELAY
HR122-2812
MIN TYP MAX
11.88 12.0 12.12
11.82 12.0 12.18
—
0.5 1.0
—
— 10.8
—
— 10.8
—
—
12
—
30
60
—
5
50
—
30 150
—
5
50
—
30 150
—
5
10
—
4
5
16
28
40
—
—
50
—
25
35
—
— 545
—
1.9
3
—
175 240
78
81
—
—
—
2.8
—
—
5
—
150 250
HR122-2815
MIN TYP MAX
14.85 15.0 15.15
14.77 15.0 15.23
—
0.4 0.8
—
— 10.8
—
— 10.8
—
—
12
UNITS
VDC
A
W
—
30
60 mV p-p
—
5
50
mV
—
30 150
—
10
50
mV
—
30 150
—
4
8
%
—
3
5
19
28
40
VDC
—
—
50
—
25
35
—
—
540
mA
—
1.9
3
—
175 240 mA p-p
80
83
—
%
—
—
2
W
—
—
5
—
150 250
ms
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 Single Output Dual Output
1
Inhibit
Inhibit
2
No connection Positive Output
3
Output Common Output Common
4
Positive Output Negative Output
5
No connection No connection
6
Case Ground Case Ground
7
Input Common Input Common
8
Positive Input Positive Input
Squared corner and dot on
top of cover indicate pin one.
1
2345
BOTTOM VIEW
HR120
8
7
6
See Section B8, case E1, for dimensions
FIGURE 1: PIN OUT
MODEL NUMBER KEY
Base Model
Number of Outputs
(1 = single, 2 = dual)
HR12 2 - 28 12
Input Voltage
Output Voltage
B4-49