MCH2815S/883

MCH2805S INTERPOINT | Alldatasheet

Document overview

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Technical content

+VIN +VOUT DUAL MODELS ONLY NEGATIVE OUTPUT OUTPUT COMMON POSITIVE OUTPUT 0.47 µF typical MCH SERIES

1.5 W ATT

FEATURES

• -55°C to +125°C operation
• 12 to 50 VDC input
• Fully isolated
• Magnetic feedback
• Fixed frequency 370 kHz typ.
• Topology – Current Mode Flyback
• 80 V for up to 120 ms transient protection (70 V for 15 V single and dual models)
• Inhibit function
• Short circuit protection
• Undervoltage lockout MODELS VDC OUTPUT

DESCRIPTION

With a miniature footprint of just 0.8 square inches, the MCH Series™ of DC/DC converters delivers 1.5 watts of output power while saving significant board real estate. The wide input voltage range of 12 to 50 VDC accepts the varying voltages of military, aero- space, or space bus power and tightly regulates output voltages to protect downstream components. Transient protection of 80 volts for up to 120 milliseconds exceeds the requirements of MIL-STD-704A for the 5, 5.2, and 12 volt single models and the 12 volt dual model. The 15 volt single and dual converters will withstand transients of up to 70 volts for up to 120 milliseconds. CONVERTER DESIGN MCH Series DC/DC converters incorporate a continuous flyback topology with a constant switching frequency of approximately 370 kHz. Current-mode pulse width modulation (PWM) provides output voltage regulation. Output error voltage is magnetically fed back to the input side of the PWM to regulate output voltage. Regulation is also affected by the load; refer to the Electrical Characteristics tables on the following pages. Dual models regulate the negative output with magnetic coupling to the positive output. Up to 80% of the total load may be on one output providing that the other output carries a minimum of 20% of the total load. The dual models can be used at double the output voltage by connecting the load between positive and negative outputs, leaving the common unconnected. (ex: MCH2805D can be used as a 10 VDC output.) INHIBIT FUNCTION When an open collector TTL logic low is applied to the inhibit terminal, pin 7, the converter shuts down and lowers the output voltage to near zero and input current to as low as 2.3 mA. Leaving the terminal open or applying an open collector TTL logic high will enable the converter. PROTECTION FEATURES Undervoltage lockout prevents the MCH Series converters from operating below approximately 8 VDC input voltage to keep system current levels smooth, especially during initialization or re-start oper- ations. All models include a soft-start function to prevent large current draw and minimize overshoot. The converters also provide short circuit protection by restricting the current. MIL-STD-461 Use Interpoint’s FMSA-461 EMI filter to pass the CE03 requirements of MIL-STD-461C. CONVENIENT PACKAGING The MCH Series converters are packaged in hermetically sealed, projection-welded metal cases which provide EMI/RFI shielding. SINGLES 5.2 DUALS ±12 ±15 DC/DC CONVERTERS

28 VOLT INPUT

FIGURE 1: BLOCK DIAGRAM Weight: 12 grams max. Screening: Standard, ES, or 883 (Class H)

