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FEATURES
* * * * * -40C to +85C operation 16 to 32 VDC input voltage Fully isolated Opto-coupler feedback Switching frequency Single and dual outputs typical 80 kHz, variable freq. Triple output 200 kHz, fixed Topology - Flyback Inhibit function Indefinite short circuit protection Up to 75% efficiency Requires external capacitors
DC/DC CONVERTERS 28 VOLT INPUT
HR40 SERIES 4 WATT
MODELS
VDC OUTPUT SINGLE DUAL TRIPLE 5 12 +5 & 12 15 +5 & 15
* * * * *
Size (max.): 1.075 x 1.075 x 0.370 inches (27.31 x 27.31 x 9.40 mm) See Section B8, case C2, for dimensions. Weight: 20 grams maximum Screening: Standard only. See Section C2 for screening description.
DESCRIPTION
The HR40 SeriesTM DC/DC converters offer the high efficiencies associated with switching regulators, yet have full isolation of input and output grounds. The units are built using thick-film hybrid technology and are sealed in metal packages for high-reliability applications. All models are guaranteed to pass a gross leak test (maximum leak rate of 1 x 10-3 atm-cc/sec). The HR40 Series devices are flyback energy storage switching regulators which require a minimum of components resulting in small package size. Single and dual models self-oscillate at an operating frequency which is an approximate inverse function of the load. At full load, the frequency is typically 80 kHz for single and dual output models. Triple output models operate at a fixed frequency of approximately 200 kHz. A transformer in the forward power circuit and an opto-coupler in the feedback/control loop maintain input to output isolation. Models are available with single 5 volt, dual 12 or 15 volt, or triple (+5 and either 12 or 15) outputs with an input voltage range of 16 to 32 VDC. Output power of up to 4 watts is available from the dual output models for either balanced or unbalanced loads; however, at least 25% of the total load should be on the positive output. The single output device can provide 3.5 watts, and the triple output can supply up to 3.2 watts. The high efficiency is almost constant over the entire input voltage range and from approximately 25% of full load to full load. This makes the unit ideal for battery applications. An open collector TTL inhibit is provided to allow power shutdown and startup from a logic input. An open circuit on the inhibit terminal (pin 15) gives normal operation, and a TTL low level shuts down the converter. The inhibit pin has an open circuit voltage of 12 to 28 V. Input current in the shutdown mode will be less than 15 mA. Current limiting is provided on each output for indefinite short circuit protection. Due to the high efficiency, heat sinking requirements are minimized, but consideration should be given to removing self-generated heat when operating these devices at maximum ratings. To increase dissipation, heat conducting material (PCB, copper sheet, heat sink, etc.) should be brought into contact with the converter's baseplate. The converter can be operated at full load at a case temperature of 85C, with the output power derated linearly to zero at 105C.
WARNING: EXTERNAL CAPACITORS REQUIRED
External capacitors are required on the outputs. Operating the unit without external capacitors will result in damage to the internal circuitry. Minimum recommended capacitor values are given in Tables 1 and 2. For optimum performance, low ESR (Equivalent Series Resistance) solid tantalum capacitors are required. The specifications on the following pages are based on the use of highquality solid tantalums. Operation with different types of capacitors will seriously affect performance.
B4-51
HR40 SERIES 4 WATT
ABSOLUTE MAXIMUM RATINGS
Input Voltage * 16 to 32 VDC Output Power * 3.2 to 4 watts depending on model Lead Soldering Temperature (10 sec) * 300C Storage Temperature Range (Case) * -40C to +125C
DC/DC CONVERTERS
INHIBIT
Inhibit TTL Open Collector * Logic low (output disabled) 0.8 V * Referenced to input common * Logic high (output enabled) 12 V
TYPICAL CHARACTERISTICS
Output Voltage Temperature Coefficient * HR41-2805 100 ppm/C typ, 200 max. * HR42-28XX 50 ppm/C typ. * HR43-28XX 100 ppm/C typ. Input to Output Capacitance * 60 pF typical Isolation * 100 megohm minimum at 500 V Conversion Frequency * Single and dual output models, 80 kHz at full load typical, variable frequency * Triple output models, 200 kHz typical fixed frequency Inhibit Pin Voltage (unit enabled) * 12 to 28 V
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range * 16 to 32 VDC continuous * 40 V for 50 ms transient Case Operating Temperature (Tc) * -40C to +85C full power * -40C to +105C absolute Derating Output Power/Current * Linearly from 100% at 85C to 0% at 105C
WARNING: EXTERNAL CAPACITORS REQUIRED Electrical Characteristics: 25C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
SINGLE AND DUAL OUTPUT MODELS PARAMETER1 OUTPUT VOLTAGE OUTPUT CURRENT OUTPUT POWER2 OUTPUT RIPPLE LINE REGULATION LOAD REGULATION INPUT VOLTAGE CONDITIONS POUT = 2 W 18 TO 32 VIN Tc = -40C TO +85C BW = 1 MHz 18 - 32 VIN, POUT = 2 W NO LOAD TO FULL Tc = -40C TO +85C TRANSIENT 50 ms INPUT CURRENT NO LOAD FULL LOAD INHIBITED EFFICIENCY FULL LOAD MIN 4.90 -- -- -- -- -- 16 -- -- -- -- 68 HR41-2805 TYP 5.0 -- -- 75 5 25 28 -- 7 -- -- 72 MAX 5.10 700 3.5 150 10 50 32 40 10 192 15 -- MIN 11.88 -- -- -- -- -- 16 -- -- -- -- 70 HR42-2812 TYP 12 -- -- 75 10 12 28 -- 10 -- -- 75 MAX 12.12 167 4.0 150 20 24 32 40 15 213 15 -- MIN 14.85 -- -- -- -- -- 16 -- -- -- -- 70 HR42-2815 TYP 15 -- -- 75 10 12 28 -- 10 -- -- 75 MAX 15.15 133 4.0 150 20 24 32 40 15 213 15 -- % mA UNITS VDC mA W mV p-p mV mV VDC V
Notes 1. External capacitors required to prevent damage to internal circuitry (see Table 1 for specifications).
