Crane Aerospace & Electronics Power Solutions MSA/MGA Single and Dual DC-DC Converters 28 Volt input – 5 Watt Features Small size, 1.16 in2 (7.46 cm2) - MSA Surface mount package - MGA • –55° to +125°C operation • 16 to 40 VDC input models • 50 V for 50 ms transient protection VDC Output • Fully isolated • Fixed high frequency switching SINGLE • Indefinite short circuit protection 5 ±5 5.2 (MSA only) ±12 12 ±15 • Inhibit function • Up to 76% efficiency DUAL 15 Description The Interpoint™ MSA Series™ and MGA Series™ of dc-dc converters provide up to 5 watts of output power over the full military temperature range with up to 76% efficiency. Thick-film hybrid techniques provide military/aerospace reliability levels and optimum miniaturization. The converters are offered with standard screening, “ES” screening, or fully compliant to “883” MIL-PRF-38534 Class H screening. Standard microcircuit drawings (SMD) are available. See “Table 12: Element Evaluation” on page 14 and “Table 13: Environmental Screening” on page 15 for screening options and descriptions. Converter Design The converters are switching regulators that use a flyback converter design with a constant switching frequency of 550 kHz typical. They are regulated, isolated units using a pulse width modulated topology and are built as high reliability thick-film hybrids. Isolation between input and output circuits is provided with a transformer in the forward power path and an optical link in the feedback control loop. Excellent input line transient response and audio rejection is achieved by an advanced feedforward compensation technique. Negative output regulation is maintained by tightly coupled magnetics. Up to 4 watts, 80% of the total output power, is available from either output, provided that the opposite output is simultaneously carrying 20% of the total power in order to maintain the specified regulation on the negative output. A predictable current limit is accomplished by Crane Aerospace & Electronics Power Solutions – Interpoint Products 10301 Willows Rd. NE, Redmond, WA 98052 +1.425.882.3100 • [email protected] www.craneae.com/interpoint direct monitoring of the output load current, which results in a constant current output. Internal input and output filters eliminate the need for external capacitors for stable operation. Output filter examples in “Figure 3: Low Noise Output Filter MSA and MGA Single Output Models” on page 3 and “Figure 4: Low Noise Output Filter MSA and MGA Dual Output Models” on page 3 provide suggested solutions for systems where very low output ripple is required. Wide Voltage Range The MSA converters are designed to provide full power operation over a full 16 to 40 VDC voltage range. Operation below 16 volts, including MIL-STD-704E emergency power conditions is possible with derated power. Low-line drop out graphs, “Figure 17” on page 10 and “Figure 23” on page 11, graphs provide more information. Improved Dynamic Response The feed-forward compensation system provides excellent dynamic response and noise rejection. Audio rejection is typically 50 dB. The minimum to maximum step line transient response is typically less than 1%. Page 1 of 15 MSA_MGA Rev AC - 2013.06.13 Crane Aerospace & Electronics Power Solutions MSA/MGA Single and Dual DC-DC Converters 28 Volt input – 5 Watt Inhibit