FEATURES • • • • • • • • • • –40°C to +85°C 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 HR40 SERIES 4 WATT DC/DC CONVERTERS 28 VOLT INPUT 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 Series™ 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). 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. 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. 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 85°C, with the output power derated linearly to zero at 105°C. 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. 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 DC/DC CONVERTERS INHIBIT ABSOLUTE MAXIMUM RATINGS 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 Inhibit TTL Open Collector • Logic low (output disabled) ≤ 0.8 V • Referenced to input common • Logic high (output enabled) ≥ 12 V Input Voltage • 16 to 32 VDC Output Power • 3.2 to 4 watts depending on model Lead Soldering Temperature (10 sec) • 300°C Storage Temperature Range (Case) • –40°C to +125°C RECOMMENDED OPERATING CONDITIONS Input Voltage Range • 16 to 32 VDC continuous • 40 V for 50 ms transient Case Operating Temperature (Tc) • –40°C to +85°C full power • –40°C to +105°C absolute Derating Output Power/Current • Linearly from 100% at 85°C to 0% at 105°C WARNING: EXTERNAL CAPACITORS REQUIRED Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. SINGLE AND DUAL OUTPUT MODELS PARAMETER1 HR41-2805 HR42-2812 HR42-2815 CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS OUTPUT VOLTAGE POUT = 2 W 4.90 5.0 5.10 ±11.88 ±12 ±12.12 ±14.85 ±15 ±15.15 VDC OUTPUT CURRENT 18 TO 32 VIN — — 700 — — ±167 — — ±133 mA Tc = –40°C TO +85°C — — 3.5 — — 4.0 — — 4.0 W BW = 1 MHz — 75 150 — 75 150 — 75 150 mV p-p LINE REGULATION 18 - 32 VIN, POUT = 2 W — 5 10 — 10 20 — 10 20 mV LOAD REGULATION NO LOAD TO FULL — 25 50 — 12 24 — 12 24 mV Tc = –40°C TO +85°C 16 28 32 16 28 32 16 28 32 VDC TRANSIENT 50 ms — — 40 — — 40 — — 40 V NO LOAD — 7 10 — 10 15 — 10 15 OUTPUT POWER2 OUTPUT RIPPLE INPUT VOLTAGE INPUT CURRENT EFFICIENCY FULL LOAD — — 192 — — 213 — — 213 INHIBITED — — 15 — — 15 — — 15 FULL LOAD 68 72 — 70 75 — 70 75 — Notes 1. External capacitors required to prevent damage to internal circuitry (see Table 1 for specifications). mA % 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 µF, 10 V 100 µF, 25 V 100 µF, 25 V 10 µF, 25 V 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. B4-52 FEEDBACK POSITIVE INPUT 1, 2 INHIBIT 15 17, 18 INPUT COMMON POSITIVE OUTPUT 10 LOGIC OUTPUT COMMON 8 TIMING CONTROL SWITCH + + VOLTAGE REGULATOR NEGATIVE OUTPUT 12 EXTERNAL CAPACITORS 100µF 10µF + 100µF 14 EXTERNAL CAPACITOR TERMINAL FIGURE 1: DUAL OUTPUT EXTERNAL CAPACITOR CONNECTIONS HR40 SERIES 4 WATT DC/DC CONVERTERS WARNING: EXTERNAL CAPACITORS REQUIRED Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. TRIPLE OUTPUT MODELS HR43-2812 PARAMETER1 CONDITIONS POUT = 2 W OUTPUT VOLTAGE BALANCED LOAD 2 OUTPUT CURRENT OUTPUT POWER OUTPUT RIPPLE LINE REGULATION LOAD REGULATION INPUT VOLTAGE 18 TO 32 VIN HR43-2815 MIN TYP MAX MIN TYP MAX MAIN 4.9 5.0 5.1 4.9 5.0 5.1 AUX ±11.5 ±12.0 ±12.5 ±14.5 MAIN 10.0 — 400 10.0 — 400 AUX — — ±50.0 — — ±40.0 Tc = –40°C TO +85°C VDC ±15.0 ±15.5 — — 3.2 — — 3.2 MAIN — 50 100 — 50 100 ± AUX — 50 100 — 50 100 BW DC TO 1 MHz UNITS mA W mV p-p POUT = 2 W MAIN — 5 10 — 5 10 18 TO 32 VIN ± AUX — 3 6 — 3 7.5 MAIN — 15 30 — 15 30 ± AUX — 15 30 — 12 24 Tc = –40°C TO +85°C 16 28 32 16 28 32 VDC TRANSIENT 50 ms — — 40 — — 40 V NO LOAD — 10 20 — 10 20 NO LOAD TO FULL INPUT CURRENT EFFICIENCY FULL LOAD — — 176 — — 176 INHIBITED — — 15 — — 15 FULL LOAD 68 70 — 68 70 — mV mV mA % 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 Minimum Capacitor Value2 Positive 5 VDC Output (9) to Output Common (6 or 7) 220 µF, 10 V Table 2 Notes 1. See Figure 2 for connection diagram. 