2. Dual output models deliver up to 4 watts total for balanced or unbalanced loads, however, the positive output should carry at least 25% of the total load.
SINGLE AND DUAL OUTPUT EXTERNAL CAPACITORS
OPERATION WITHOUT EXTERNAL CAPACITORS WILL RESULT IN DAMAGE TO THE INTERNAL CIRCUITRY. TABLE 1: EXTERNAL CAPACITOR REQUIREMENTS
Required Connection Positive Output (12 & 13) to Output Common (8 & 9) Positive Output (10) to 2 Dual Outputs Output Common (8) HR42-2812 External Capacitor (14) to and Output Common (8)3 HR42-2815 Negative Output (12) to Output Common (8) Model Single Output HR41-2805 Minimum Capacitor Value1 220 F, 10 V 100 F, 25 V 100 F, 25 V 10 F, 25 V
POSITIVE INPUT 1, 2 INHIBIT 15 17, 18 INPUT COMMON FEEDBACK POSITIVE OUTPUT 10 OUTPUT COMMON 8
LOGIC
TIMING CONTROL SWITCH VOLTAGE REGULATOR
+ +
EXTERNAL CAPACITORS 100F
NEGATIVE OUTPUT 12 14
10F
+
100F
Table 1 Notes 1. Capacitors should be high quality, low ESR components -- solid tantalum is recommended. 2. See Figure 1 for connection diagram 3. Place positive side of capacitor toward pin 8.
EXTERNAL CAPACITOR TERMINAL
FIGURE 1: DUAL OUTPUT EXTERNAL CAPACITOR CONNECTIONS
B4-52
DC/DC CONVERTERS
WARNING: EXTERNAL CAPACITORS REQUIRED
TRIPLE OUTPUT MODELS PARAMETER1 OUTPUT VOLTAGE
2
HR40 SERIES 4 WATT
Electrical Characteristics: 25C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
HR43-2812 CONDITIONS POUT = 2 W BALANCED LOAD OUTPUT CURRENT OUTPUT POWER OUTPUT RIPPLE 18 TO 32 VIN MAIN AUX MAIN AUX MIN 4.9 11.5 10.0 -- -- -- -- -- -- -- -- 16 -- -- -- -- 68 TYP 5.0 12.0 -- -- -- 50 50 5 3 15 15 28 -- 10 -- -- 70 MAX 5.1 12.5 400 50.0 3.2 100 100 10 6 30 30 32 40 20 176 15 -- MIN 4.9 14.5 10.0 -- -- -- -- -- -- -- -- 16 -- -- -- -- 68 HR43-2815 TYP 5.0 MAX 5.1 UNITS VDC
15.0 15.5 -- -- -- 50 50 5 3 15 12 28 -- 10 -- -- 70 400 40.0 3.2 100 100 10 7.5 30 24 32 40 20 176 15 -- % mA VDC V mV mV W mV p-p mA
Tc = -40C TO +85C BW DC TO 1 MHz POUT = 2 W 18 TO 32 VIN MAIN AUX
LINE REGULATION
MAIN AUX MAIN AUX
LOAD REGULATION
NO LOAD TO FULL
INPUT VOLTAGE
Tc = -40C TO +85C TRANSIENT 50 ms NO LOAD
INPUT CURRENT
FULL LOAD INHIBITED
EFFICIENCY
FULL LOAD
Notes 1. External capacitors required to prevent damage to internal circuitry 2. Minimum load required on main output for full power auxiliary oper(see Table 2 for specifications). ation.
