HR122-2812 [CRANE]
DC/DC CONVERTERS 28 VOLT INPUT; DC / DC转换器， 28伏特的输入
| 型号： | HR122-2812 |
| 厂家： | 
Crane Aerospace & Electronics. |
| 描述： | DC/DC CONVERTERS 28 VOLT INPUT |
| 文件： | 总6页 (文件大小：91K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FEATURES
• –40°C to +85°C operation
HR120 SERIES
12 WATT
DC/DC CONVERTERS
28 VOLT NPUT
• 16 to 40 VDC input
(19 to 40 VDC input for
15 volt output models)
• Fully Isolated
I
MODELS
VDC OUTPUT
• Optocoupler feedback
• 600 kHz typical operating frequency
• Topology – Single Ended Forward
• 50 V for up to 50 ms transient protection
• Inhibit function
SINGLE
DUAL
±12
5
12
15
±15
• Indefinite short circuit protection
• Up to 83% efficiency
Size (max.): 1.460 x 1.130 x 0.330 inches (37.08 x 28.70 x 8.38 mm)
See Section B8, case E1 for dimensions.
Weight:
21 grams typical.
Screening: Standard only. See Section C2 for screening description.
DESCRIPTION
The HR120 Series™ of DC/DC converters offers up to 12 watts of
power from single or dual outputs in a single package over a –40°C
to +85°C temperature range. Thick film hybrid manufacturing tech-
nology produces high levels of miniaturization, giving the HR120
Series converters a low profile (0.330 inch), small board area (1.65
Indefinite short circuit protection and overload protection are
provided by sensing output load current and restricting the output
current to approximately 125% of full load output current. Since the
output current is sensed in the secondary stage, the result is a
predictable, constant output current control with no foldback char-
acteristics. HR120 converters are provided with internal filtering
elements on both the input and output to help reduce the need for
external components.
3
square inches), and high power density (22 watt/in ).
The parts are packaged in sealed steel enclosures, making them
ideal for use in high reliability applications. Each unit is guaranteed
to pass a hermeticity test with a maximum leak rate of 0.001 atm-
cc/sec.
WIDE VOLTAGE RANGE
The 5 and 12 volt output models provide full power operation over
the input voltage range of 16 to 40 volts (19 to 40 volts for 15 volt
output models). Operation below 16 volts (or below 19 volts for the
15 volt output models), including operation in MIL-STD-704E emer-
gency power conditions, is possible with derated output power.
Please refer to the low voltage drop-out graphs, Figures 9 and 10.
DESIGN METHODOLOGY
The HR120 converters are switching regulators which use a quasi-
square wave, single ended forward converter design with a nominal
switching frequency of 600 kHz. Isolation between input and output
circuits is provided with a transformer in the forward power loop and
a temperature insensitive optical link in the feedback control loop.
Output regulation is accomplished with constant frequency pulse
width modulation. Both line and load regulation are typically within
10 mV.
The HR120 Series provides full power operation at case tempera-
tures from –40°C up to +85°C. Depending on operating levels, air
flow, and ambient temperature, heat sinking may be required.
INHIBIT FEATURE
On dual output models, the positive output is independently regu-
lated and the negative output is cross-regulated. Figures 7 and 8
illustrate what effects load changes have on the negative output.
An inhibit terminal is provided that can be used to disable internal
switching, resulting in a very low quiescent input current. An open
collector TTL compatible low (≤0.8 V) is required to control the
inhibit function. This level may be supplied by an open collector gate
since the inhibit pin is provided with an internal pull-up resistor.