Function Packaging The converter is inhibited when the inhibit pin is pulled below 0.8 V and enabled when its inhibit pin is left floating. An external inhibit interface should be capable of pulling the converter’s inhibit pin below 0.8 V while sinking the maximum inhibit current and also allowing the inhibit pin to float high to enable the converter. A voltage should not be applied to the inhibit pin. The open circuit output voltage associated with the inhibit pin is 9 to 11 V. In the inhibit mode, a maximum of 4 mA must be sunk from the inhibit pin. See “Figure 2: Inhibit Interface MSA and MGA” on page 3. MGA - Surface mount package The surface mount MGA dc-dc converters can be mounted with pick-and-place equipment or manually. See “Figure 28: MGA Gull-Wing Solder Pad Layout” on page 13 for more information. The inhibit feature can be used to disable internal switching and inhibit the unit’s output. Inhibiting in this manner results in low standby current and no generation of switching noise. Undervoltage Lockout and Transient Protection Undervoltage lockout helps keep system current levels low during initialization or re-start operations. They can withstand short term transients of up to 50 volts without damage. A low voltage lockout feature keeps the converter shutdown below approximately 13 VDC to ensure smooth initialization. MSA - Down-leaded package The MSA Series converters are packaged in hermetically sealed, projection-welded metal cases which provide EMI/RFI shielding. The small size, 1.075 x 1.075 x 0.270 inches (27.31 x 27.31 x 6.86 mm), saves space and weight in critical applications. See “Figure 26: MSA Case Dimensions” on page 12. Internal components are soldered with SN96 (melting temperature 221°C) to prevent damage during reflow. Maximum reflow temperature for surface mounting the MGA converter is 220°C for a maximum of 30 seconds. SN60, 62, or 63 are the recommended types of solder. Hand soldering should not exceed 300°C for 10 seconds per pin. The hermetically sealed metal cases are available in two different lead configurations. See “Figure 27: MGA Case Dimensions” on page 13 and “Figure 28: MGA Gull-Wing Solder Pad Layout” on page 13. MIL-STD-461 Use our FMSA-461 (down-leaded) or our FMGA-461 (surface mount) EMI filter to pass the CE03 requirements of MIL-STD-461C. Positive Input Inhibit + Error Amp VR PWM Control + Input Common Case Ground Isolated Feedback Page 2 of 15 MSA_MGA Rev AC - 2013.06.13 Output Common Negative Output = Dual Output Figure 1: Block Diagram MSA and MGA www.craneae.com/interpoint Positive Output Crane Aerospace & Electronics Power Solutions MSA/MGA Single and Dual DC-DC Converters 28 Volt input – 5 Watt Positive Input 12 k 5k 400 Inhibit 50 k 200 pF 10 K 3.9 K 10V 2N3904 Vcc 10 k Input Common Figure 2: Inhibit Interface MSA and MGA EMI Filter From input power source Positive Input Input Common T1 Positive Output Positive Positive Input Output Case Output Common Input Output Common Common + C2 C3 To Load Case T1 C1 Figure 3: Low Noise Output Filter MSA and MGA Single Output Models The filter suggestions in Figure 3 and Figure 4 will further reduce the output ripple for systems requiring very low output noise. C1 = 0.27 µF ceramic capacitor, 500 V C2 = C4 = 6.8 µF tantalum capacitor C3 = C5 = 0.27 µF ceramic capacitor