RECOMMENDED OPERATING CONDITIONS ABSOLUTE MAXIMUM RATINGS INHIBIT MCH SERIES SINGLE OUTPUT MODELS MCH2805S MCH285R2S MCH2812S MCH2815S PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS OUTPUT CURRENT V IN = 12 to 50 VDC — 300 0 — 288 0 — 125 0 — 100 mA OUTPUT POWER V IN = 12 TO 50 VDC 0 — 1.5 0 — 1.5 0 — 1.5 0 — 1.5 W OUTPUT RIPPLE 10 kHz - 2 MHz — 45 150 — 45 150 — 50 200 — 35 150 mV p-pVOLTAGE Tc = –55°C TO +125°C — 65 300 — 65 300 — 70 300 — 50 250 LINE REGULATION V IN = 12 TO 50 VDC — 35 100 — 35 100 — 60 200 — 70 300 mVTc = –55°C TO +125°C — 40 120 — 40 120 — 70 250 — 80 350 LOAD REGULATION 10% TO FULL LOAD — 350 700 — 350 700 — 600 1300 — 700 1500 Tc = –55°C TO +125°C — 380 800 — 380 800 — 640 1400 — 760 1600 mV 50% TO FULL — 100 200 — 100 200 — 145 300 — 165 350 Tc = –55°C TO +125°C — 115 300 — 115 300 — 160 400 — 185 450 INPUT VOLTAGE CONTINUOUS 12 28 50 12 28 50 12 28 50 12 28 50 VDC NO LOAD TO FULL TRANSIENT 120 ms 0 — 80 0 — 80 0 — 80 0 — 70 V INPUT CURRENT NO LOAD — 5.5 10 — 5.5 10 — 6.0 10 — 6.0 11 Tc = –55°C TO +125°C — 6.0 11 — 6.0 11 — 6.5 12 — 6.5 12 FULL LOAD — 70 74 — 70 74 — 68 72 — 68 72 mATc = –55°C TO +125°C — 73 78 — 73 78 — 70 74 — 70 74 INPUT RIPPLE 10k Hz - 10 MHz — 100 200 — 100 200 — 100 200 — 100 200 mA p-pCURRENT2 Tc = –55°C TO +125°C — 130 250 — 130 250 — 150 250 — 150 250 EFFICIENCY Tc = 25°C 72 77 — 72 77 — 74 79 — 74 79 — %Tc = –55°C TO +125°C 69 75 — 69 75 — 72 77 — 72 77 — STEP LOAD 50 %–100%– 50% LOAD RESPONSE5 TRANSIENT –400 185 400 –400 185 400 –700 350 700 –700 350 700 mV pkTc = –55°C TO +125°C –500 185 500 –500 185 500 –800 380 800 –800 380 800 RECOVERY — 125 500 — 125 500 — 130 500 — 140 600 µsTc =–55°C TO +125°C — 125 600 — 125 600 — 130 600 — 180 750 STEP LINE 12 TO 50 TO 12 V INRESPONSE5 TRANSIENT –400 170 400 –400 170 400 –900 400 900 –750 400 750 mV pkTc = –55°C TO +125°C –500 180 500 –500 180 500 –1000 400 1000 –850 450 850 START-UP DELAY — 7 20 — 7 20 — 7 20 — 7 20 ms0 TO 28 VDC Tc = –55°C TO +125°C — 10 40 — 10 40 — 10 40 — 10 40 OVERSHOOT — 0 100 — 0 100 — 0 250 — 0 300 mV pkTc = –55°C TO +125°C — 0 150 — 0 150 — 0 350 — 0 450 Input Voltage

• 12 to 50 VDC Output Power
• 1.5 W Capacitive Load
• Single output models 200 µF
• Dual output models 100 µF Lead Soldering Temperature (10 sec per lead)
• 300°C Storage Temperature Range (Case)
• –65°C to +150°C Input Voltage Range
• 12 to 50 VDC continuous
• 80 V for 120 msec transient (70 V for 15 V single and dual models) Case Operating Temperature (Tc)
• –55°C to +125°C full power
• –55°C to +135°C absolute Derating Output Power/Current (Tc)
• Linearly from 100% at 125°C to 0% at 135°C Inhibit – TTL Open Collector
• Logic low (output disabled) 0.8 V max Inhibit pin current 1 mA max
• Referenced to input common
• Logic high (output enabled) open collector See notes 1, 2, 3, 4, 5, and 6 on the following page. Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. Output Voltage Temperature Coefficient
• 100 ppm/°C typical Input to Output Capacitance
• 100 to 170 pF typical Undervoltage Lockout
• 8 V input typical Current Limit
• 125% of full load typical Isolation
• 100 megohm minimum at 500 V Audio Rejection 40 dB, typical Conversion Frequency (kHz)
• 25°C, 300 min, 370 typ, 450 max
• –55°C to +125°C 270 min, 370 typ, 470 max Inhibit Pin Voltage (unit enabled)
• 7 to 12 V