B4-47
HR120 SERIES
12 WATT
DC/DC CONVERTERS
INHIBIT
TYPICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Inhibit TTL Open Collector
• Logic low (output disabled)
Logic low 0.8 V max
Output Voltage Temperature Coefficient
• 150 ppm/°C, typical
Input to Output Capacitance
• 50 pF, typical
Current Limit
• 125% of full load, typical
Isolation
• 16 to 40 VDC
• 19 to 40 VDC 15 volt outputs
Output Power
• 12 watts (10 watts HR121-2805)
Lead Soldering Temperature (10 sec per pin)
• 300°C
Inhibit pin current 4 mA max
•
Referenced to input common
• Logic high (output enabled)
Open collector
Storage Temperature Range (Case)
• –55°C to +125°C
• 100 megohm minimum at 500 V
Conversion Frequency
• 600 kHz typical
Inhibit Pin Voltage (unit enabled)
• 8 to 11 V
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range
• 16 to 40 VDC continuous
• 19 to 40 VDC continuous 15 volt outputs
• 50 V for 50 msec transient
Case Operating Temperature (Tc)
• –40°C to +85°C full power
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
SINGLE OUTPUT MODELS
PARAMETER
HR121-2805
HR121-2812
TYP MAX
HR121-2815
TYP MAX
CONDITIONS
MIN
4.95
—
TYP
5.0
—
MAX
MIN
11.88
—
MIN
14.85
—
UNITS
VDC
A
OUTPUT VOLTAGE
OUTPUT CURRENT
OUTPUT POWER
OUTPUT RIPPLE
5.05
2.0
10
60
50
50
40
50
30
478
3
12
—
—
30
10
10
28
—
20
—
2
12.12
1.0
12
15
—
—
25
10
10
28
—
20
—
2
15.15
0.8
12
MIN. TO MAX. V
—
—
—
—
W
IN
10 kHz to 2 MHz
MIN. TO MAX. V
—
40
10
10
28
—
—
60
—
50
mV p-p
mV
LINE REGULATION
LOAD REGULATION
INPUT VOLTAGE
—
—
50
—
50
IN
NO LOAD TO FULL
NO LOAD TO FULL
TRANSIENT 50 ms
NO LOAD
—
—
50
—
50
mV
16
—
16
—
40
19
40
VDC
mA
50
—
50
INPUT CURRENT
—
20
—
—
30
—
30
FULL LOAD
—
—
548
3
—
535
3
INHIBITED
—
2
—
—
INPUT RIPPLE
CURRENT
10 kHz TO 2 MHz
—
135
77
180
—
—
150
81
200
—
—
150
83
220
—
mA p-p
%
EFFICIENCY
74
77
80
1
LOAD FAULT
POWER DISSIPATION
OVERLOAD
—
—
—
—
–
5
—
—
—
—
—
80
5
—
—
—
—
—
5
2
W
SHORT CIRCUIT
DELAY
3.5
300
2.8
200
START-UP
Notes
180
150
250
ms
1. Indefinite short circuit protection not guaranteed above 85°C case temperature.
B4-48
HR120 SERIES
12 WATT
DC/DC CONVERTERS
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
DUAL OUTPUT MODELS
PARAMETER
HR122-2812
TYP
HR122-2815
CONDITION
MIN
11.88
11.82
—
MAX
MIN
14.85
14.77
—
TYP
15.0
15.0
0.4
—
MAX
UNITS
OUTPUT VOLTAGE
+V
12.0
12.0
0.5
—
12.12
12.18
1.0
15.15
15.23
0.8
OUT
VDC
– V
OUT
1, 2
OUTPUT CURRENT
A
2
OUTPUT POWER
+V
—
10.8
10.8
12
—
10.8
10.8
12
OUT
– V
—
—
—
—
W
OUT
TOTAL
—
—
—
—
OUTPUT RIPPLE
VOLTAGE
10 kHz TO 2 MHz
—
—
—
—
—
—
—
16
—
30
5
60
50
150
50
150
10
5
—
—
—
—
—
—
—
19
—
30
5
60
50
150
50
150
8
mV p-p
mV
LINE REGULATION
+V
OUT
MIN. TO MAX. V
IN
– V
30
5
30
10
30
4
OUT
LOAD REGULATION
NO LOAD TO FULL
CROSS REGULATION
+V
OUT
mV
%
– V
30
5
OUT
3
20% TO 80% LOAD
4
50% LOAD
4
3
5
INPUT VOLTAGE
INPUT CURRENT
CONTINUOUS
28
—
40
50
28
—
40
50
VDC
TRANSIENT 50 ms
NO LOAD
FULL LOAD
INHIBITED
—
—
—
25
—
35
545
3
—
—
—
25
—
35
540
3
mA
1.9
1.9
INPUT RIPPLE
CURRENT
10 kHz TO 2 MHz
—
175
81
240
—
—
175
83
240
—
mA p-p
%
EFFICIENCY
78
80
5
LOAD FAULT
POWER DISSIPATION
OVERLOAD
—
—
—
—
—
2.8
5
—
—
—
—
—
2
5
W
SHORT CIRCUIT
DELAY
START-UP
150
250
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
Squared corner and dot on
top of cover indicate pin one.