Single output: T1 = 15T #28 AWG winding on toroid, 5 m = 5000 EMI Filter From input power source Positive Input Positive Output Input Output Common Common Positive Positive Input Output Case Output Common Input Common Dual output: T2 = 10T #28 AWG winding on toroid, 5 m = 5000 T2 C2+ C4+ Negative Output Case C1 C3 C5 To Loads T2 Figure 4: Low Noise Output Filter MSA and MGA Dual Output Models www.craneae.com/interpoint Page 3 of 15 MSA_MGA Rev AC - 2013.06.13 Crane Aerospace & Electronics Power Solutions MSA/MGA Single and Dual DC-DC Converters 28 Volt input – 5 Watt Pin Pin Out MSA Models Single Output Dual Output Pin 1 Positive Output Positive Output 2 Output Common Output Common Pin Out MGA Models Single Output Dual Output 1 Inhibit Inhibit 2, 3 Positive Input Positive Input 3 No Connection Negative Output 4 No Connection No Connection 4 No Connection No Connection 5, 6 Input Common Input Common 5 Inhibit Inhibit 7, 8 Case Ground Case Ground 6 Positive Input Positive Input 9, 10 No Connection No Connection 7 Input Common Input Common 11, 12 Positive Output Positive Output 8 Case Ground Case Ground 13 Positive Output Output Common 14 Output Common Output Common 15, 16 Output Common Negative Output 17, 18 No Connection No Connection 19, 20 Case Ground Case Ground Table 1: MSA Pin Out To meet specified performance for the MGA, all pins must be connected except “No Connection” pins and Inhibit pin. Table 3: MGA Pin Out 1 2 3 4 5 BOTTOM VIEW MSA 8 7 6 TOP VIEW MGA 20 19 18 17 16 15 14 13 12 11 Triangle in upper left corner of cover indicates pin one. See “Figure 26: MSA Case Dimensions” on page 12. Inhibit ∇ 1 2 3 4 5 6 7 8 9 10 Squared corner and dot on top of package indicate pin one. See “Figure 27: MGA Case Dimensions” on page 13. Figure 5: MSA Pin Out Bottom View Figure 6: MGA Pin Out Top View MSA Pins not in Use MGA Pins not in Use Leave unconnected “No Connection” pin Leave unconnected Inhibit “No Connection” pins Table 2: MSA Pins not in Use www.craneae.com/interpoint Leave unconnected Page 4 of 15 MSA_MGA Rev AC - 2013.06.13 Connect to case ground for best EMI performance. Table 4: MGA Pins not in Use Crane Aerospace & Electronics Power Solutions MSA/MGA Single and Dual DC-DC Converters 28 Volt input – 5 Watt SMD Numbers SMD Numbers MSA Similar Part Standard Microcircuit Drawing (SMD) MGA Similar Part Standard Microcircuit Drawing (SMD) 5962-9309201hxc MSA2805S/883 5962-9309201hZc MGA2805SZ/883 5962-0251301hxc MSA285R2S/883 5962-9309301HZC MGA2812SZ/883 5962-9309301HXC MSA2812S/883 5962-9309401HZC MGA2815SZ/883 5962-9309401HXC MSA2815S/883 5962-0052201HZC MGA2805DZ/883 5962-0052201HXC MSA2805d/883 5962-9308901hZc MGA2812DZ/883 5962-9308901hxc MSA2812D/883 5962-9309001hZc MGA2815DZ/883 5962-9309001hxc MSA2815D/883 For exact specifications for an SMD product, refer to the SMD drawing. SMD numbers are shown for the surface mount gull-wing case. For the straightlead case, replace the Z (HZC) in the SMD with a Y (HYC). SMDs can be downloaded from: http://www. landandmaritime.dla.mil/programs/smcr For exact specifications for an SMD product, refer to the SMD drawing. SMDs can be downloaded from: http://www.landandmaritime.dla.mil/programs/smcr Table 5: MSA SMD Numbers Table 6: MGA SMD Numbers model numbering key model numbering key MSA Base Model 28 12 Base Model Input