Notes: 1. Specified at 50% load. 2. Lin = 2 µH. 3. Maximum duration of short circuit: 25°C-– 90 seconds, 125°C – 30 seconds. 4. Load fault is a short circuit (<50 mohms). Recovery is into resistive full load. 5. Transition ≥ 10 µs. Recovery = time to settle to within 1% of Vout final value. 6. Max. spec indicates 80% of the converter’s total power, available from either output. 7. Specification applies to both + and – Vout. 8. Although no minimum load is required, at no load the output voltage may increase up to 15%. DUAL OUTPUT MODELS MCH2805D MCH2812D MCH2815D PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS OUTPUT CURRENT6 VIN = 12 TO 50 VDC 0 ±150 240 0 ±62.5 100 0 ±50 80 mA OUTPUT POWER V IN = 12 TO 50 VDC 0 — 1.5 0 — 1.5 0 — 1.5 W OUTPUT RIPPLE 10 kHz - 2 MHz — 35 150 — 35 150 — 30 150 VOLTAGE +VOUT Tc = –55°C TO +125°C — 50 250 — 40 250 — 35 250 mV p-p –VOUT 10 kHz - 2 MHz — 35 150 — 35 150 — 30 150 Tc = –55°C TO +125°C — 50 250 — 40 250 — 35 250 LINE REGULATION7 VIN = 12 TO 50 VDC — 10 50 — 100 300 — 165 500 mVTc = –55°C TO +125°C — 20 100 — 110 400 — 180 650 LOAD REGULATION8 10% TO FULL — 300 600 — 550 1100 — 600 1300 ±VOUT –55°C TO +125°C — 350 700 — 570 1200 — 630 1400 mV 50% TO FULL — 80 200 — 115 250 — 125 300 –55°C TO +125°C — 100 300 — 130 350 — 135 400 INPUT VOLTAGE CONTINUOUS 12 28 50 12 28 50 12 28 50 VDC NO LOAD TO FULL TRANSIENT 120 ms 0 — 80 0 — 80 0 — 70 V INPUT CURRENT NO LOAD — 5.0 10 — 7.5 13 — 7.5 13 Tc = –55°C TO +125°C — 6.0 12 — 8.0 14 — 8.0 14 FULL LOAD — 69 73 — 70 73 — 71 74 mATc = –55°C TO +125°C — 72 77 — 71 77 — 72 78 INPUT RIPPLE2 10 kHz - 10 MHz — 100 200 — 115 200 — 90 200 mA p-pCURRENT Tc = –55°C TO +125°C — 130 250 — 150 250 — 120 250 EFFICIENCY Tc = 25°C 73 77 — 73 77 — 72 76 — %Tc = –55°C TO +125°C 70 75 — 70 75 — 69 74 — STEP LOAD 50 %–100%– 50% LOAD RESPONSE 5 ±V OUT TRANSIENT –300 130 300 –600 250 600 –600 250 600 mV pkTc = –55°C TO +125°C –400 140 400 –700 260 700 –700 270 700 RECOVERY — 100 400 — 165 700 — 50 200 µs–55°C TO +125°C — 100 500 — 165 800 — 50 300 STEP LINE 12 TO 50 TO 12 V IN RESPONSE5 ±V OUT TRANSIENT –250 125 250 –500 240 500 –500 220 500 mV pkTc = –55°C TO +125°C –300 130 300 –600 250 600 –600 230 600 START–UP DELAY — 8 25 — 8 25 — 8 25 ms0 TO 28 VDC, ± VOUT Tc = –55°C TO +125°C — 10 45 — 10 45 — 10 45 OVERSHOOT — 0 100 — 0 250 — 0 750 mV pkTc = –55°C TO +125°C — 0 150 — 0 350 — 0 900 Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.

