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 FEATURES
* -40C to +85C operation * 16 to 40 VDC input (19 to 40 VDC input for 15 volt output models) * Fully Isolated * Optocoupler feedback * 600 kHz typical operating frequency * Topology - Single Ended Forward * 50 V for up to 50 ms transient protection * Inhibit function * Indefinite short circuit protection * Up to 83% efficiency
DC/DC CONVERTERS 28 VOLT INPUT
HR120 SERIES 12 WATT
MODELS
VDC OUTPUT SINGLE 5 12 15 DUAL 12 15
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 SeriesTM of DC/DC converters offers up to 12 watts of power from single or dual outputs in a single package over a -40C to +85C temperature range. Thick film hybrid manufacturing technology produces high levels of miniaturization, giving the HR120 Series converters a low profile (0.330 inch), small board area (1.65 square inches), and high power density (22 watt/in3). 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 atmcc/sec. 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 characteristics. HR120 converters are provided with internal filtering elements on both the input and output to help reduce the need for external components.
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 emergency power conditions, is possible with derated output power. Please refer to the low voltage drop-out graphs, Figures 9 and 10. The HR120 Series provides full power operation at case temperatures from -40C up to +85C. Depending on operating levels, air flow, and ambient temperature, heat sinking may be required.
DESIGN METHODOLOGY
The HR120 converters are switching regulators which use a quasisquare 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. On dual output models, the positive output is independently regulated and the negative output is cross-regulated. Figures 7 and 8 illustrate what effects load changes have on the negative output.
INHIBIT FEATURE
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
ABSOLUTE MAXIMUM RATINGS
Input Voltage * 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) * 300C Storage Temperature Range (Case) * -55C to +125C
DC/DC CONVERTERS
INHIBIT
Inhibit TTL Open Collector * Logic low (output disabled) Logic low 0.8 V max Inhibit pin current 4 mA max * Referenced to input common * Logic high (output enabled) Open collector
TYPICAL CHARACTERISTICS
Output Voltage Temperature Coefficient * 150 ppm/C, typical Input to Output Capacitance * 50 pF, typical Current Limit * 125% of full load, typical Isolation * 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) * -40C to +85C full power
Electrical Characteristics: 25C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
SINGLE OUTPUT MODELS PARAMETER OUTPUT VOLTAGE OUTPUT CURRENT OUTPUT POWER OUTPUT RIPPLE LINE REGULATION LOAD REGULATION INPUT VOLTAGE MIN. TO MAX. VIN 10 kHz to 2 MHz MIN. TO MAX. VIN NO LOAD TO FULL NO LOAD TO FULL TRANSIENT 50 ms INPUT CURRENT NO LOAD FULL LOAD INHIBITED INPUT RIPPLE CURRENT EFFICIENCY LOAD FAULT1 POWER DISSIPATION OVERLOAD SHORT CIRCUIT START-UP DELAY -- -- -- -- - 180 5 3.5 300 -- -- -- -- -- 80 5 2.8 200 -- -- -- -- -- 150 5 2 250 ms W 10 kHz TO 2 MHz -- 74 135 77 180 -- -- 77 150 81 200 -- -- 80 150 83 220 -- mA p-p % CONDITIONS HR121-2805 MIN 4.95 -- -- -- -- -- 16 -- -- -- -- TYP 5.0 -- -- 40 10 10 28 -- 20 -- 2 MAX 5.05 2.0 10 60 50 50 40 50 30 478 3 HR121-2812 MIN 11.88 -- -- -- -- -- 16 -- -- -- -- TYP 12 -- -- 30 10 10 28 -- 20 -- 2 MAX 12.12 1.0 12 60 50 50 40 50 30 548 3 MIN 14.85 -- -- -- -- -- 19 -- -- -- -- HR121-2815 TYP 15 -- -- 25 10 10 28 -- 20 -- 2 MAX 15.15 0.8 12 50 50 50 40 50 30 535 3 mA UNITS VDC A W mV p-p mV mV VDC
Notes 1. Indefinite short circuit protection not guaranteed above 85C case temperature.
B4-48
DC/DC CONVERTERS
DUAL OUTPUT MODELS PARAMETER OUTPUT VOLTAGE CONDITION +VOUT - VOUT OUTPUT CURRENT1, 2 OUTPUT POWER2 +VOUT - VOUT TOTAL OUTPUT RIPPLE VOLTAGE LINE REGULATION MIN. TO MAX. VIN LOAD REGULATION NO LOAD TO FULL CROSS REGULATION 10 kHz TO 2 MHz +VOUT - VOUT +VOUT - VOUT 20% TO 80% LOAD3 50% LOAD4 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: 25C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
14.85 14.77 -- -- -- -- -- -- -- -- -- -- -- 19 -- -- -- -- -- 80
mV p-p mV
INPUT RIPPLE CURRENT EFFICIENCY LOAD FAULT5 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 85C 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
FIGURE 1: PIN OUT
B4-49
DC/DC CONVERTERS
90 90
16V
HR120 SERIES 12 WATT
90
19V
Typical Performance Curves: 25C 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
FIGURE 2
90
16V
FIGURE 3
Negative Output Voltage Change (%)
90
19V
FIGURE 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
FIGURE 5
20 19 18
FIGURE 6
19 18
FIGURE 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
FIGURE 8
FIGURE 9
FIGURE 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 (c) 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 Cold Rolled Steel/Nickel/Gold) Pins #52 alloy/Gold compression glass seal 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 CAUTION Heat from reflow or wave soldering may damage the device. Solder pins individually with heat application not exceeding 300C for 10 seconds per pin.
CASE E BOTTOM VIEW See Figures 16 - 18 for pin configurations.
1.130 max (28.70)
1.460 max (37.08)
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
Seam Seal Projection Weld Squared corner and dot on top of case indicate pin one.
0.960 (24.38) 0.030 dia. (0.76)
1
2
3
4
5
0.160 (4.06) 0.000 0.330 max (8.38) 0.000 0.25 (6.35) 0.25 (6.35) 0.330 max (8.38) 0.000 0.000
8
7
6
0.205 (5.21)
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
0.505 (12.83) 0.705 (17.91) 0.905 (22.99) 1.105 (28.07)
QA SCREENING HR PRODUCTS
HR PRODUCTS
TEST (HR products) PRE-CAP INSPECTION Method 2017 FINAL ELECTRICAL TEST MIL-PRF-38534, Group A Subgroups 1 and 4: +25C case HERMETICITY TESTING Gross Leak, Dip (1 x 10-3) FINAL VISUAL INSPECTION Method 2009 STANDARD yes yes yes yes
Test methods are referenced to MIL-STD-883 as determined by MILPRF-38534.
Applies to the following products: HR700 Series HR300 Series HR150 Series HR120 Series HR40 Series
C2-13


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