Voltage D / 883 28 12 S Z / 883 Output Voltage Number of Outputs (S = single, D = dual) Input Voltage Output Voltage (R = decimal point, 5R2 = 5.2 Vout) Gull Wing Lead Option (Straight leaded case has no designator in this position.) Number of Outputs (S = single, D = dual) Screening (Standard screening has no designator in this position.) Screening (Standard screening has no designator in this position.) Figure 7: MSA Model Numbering Key To MGA Figure 8: MGA Model Numbering Key model Number Options determine the model number enter one option from each category in the form below. Category Base Model and Input Voltage Output Voltage 1 Options MSA 05, 5R2, 12, 15 MGA 05, 12, 15 Fill in for Model # __________ M A __________ Case Options 3 Screening 4 S MSA – down-leaded: leave blank (standard, leave blank) D MGA – straight leads: leave blank ES MGA – gull wings: Z 883 Number of Outputs 2 / Notes: 1. 5R2 is a 5.2 output model. 2. Number of Outputs: S is a single output and D is a dual output 3. Case Options: For the MSA down-leaded case leave the case option blank. For the MGA straight-lead case, leave the case option blank. For the MGA, surface mount gull-wing case, insert the letter “Z” in the case option position. 4. Screening: For standard screening leave the screening option blank. For other screening options, insert the desired screening level. For more information see “Table 11: Element Evaluation” on page 12 and “Table 12: Environmental Screening” on page 13. Table 7: MSA and MGA Model Number Options www.craneae.com/interpoint Page 5 of 15 MSA_MGA Rev AC - 2013.06.13 Crane Aerospace & Electronics Power Solutions MSA/MGA Single and Dual DC-DC Converters 28 Volt input – 5 Watt Table 8: Operating Conditions, All Models : 25°C TC, 28 VDC VIN, 100% load, unless otherwise specified. All Models PARAMETER CONDITIONS LEAD SOLDERING TEMPERATURE 10 seconds max. Per Lead MGA, Surface Mount Solder Reflow 2 MIN TYP MAX UNITS — — 300 °C SN 60, 62 or 63 Recommended STORAGE TEMPERATURE 1 220°C for max. of 30 seconds -65 — +150 °C CASE OPERATING FULL POWER -55 — +125 TEMPERATURE ABSOLUTE 1 -55 — +135 DERATING OUTPUT POWER/CURRENT 1 LINEARLY From 100% at 125°C to 0% at 135°C ISOLATION, input to output, Any pin to case except case Pin @ 500 VDC at 25°C 100 — °C — Megohms Input to Output Capacitance 1 — 50 — pF UnderVoltage Lockout 1 — 13 — V — 115% — % CURRENT LIMIT 1, 3 AUDIO REJECTION % OF FULL LOAD 1 — 50 — dB 400 — 600 kHz inhibit pin pulled low — — 0.8 VDC INHIBIT PIN SOURCE CURRENT 1 — — 4 mA CONVERSION FREQUENCY FREE RUN -55° TO +125°C INHIBIT ACTIVE LOW (OUTPUT DISABLED) Do not apply a voltage to the inhibit pin. 4 REFERENCED TO INHIBIT ACTIVE HIGH (OUTPUT ENABLED) Do not apply a voltage to the inhibit pin. 4 INPUT COMMON INHIBIT PIN CONDITION OPEN PIN VOLTAGE 1 9 OPEN COLLECTOR OR UNCONNECTED — 11 V Notes: 1. Guaranteed by qualification test and/or analysis. Not an in-line test. 2. See “Figure 28: MGA Gull-Wing Solder Pad Layout” on page 13 for more information 3. Dual outputs: The over-current limit will trigger when the sum of the currents from both outputs reaches 115% (typical value) of the maximum rated “total” current of both outputs. 