(S = single, D = dual) (R = decimal point, 3R3 = 3.3 Vout) (Standard screening has no designator in this position.) PIN OUT SMD NUMBERS MCH SERIES Pin Single Output Dual Output

1 Positive Input Positive Input

2 Input Common Input Common

3 Positive Output Positive Output

4 Output Common Output Common

5 Case Ground Case Ground

6 No connection Negative Output

7 Inhibit Inhibit

FIGURE 2: PIN OUT STANDARD MICROCIRCUIT DRAWING (SMD) 5962-9569601HXC IN PROCESS 5962-9569701HXC 5962-9569801HXC 5962-9570201HXC 5962-9570301HXC 5962-9570401HXC MCH S ERIES SIMILAR PART MCH2805S/883 MCH285R2S/883 MCH2812S/883 MCH2815S/883 MCH2805D/883 MCH2812D/883 MCH2815D/883 Squared corner and dot on top of cover indicate pin one. For exact specifications for an SMD product, refer to the SMD drawing. Call your Interpoint representative for status on the MCH Series SMD releases which are “in process”. SMDs can be down- loaded from http://www.dscccols.com/programs/smcr See page 7 for dimensions.

200 mV / div. 500µs / div. MCH2815D +VOUT FULL LOAD TO HALF LOAD +VOUT HALF LOAD TO FULL LOAD –VOUT FULL LOAD TO HALF LOAD –VOUT HALF LOAD TO FULL LOAD VIN LINE TRANSIENT RESPONSE 200 mV / div. 200µs / div. 20 V / div. +VOUT MCH2815D –VOUT

12 VDC

50 VDC

2V/div. VIN 20V/div. VOUT TURN-ON INTO FULL LOAD 02 4 6 81 0 12 14 16 18 TIME (ms) MCH2805S Representative of all 5 volt models FIGURE 9F IGURE 10 F IGURE 11 TYPICAL PERFORMANCE CURVES: Tc = 25°C, full load, Vin = 28 VDC, unless otherwise specified. FIGURE 3 FIGURE 4 FIGURE 5 FIGURE 6 FIGURE 7 FIGURE 8 EFFICIENCY vs LOAD 1.75 EFFICIENCY OUTPUT POWER 12 & 15 VOLT SINGLE MODELS

12 VOLT

28 VOLT

50 VOLT

1.75 EFFICIENCY OUTPUT POWER 12 & 15 VOLT DUAL MODELS

28 VOLT 50 VOLT

1.75 90EFFICIENCY OUTPUT POWER ALL 5 VOLT MODELS ATTENUATION (dB) AUDIO REJECTION 10 60 FREQUENCY (kHz) MCH2815S - Representative of all models VIN LINE TRANSIENT RESPONSE 100 mV / div. 200µs / div. 20 V / div. VOUT MCH2805S 100 mV / div. 500µs / div. MCH2805S FULL LOAD TO HALF LOAD HALF LOAD TO FULL LOAD

FIGURE 15 F IGURE 16 F IGURE 17 /div. VIN 20V/d iv. –VOUT TURN-ON INTO FULL LOAD 05 1 0 15 20 25 30 35 40 45 TIME (ms) MCH2815D Also representative of MCH2812S & D and MCH2815S +VOUT

0 V for –VOUT

0 V for +VOUT

50% LOAD +V; 50% TO 10% LOAD –V AND 50% LOAD –V; 50% TO 10% LOAD +V ±VOUT VOLTAGE CHANGE (%) 10 20 30 40 50 OUTPUT LOAD (%) DUAL ISOLATED ±5 V ±12 V ±15 V –5 V –12 V –15 V ±VOUT VOLTAGE CHANGE (%) 90/10 70/30 50/50 30/70 10/90 OUTPUT LOAD (%) DUAL ISOLATED CROSS REGULATION 90% TO 10% LOAD ON +V 10% TO 90% LOAD ON –V +5 V +12 V +15 V MAXIMUM POWER (W) 0.8 1.8 1.0 1.2 1.4 1.6 91 0 11 12 INPUT VOLTAGE ALL MODELS LOW LINE DROPOUT 12 V SINGLE & DUAL 15 V SINGLE & DUAL 5 V DUAL 5 V SINGLE 120 100