2. Capacitors should be high quality, low ESR components — solid tantalum is recommended. POSITIVE INPUT 1, 2 INHIBIT 15 INPUT COMMON 17, 18 +5 OUTPUT 9 LOGIC TIMING CONTROL SWITCH REF. & COMP DUAL TRACKING REGULATOR OUTPUT COMMON 6, 7 8 POSITIVE AUXILIARY OUTPUT 220µF EXTERNAL CAPACITOR 5 NEGATIVE AUXILIARY OUTPUT FIGURE 2: TRIPLE OUTPUT EXTERNAL CAPACITOR CONNECTIONS B4-53 HR40 SERIES 4 WATT DC/DC CONVERTERS WARNING: EXTERNAL CAPACITORS REQUIRED OPERATION WITHOUT EXTERNAL CAPACITORS WILL RESULT IN DAMAGE TO THE INTERNAL CIRCUITRY. PIN OUT Pin Single Output Dual Output 1, 21 Positive Input Positive Input Triple Output Positive Input 3 No connection No connection No connection 4 Case Case Case 5 No connection No connection Negative Aux. Output 6 No connection No Connection Output Common Main2 7 No connection No connection Output Common Aux.2 8 Output Common3 Output Common Positive Aux. Output 9 Output Common3 No connection +5 VDC Output 10 No connection Positive Output No connection 11 No connection No connection No connection 12 Positive Output3 Negative Output No connection 13 Positive Output3 No connection No connection 14 No connection Ext. Capacitor No connection 15 Inhibit Inhibit Inhibit 16 No connection No connection No connection 17, 181 Input Common Input Common Input Common Dot on top of cover indicates pin one. 1 2 BOTTOM VIEW HR40 18 17 10 See Section B8. case C2, for dimensions 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 3 - 28 Base Model Number of Outputs (1 = single, 2 = dual, 3 = triple) Input Voltage Output Voltage (Auxiliary output on triple output models) B4-54 9 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 © 1994 - 1999 Interpoint. All rights reserved. 12 CASES CASE C BOTTOM VIEW CASE C1 MSA Series: Screening – Standard, ES, or 883 SMSA Series: Screening – Space Standard, H, or K Dot on top of case indicates pin one Projection Weld Seam Seal 0.932 (23.67) 1.075 max (27.31) FIGURE 8: CASE C MAXIMUM DIMENSIONS 2 3 4 5 0.932 (23.67) 6 0.732 (18.59) 0.332 (8.43) 0.000 0.000 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) FIGURE 9: CASE C1 7 0.532 (13.51) 8 0.132 (3.35) 0.000 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 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 2 9 18 17 10 0.205 ±0.010 (5.21 ±0.25) FIGURE 10: CASE C2 0.000 0.800 (20.32 0.370 max. (9.40) 0.350 (8.89) 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. 1 0.025 (0.64) dia. 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 Squared corner and dot on top of case indicate pin one. 0.132 (3.35) CASE C BOTTOM VIEW See Figures 9 - 11 for pin configurations. 0.100 (2.54) Pins equally spaced Marker bead on pin 18 0.800 (20.32) BOTTOM VIEW CASE C3 MSF EMI Filter: Screening – Standard or ES Seam Seal 0.018 ±0.002 dia. (0.46 ±0.05) Dot on top of case indicates pin one 1 2 3 4 0.800 (20.32 B8-8 0.300 (7.62) 0.100 (2.54) 0.000 0.205 ±0.010 (5.21 ±0.25) 0.370 max. (9.40) 0.350 (8.89) 0.000 7 0.800 0.600 (20.32) (15.24) FIGURE 11: CASE C3 0.205 ±0.010 (5.21 ±0.25) 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. 0.365 max. (9.27) 9 8 6 5 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: +25°C 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