4. An external inhibit interface should be used to pull the inhibit low or leave it floating. The inhibit pin can be left unconnected if not used. www.craneae.com/interpoint Page 6 of 15 MSA_MGA Rev AC - 2013.06.13 Crane Aerospace & Electronics Power Solutions MSA/MGA Single and Dual DC-DC Converters 28 Volt input – 5 Watt Table 9: Electrical Characteristics: -55°C to +125°C TC, 28 VDC Vin, 100% load, free run, unless otherwise specified. MSA2805S MGA2805S MSA/MGA single output models PARAMETER CONDITIONS OUTPUT VOLTAGE OUTPUT CURRENT OUTPUT POWER 10 kHz - 2 MHz TYP (no MGA285R2S) MAX MIN TYP MAX UNITS 4.80 5.00 5.20 4.99 5.20 5.40 VDC 0 — 1000 0 — 962 mA 0 — 5 0 — 5 W TC = 25°C — 125 350 — 110 335 — — 525 — — 525 VIN = 16 to 40 VDC — 10 50 — 10 50 TC = -55°C TO +125°C LINE REGULATION MIN Vin = 16 to 40 VDC Vin = 16 to 40 VDC OUTPUT RIPPLE MSA285R2S mV p-p mV LOAD REGULATION No LOAD TO FULL — 10 50 — 10 50 mV INPUT VOLTAGE CONTINUOUS 16 28 40 16 28 40 VDC NO LOAD TO FULL TRANSIENT 50 ms 1 — — 50 — — 50 V INPUT CURRENT NO LOAD — 27 40 — 28 40 INHIBITED — 3 5 — 3 4 mA INPUT RIPPLE CURRENT 2 10 kHz - 10 MHz — 30 200 — 30 150 EFFICIENCY TC = 25°C 66 71 — 66 71 — 64 — — 64 — — — — 2.0 — — 2.2 — — 75 — — 75 ms — — ±750 — — ±750 mV pk TC = -55°C TO +125°C LOAD FAULT 3, 4 POWER DISSIPATION SHORT CIRCUIT RECOVERY STEP LOAD RESPONSE 4, 5 TRANSIENT 1 mA p-p % W 50% - 100% - 50% RECOVERY — — 1500 — — 1500 µs STEP LINE RESPONSE 1, 4, 5 TRANSIENT — — ±500 — — ±500 mV pk 16 - 40 - 16 VDC RECOVERY — — 900 — — 900 µs START-UP DELAY — — 75 — — 75 1 ms OVERSHOOT 1 — — 200 — — 500 mV pk NO EFFECT ON DC PERFORMANCE — — 300 — — 300 µF 0 - 28 VIN, Full lOad CAPACITIVE LOAD TC = 25°C 1 Notes 1. Guaranteed by qualification test and/or analysis. Not an in-line test. 2. An external 2 µH inductor, added in series to the input, is necessary to maintain specifications. 3. Indefinite short circuit protection not guaranteed above 125°C (case). www.craneae.com/interpoint 4. Recovery time is measured from application of the transient to point at which Vout is within 1% of Vout at final value. 5. Transition time >10 µs. Page 7 of 15 MSA_MGA Rev AC - 2013.06.13 Crane Aerospace & Electronics Power Solutions MSA/MGA Single and Dual DC-DC Converters 28 Volt input – 5 Watt Table 10: Electrical Characteristics: -55°C to +125°C TC, 28 VDC Vin, 100% load, free run, unless otherwise specified. MSA/MGA single output models PARAMETER OUTPUT CURRENT TYP MAX MIN TYP MAX UNITS 11.52 12.00 12.48 14.40 15.00 15.60 VDC 0 — 417 0 — 333 mA 0 — 5 0 — 5 W Vin = 16 to 40 VDC OUTPUT POWER Vin = 16 to 40 VDC OUTPUT RIPPLE MSA2815S MGA2815S MIN CONDITIONS OUTPUT VOLTAGE MSA2812S MGA2812S TC = 25°C — 50 200 — 50 170 TC = -55°C TO +125°C — — 300 — — 250 VIN = 16 to 40 VDC — 10 50 — 10 50 mV LOAD REGULATION No LOAD TO FULL — 10 50 — 10 50 mV INPUT VOLTAGE CONTINUOUS 16 28 40 16 28 40 VDC V 10 kHz - 2 MHz LINE REGULATION 1 NO LOAD TO FULL TRANSIENT 50 ms — — 50 — — 50 INPUT CURRENT NO LOAD — 29 42 — 31 44 INHIBITED — 3 5 — 3 5 10 kHz - 10 MHz — 30 150 — 30 150 TC = 25°C INPUT RIPPLE CURRENT 2 EFFICIENCY mV p-p mA mA p-p 70 76 — 71 76 — TC = -55°C TO +125°C 68 — — 69 — — POWER DISSIPATION — — 2.1 — — 2.0 W SHORT CIRCUIT RECOVERY 1 — — 30 — — 30 ms STEP LOAD RESPONSE 4, 5 TRANSIENT — — ±1100 — — ±1500 mV pk 50% - 100% - 50% RECOVERY — — 3000 — — 3500 µs LOAD FAULT 3, 4 STEP LINE RESPONSE 1, 4, 5 % TRANSIENT — — ±800 — — ±500 mV pk 16 - 40 - 16 VDC RECOVERY — — 1300 — — 1300 µs START-UP DELAY OVERSHOOT 1 — — 30 — — 30 ms — — 500 — — 500 mV pk — — 500 — — 500 µF 0 - 28 VIN, Full lOad CAPACITIVE LOAD 1 TC = 25°C NO EFFECT ON DC PERFORMANCE Notes 1. Guaranteed by qualification test and/or analysis. Not an in-line test. 2. An external 2 µH inductor, added in series to the input, is necessary to maintain specifications. 