0 Vout NOMINAL %

% OF FULL LOAD OUTPUT VOLTAGE vs. OUTPUT LOAD 0 20 40 60 80 100 120 140 160 SAFE OPERATING AREA TRIP POINT 125% FREQUENCY (MHz) EMISSION LEVEL (dB µA) 0.1 1 10 50 .015 MCH FILTERED WITH FMSA CE03 LIMIT NARROWBAND FIGURE 12 FIGURE 13 FIGURE 14 TYPICAL PERFORMANCE CURVES: Tc = 25°C, full load, Vin = 28 VDC, unless otherwise specified.

1.5 W ATTDC/DC CONVERTERS

for pin configurations. Dot on top of case indicates pin one. 0.980 max (24.89) 0.805 max (20.45) Materials Header Kovar/Nickel/Gold (Case A3, Kovar/Nickel) Cover Kovar/Nickel Pins 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 300 °C for 10 seconds per pin. 0.000 0.097 (2.46) 0.697 (17.70 0.000 0.135 (3.43) 0.835 (21.21) 0.270 max (6.98) 0.000 0.235 (5.97) 0.435 (11.05) 0.535 (13.59) MCH Series: Screening – Standard, ES, or 883 BOTTOM VIEW CASE A2 0.270 max (6.86) 0.000 0.27 ±0.02 (6.9 ±0.5) 0.27 ±0.02 (6.9 ±0.5) Projection WeldSeam Seal Squared corner and dot on top of case indicate pin one. 0.018 ± 0.002 dia. (0.46 ± 0.05) FIGURE 18: CASE A MAXIMUM DIMENSIONS FIGURE 19: CASE A Note: Although every effort has been made to render the case drawings at actual size, variations in the printing process may ca use some distortion. Please refer to the numerical dimensions for accuracy.

1.5 W ATT DC/DC CONVERTERS

TEST 125 °C 125 °C STANDARD /ES /883 (Class H)* PRE-CAP INSPECTION Method 2017, 2032 yes yes yes TEMPERATURE CYCLE (10 times) Method 1010, Cond. C, -65°C to 150°C no no yes Method 1010, Cond. B, -55°C to 125°C no yes no CONSTANT ACCELERATION Method 2001, 3000 g no no yes Method 2001, 500 g no yes no BURN-IN Method 1015, 160 hours at 125°C no no yes 96 hours at 125°C case (typical) no yes no FINAL ELECTRICAL TEST MIL-PRF-38534, Group A Subgroups 1 through 6: -55°C, +25°C, +125°C no no yes Subgroups 1 and 4: +25°C case yes yes no HERMETICITY TESTING Fine Leak, Method 1014, Cond. A no yes yes Gross Leak, Method 1014, Cond. C no yes yes Gross Leak, Dip (1 x 10-3) yes no no FINAL VISUAL INSPECTION Method 2009 yes yes yes Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534. *883 products are built with element evaluated components and are 100% tested and guaranteed over ENVIRONMENTAL SCREENING 22422-001-DTS Rev C This revision supercedes all previous releases. 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. MGA Series is a trademark of Interpoint. Copyright © 1997 - 2000 Interpoint. All rights reserved. Contact Information: Interpoint Headquarters USA Phone: 1-800-822-8782 +425-882-3100 Email: power@intp.com www.interpoint.com Interpoint UK Phone: +44-1252-872266 Email: poweruk@intp.com Interpoint France Phone: +33-134285455 Email: powerfr@intp.com