Pin
1
Single Output
Inhibit
Dual Output
Inhibit
MODEL NUMBER KEY
HR12
2 - 28 12
Base Model
2
No connection
Positive Output
Number of Outputs
(1 = single, 2 = dual)
1
8
2
3
4
5
6
3
Output Common Output Common
4
Positive Output
No connection
Case Ground
Input Common
Positive Input
Negative Output
No connection
Case Ground
Input Common
Positive Input
Input Voltage
BOTTOM VIEW
HR120
5
6
Output Voltage
7
7
8
See Section B8, case E1, for dimensions
FIGURE 1: PIN OUT
B4-49
HR120 SERIES
12 WATT
DC/DC CONVERTERS
Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, unless otherwise specified.
90
80
70
60
50
90
80
70
60
50
90
80
70
60
50
16V
19V
16V
40V
40V
28V
40V
28V
28V
10
2
4
6
8
10 12 14
2
6
8
12
14
4
2
4
6
8
10 12 14
Output Power (Watts)
HR121-2805 Efficiency
FIGURE 2
Output Power (Watts)
HR121-2812 Efficiency
FIGURE 3
Output Power (Watts)
HR121-2815 Efficiency
FIGURE 4
10
8
90
80
70
60
50
90
80
70
60
50
19V
16V
6
Cond. A
2812
4
40V
40V
2
2815
0
2
28V
28V
–4
–6
–8
–10
2812
Cond. B
0
10
2
30
40
50
2
4
6
8
10 12 14
2
4
6
8
10 12 14
Output Load (%)
Output Power (Watts)
Output Power (Watts)
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
HR122-2815 Efficiency
HR122-2812 Efficiency
Cross Regulation
FIGURE 5
FIGURE 6
FIGURE 7
20
15
19
18
19
18
17
16
15
14
13
12
11
10
2815
17
2815
16
5
0
15
14
2815
2812
2805
–5
2812
–10
–15
–20
13
2812
12
11
0
20
40
60
80
100
2
4
6
8
10 12 14
2
4
6
8
10 12 14
Output Load (%)
Output Power (Watts)
50 mV Drop
HR122 Low Line Dropout
Output Power (Watts)
50 mV Drop
HR121 Low Line Dropout
Positive Output 20% to 80% Load
Negative Output 80% to 20% Load
HR122 Negative Output Voltage
Cross Regulation
FIGURE 8
FIGURE 9
FIGURE 10
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
B4-50
or specifications without notice. HR120 Series is
a trademark of Interpoint.
Copyright © 1994 - 1999 Interpoint. All rights reserved.
CASE E
CASES
Squared corner and dot on top
of case indicate pin one.
Materials
Header Cold Rolled Steel/Nickel/Gold
Cover Kovar/Nickel
(SMHF Series
CASE E
Cold Rolled Steel/Nickel/Gold)
#52 alloy/Gold
compression glass seal
BOTTOM VIEW
See Figures 16 – 18
for pin configurations.
Pins
1.130 max
(28.70)
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.3) for two decimal places
unless otherwise specified
1.460 max
(37.08)
CAUTION
Heat from reflow or wave soldering may damage
the device. Solder pins individually with heat
application not exceeding 300°C for 10 seconds
per pin.
FIGURE 15: CASE E MAXIMUM DIMENSIONS
BOTTOM VIEW CASE E1
MHF+ Series Single and Dual: Screening – Standard, ES, or 883
MHF Series and LIM5050 Module: Screening – Standard or ES
SMHF Series Single and Dual and SLIM5050 Module:
Screening – Space Standard, H, or K
HR120 Series: No screening options
Projection Weld
Seam Seal
Squared corner and dot on top
of case indicate pin one.
0.960
(24.38)
1
2
3
4
5
0.030 dia.
(0.76)
8
7
6
0.160
(4.06)
0.000
FIGURE 16: CASE E1
Note: Although every effort has been made to render the case drawings at actual size, variations in the printing process may cause some distortion. Please refer
to the numerical dimensions for accuracy.
B8-10
QA SCREENING
HR PRODUCTS
HR PRODUCTS
TEST (HR products)
PRE-CAP INSPECTION
Method 2017
STANDARD
yes
yes
yes
yes
FINAL ELECTRICAL TEST MIL-PRF-38534, Group A
Subgroups 1 and 4: +25°C case
HERMETICITY TESTING
-3
Gross Leak, Dip (1 x 10 )
FINAL VISUAL INSPECTION
Method 2009
Test methods are referenced to MIL-STD-883 as determined by MIL-
PRF-38534.
Applies to the following products:
HR700 Series
HR300 Series
HR150 Series
HR120 Series
HR40 Series
C2-13
相关型号：
HR122-28L15
2-OUTPUT 12W DC-DC REG PWR SUPPLY MODULE, 0.325 INCH HEIGHT, HERMETIC SEALED, METAL, PACKAGE-8
CRANE
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