TRIPLE OUTPUT EXTERNAL CAPACITOR
OPERATION WITHOUT EXTERNAL CAPACITORS WILL RESULT IN DAMAGE TO THE INTERNAL CIRCUITRY. TABLE 2: EXTERNAL CAPACITOR REQUIREMENTS
FEEDBACK
Model HR43-2812 and HR43-2815
Required Connection1 Positive 5 VDC Output (9) to Output Common (6 or 7)
Minimum Capacitor Value2 220 F, 10 V
POSITIVE INPUT 1, 2 INHIBIT 15 INPUT COMMON 17, 18
+5 OUTPUT 9 REF. & COMP OUTPUT COMMON 6, 7 8 POSITIVE AUXILIARY OUTPUT 5 NEGATIVE AUXILIARY OUTPUT 220F EXTERNAL CAPACITOR
LOGIC
TIMING CONTROL SWITCH
Table 2 Notes 1. See Figure 2 for connection diagram. 2. Capacitors should be high quality, low ESR components -- solid tantalum is recommended.
DUAL TRACKING REGULATOR
FIGURE 2: TRIPLE OUTPUT EXTERNAL CAPACITOR CONNECTIONS
B4-53
HR40 SERIES 4 WATT
DC/DC CONVERTERS
PIN OUT
WARNING: EXTERNAL CAPACITORS REQUIRED OPERATION WITHOUT EXTERNAL CAPACITORS WILL RESULT IN DAMAGE TO THE INTERNAL CIRCUITRY.
Pin 1, 21 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17, 181
Single Output Positive Input No connection Case No connection No connection No connection Output Common3 Output Common3 No connection No connection Positive Output3 Positive Output3 No connection Inhibit No connection Input Common
Dual Output Positive Input No connection Case No connection No Connection No connection Output Common No connection Positive Output No connection Negative Output No connection Ext. Capacitor Inhibit No connection Input Common
Triple Output Positive Input No connection Case Negative Aux. Output Output Common Main2 Output Common Aux.2 Positive Aux. Output +5 VDC Output No connection No connection No connection
See Section B8. case C2, for dimensions 18 17 10 12 9
Dot on top of cover indicates pin one.
BOTTOM VIEW HR40
No connection No connection Inhibit No connection Input Common
FIGURE 3: PIN OUT
Pin Out Notes 1. Make external connection to both pins on all models. Pins 1 and 2 positive input Pins 17 and 18 input common 2. Pins 6 and 7 on triple output models are connected internally. 3. On the HR41-2805: Make external connections to both output common pins (8 and 9). Make external connections to both positive output pins (12 and 13).
MODEL NUMBERING KEY
HR4 Base Model Number of Outputs (1 = single, 2 = dual, 3 = triple) Input Voltage Output Voltage (Auxiliary output on triple output models) 3 - 28 12
B4-54
24021-009-DTS Rev A DQ# 2012 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. HR40 Series is a trademark of Interpoint. Copyright (c) 1994 - 1999 Interpoint. All rights reserved.
CASE C
Dot on top of case indicates pin one
CASES
BOTTOM VIEW CASE C1 MSA Series: Screening - Standard, ES, or 883 SMSA Series: Screening - Space Standard, H, or K
Seam Seal Projection Weld
0.932 (23.67) 0.025 (0.64) dia.
CASE C BOTTOM VIEW See Figures 9 - 11 for pin configurations.
Squared corner and dot on top of case indicate pin one.
1 2 3 4 5
1.075 max (27.31)
1.075 max (27.31) Materials Header Case C1 Cold Rolled Steel/Nickel/Gold Cases C2 and C3 Kovar/Nickel/Tin Cover Case C1 Cold Rolled Steel/Nickel Cases C2 and C3 Kovar/Nickel/Tin Pins Case C1 Copper/Nickel/Gold Cases C2 and C3 Kovar/Nickel/Gold, matched 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.
0.205 0.010 (5.21 0.25) 0.270 max. (6.86) 0.000 0.205 0.010 (5.21 0.25) 0.270 max. (6.86) 0.000
0.132 (3.35) 0.000 0.000
8
7
6
0.132 (3.35)
0.332 (8.43)
0.532 (13.51)
0.732 (18.59)
FIGURE 9: CASE C1
BOTTOM VIEW CASE C2 MSR Series: Screening - Standard or ES HR40 Series: No screening options
0.018 0.002 dia. (0.46 0.05)
Dot on top of case indicates pin one
12 0.800 (20.32 9
18 17
0.932 (23.67) 10 34 65
0.205 0.010 (5.21 0.25)
0.370 max. (9.40) 0.350 (8.89)
Marker bead on pin 18
0.100 (2.54) Pins equally spaced 0.800 (20.32)
FIGURE 10: CASE C2
FIGURE 8: CASE C MAXIMUM DIMENSIONS
Seam Seal
BOTTOM VIEW CASE C3 MSF EMI Filter: Screening - Standard or ES
0.018 0.002 dia. (0.46 0.05)
0.000
Dot on top of case indicates pin one
12 0.800 (20.32
98 0.100 (2.54)
7
FIGURE 11: CASE C3
B8-8
0.800 0.600 (20.32) (15.24)
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.
0.205 0.010 (5.21 0.25)
0.205 0.010 (5.21 0.25)
0.370 max. (9.40) 0.350 (8.89)
0.365 max. (9.27)
0.000
0.000
0.300 (7.62)
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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