3. Indefinite short circuit protection not guaranteed above 125°C (case). www.craneae.com/interpoint 4. Recovery time is measured from application of the transient to point at which Vout is within 1% of Vout at final value. 5. Transition time >10 µs. Page 8 of 15 MSA_MGA Rev AC - 2013.06.13 Crane Aerospace & Electronics Power Solutions MSA/MGA Single and Dual DC-DC Converters 28 Volt input – 5 Watt Table 11: Electrical Characteristics: -55°C to +125°C TC, 28 VDC Vin, 100% load, free run, unless otherwise specified. MSA/MGA Dual output models MSA2805D MSA2812D MSA2815D MGA2805D MGA2812D MGA2815D PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX OUTPUT VOLTAGE +VOUT 4.80 5.00 5.20 11.52 12.00 12.48 14.40 15.00 15.60 4.75 5.00 5.25 11.09 12.00 12.96 14.70 15.00 16.20 -VOUT UNITS VDC OUTPUT CURRENT 2 EITHER OUTPUT — ±500 800 — ±208 333 — ±167 267 Vin = 16 to 40 VDC TOTAL OUTPUT — — 1000 — — 416 — — 334 OUTPUT POWER 2 EITHER OUTPUT — ±2.50 4 — ±2.50 4 — ±2.50 4 Vin = 16 to 40 VDC TOTAL OUTPUT — — 5 — — 5 — — 5 — — 150 — 40 140 — 60 150 10 kHz - 2 MHz ± VOUT TC = 25°C TC = -55°C TO +125°C — — 300 — — 250 — — 250 +VOUT — 10 25 — 10 50 — 10 50 VIN = 16 to 40 V -VOUT — 40 75 — 40 180 — 40 180 LOAD REGULATION +VOUT — 10 50 — 10 50 — 10 50 No LOAD TO FULL -VOUT — 50 200 — 50 200 — 50 200 Cross REgulation 1, 3 Figure 24 (10-90%) — 10 20 — 8 15 — 7 15 Effect on -VOUT Figure 25 (50-10%) — 5 8 — 3.7 6 — 3 6 INPUT VOLTAGE NO LOAD TO FULL CONTINUOUS 16 28 40 16 28 40 16 28 40 VDC — — 50 — — 50 — — 50 V INPUT CURRENT NO LOAD — 30 35 — 33 58 — 38 60 INHIBITED — 3 5 — 3 5 — 3 5 OUTPUT RIPPLE LINE REGULATION TRANSIENT 50 ms 1 INPUT RIPPLE CURRENT 4 10 kHz - 10 MHz — 30 160 — 30 150 — 30 150 EFFICIENCY TC = 25°C 68 72 — 69 75 — 70 75 — 65 — — 67 — — 68 — — — — 2.0 — — 1.9 — — 1.8 TC = -55°C TO +125°C LOAD FAULT 5, 6 POWER DISSIPATION 1 mA W mV p-p mV mV % mA mA p-p % W SHORT CIRCUIT RECOVERY — — 50 — — 30 — — 50 ms STEP LOAD RESPONSE 6, 7 TRANSIENT — — ±500 — — ±1400 — — ±1400 mV pk 50% - 100% - 50% RECOVERY — — 1000 — — 4500 — — 4500 µs STEP LINE RESPONSE 1, 6, 7 TRANSIENT — — ±750 — — ±500 — — ±1500 mV pk 16 - 40 - 16 VDC RECOVERY — — 1.2 — — 2.0 — — 1.2 ms START-UP DELAY — — 25 — — 30 — — 25 ms 0 to 28 VIN, full Load OVERSHOOT 1 — — 750 — — 500 — — 500 mV pk NO EFFECT ON DC PERFORMANCE — — 10 — — 100 — — 10 µF CAPACITIVE LOAD TC = 25°C 1 Notes 1. Guaranteed by qualification test and/or analysis. Not an in-line test. 2. Up to 4 watts (80% of full power) is available from either output providing the opposite output is carrying 20% of total power. 3. Shows regulation effect on the minus output during defined cross loading conditions. See “Figure 24” and “Figure 25” on page 11. www.craneae.com/interpoint 4. An external 2 µH inductor, added in series to the input, is necessary to maintain specifications. 5. Indefinite short circuit protection not guaranteed above 125°C (case). 6. Recovery time is measured from application of the transient to point at which Vout is within 1% of Vout at final value. 7. Transition time >10 µs. Page 9 of 15 MSA_MGA Rev AC - 2013.06.13 Crane Aerospace & Electronics Power Solutions MSA/MGA Single and Dual DC-DC Converters 28 Volt input – 5 Watt Typical Performance Plots: 25°C TC, 28 Vin, 100% load, free run, unless otherwise specified. These are examples for reference only and are not guaranteed specifications. 80 80 80 16V 16V 28V 40V 50 40 28V 60 40V 50 40 30 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 6 OUTPUT POWER (Watts) MSA/MGA2815S EFFICIENCY Figure 11 100% to 50% 50mV/div. VIN 60 40V 28V 30 6 Figure 10 20V/div. 16V 70 40V MSA/MGA2812S EFFICIENCY Figure 9 28V 50 OUTPUT POWER (Watts) MSA/MGA2805S EFFICIENCY 80 60 40 30 6 OUTPUT POWER (Watts) 50 20mV/div. EFFICIENCY (%) 70 EFFICIENCY (%) 60 70 EFFICIENCY (%) EFFICIENCY (%) 70 16V 40 30 1 2 3 4 5 6 VOUT 50% to 100% 100 µs/div 16 V TO 40 V MSA/MGA2805S STEP LINE RESPONSE OUTPUT POWER (Watts) MSA/MGA2815D EFFICIENCY Figure 12 100 µs/div 50% 100% MSA/MGA2805S STEP LOAD RESPONSE Figure 13 Figure 14 INPUT VOLTAGE (Volts) VIN 10% to 100% 100 µs/div 10% 100% MSA/MGA2805S STEP LOAD RESPONSE Figure 15 www.craneae.com/interpoint 1V/div. 50mV/div. 100% to 10% 20V/div. 17 VOUT 1 ms/div MSA/MGA2805S TURN-ON INTO NO LOAD 2805S 16 15 2812S 14 13 12 2815S 1 2 3 4 5 6 OUTPUT POWER (Watts) 50 mV DROP Figure 16 Page 10 of 15 MSA_MGA Rev AC - 2013.06.13 LOW LINE DROPOUT VS. LOAD Figure 17 Crane Aerospace & Electronics Power Solutions MSA/MGA Single and Dual DC-DC Converters 28 Volt input – 5 Watt 20V/div. Typical Performance Plots: 28 Vin, 25°C TC, 100% load, free run, unless otherwise specified. These are examples for reference only and are not guaranteed specifications. 20 30 50% to 10% 100mV/div. 50 60 70 80 90 100 0.1 1 10 +VOUT –VOUT 10% to 50% 100 FREQUENCY (kHz) MSA SERIES AUDIO REJECTION Figure 18 –POUT=2.5W VIN 40 100mV/div. ATTENUATION (dB) 10 100 µs/div 10% 50%) 200 µs/div 16 V TO 40 V MSA/MGA2815D INPUT STEP LINE RESPONSE MSA/MGA2815D +VO STEP LOAD RESPONSE Figure 19 Figure 20 INPUT VOLTAGE (Volts) 200mV/div. 90% to 10% 20V/div. 17 –POUT=0.5W VIN 5V/div. +VOUT –VOUT 10% to 90% 200 µs/div 10% 90% 500 µs/div MSA/MGA2815D +VO STEP LOAD RESPONSE MSA/MGA2815D TURN-ON INTO NO LOAD Figure 21 –VOUT VOLTAGE CHANGE (%) –VOUT VOLTAGE CHANGE (%) 6 4 2812D 2 0 2815D –2 2812D 2 COND A 1 0 2815D –1 COND B –2 –4 –3 –6 2812D –4 –8 –10 4 3 90/10 70/30 50/50 30/70 10/90 OUTPUT LOAD (+VOUT % / –VOUT %) 90–10% LOAD on +V, 10-90% LOAD on –V MSA/MGA DUAL CROSS REGULATION Figure 24 www.craneae.com/interpoint –5 10 20 30 14 13 12 2812D 1 2 3 4 5 OUTPUT POWER (Watts) 50 mV DROP Figure 23 5 8 15 6 MSA/MGA LOW LINE DROPOUT VS. LOAD Figure 22 10 2815D 16 40 50 OUTPUT LOAD (%) COND. A: 50% LOAD +V; 10% to 50% –V COND. B: 50% LOAD –V; 10% to 50% +V MSA/MGA DUAL CROSS REGULATION Figure 25 Page 11 of 15 MSA_MGA Rev AC - 2013.06.13 Crane Aerospace & Electronics Power Solutions MSA/MGA Single and Dual DC-DC Converters 28 Volt input – 5 Watt BOTTOM VIEW CASE C1 Projection Weld Squared corner and dot on top of case indicate pin one. 1.075 max. (27.31) 0.932 (23.67) 1 2 3 4 5 0.025 (0.64) dia. 8 0.132 (3.35) 7 6 0.932 (23.67) 1.075 max. (27.31) 0.732 (18.59) 0.332 (8.43) 0.532 (13.51) 0.000 0.132 (3.35) 0.000 0.205 ±0.010 (5.21 ±0.25) 0.270 max. (6.86) 0.000 Weight: 15 grams maximum 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. Materials Header Cold Rolled Steel/Nickel/Gold Cover Cold Rolled Steel/Nickel Pins #52 alloy, gold, compression glass seal Gold plating of 50 - 150 microinches included in pin diameter Seal hole: 0.070 ±0.003 (1.78 ±0.08) Case C1 MSA, Rev B, 2013.04.15 Please refer to the numerical dimensions for accuracy. Figure 26: MSA Case Dimensions www.craneae.com/interpoint Page 12 of 15 MSA_MGA Rev AC - 2013.06.13 Crane Aerospace & Electronics Power Solutions MSA/MGA Single and Dual DC-DC Converters 28 Volt input – 5 Watt TOP VIEW CASE D1 ∇ 1 2 3 4 5 6 7 8 9 10 1.000 (25.40) 0.900 (22.86) 0.800 (20.32) 0.700 (17.78) 0.600 (15.24) 0.500 (12.70) 0.400 (10.16) 0.300 ( 7.62) 0.200 ( 5.08) 0.100 ( 2.54) (This view shows straight leads.) 0.000 CASE D1 GULL-WING PADS 0.090 (2.29) 20 19 18 17 16 15 14 13 12 11 0.102 (2.59) 0.015 (0.38) 0.000 0.100 (2.54) 18X 0.08 (2.0) 2.115 ref. (53.72) Straight Leads 0.010 (0.25) Seam seal 0.250 max. (6.35) 1.35 ref. (34.29) 0.125 ref. (3.18) 1 0.010 (0.25) Gull Wing Leads Option 1 Leads are solder dipped and lead dimensions are prior to solder dip. 0.055 (1.40) 0.010 (0.25) Bottom of lead to bottom of case The gull wing option (configuration) requires “Z” as a “case designator” in the model number. ex. MGA2805Z (Center to center) 0.070 (1.78) 0.030 (0.76) 1.000 (25.40) 1.110 max (28.19) The triangle (ESD) marking on the cover indicates pin one. Cover marking is oriented with pin one at the upper right corner. The straight lead configuration does not require a “case designator” in the model number. ex. MGA2805S 0.50 (12.7) 1.000 (25.40) 1.110 max (28.19) 0.08 (2.0) Weight: 15 grams max. Dimensions in inches (mm) Tolerance ±0.005 (0.13) for three decimal places, ±0.01 (0.3) for two decimal places, unless otherwise specified Please refer to the numerical dimensions for accuracy. CAUTION Maximum reflow temperature is 220°C for a maximum of 30 seconds. SN60, SN62, or SN63 are the recommended types of solder. See MGA gull-wing solder pads layout. Hand soldering should not exceed 300°C for 10 seconds per pin. Materials Header Kovar/Nickel/Gold Cover Kovar/Nickel Pins Kovar/Nickel/Gold matched glass seal Gold plating of 50 - 225 microinches is included in pin diameter Seal hole: 0.040 ±0.002 (1.02 ±0.05) 0.050 (1.27) 4X Dimensions in inches (mm) Tolerance ±0.005 (0.13) for three decimal places ±0.01 (0.3) for two decimal places, unless otherwise specified. Please refer to the numerical dimensions for accuracy. CAUTION: Internal components are soldered with SN96 (melting temperature 221°C) to prevent damage during reflow. Maximum reflow temperature for surface mounting the MGA converter is 220°C for a maximum of 30 seconds. SN60, 62, or 63 are the recommended types of solder. Hand soldering should not exceed 300°C for 10 seconds per pin. SOLDER MASK NOTES 1. Pad dimensions are for the solder mask. Leads common to each other can be connected to each other as desired. 2. Ground (case) pins should be connected to the center pad for improved grounding. 3. Connect "no connection" pins to case ground to reduce EMI. 4. Center pad should not have a solder mask. Solder, copper, or Au/Ni plate are preferred over solder mask for adhesive attach. 5. Pre-tin base of converter prior to soldering. 6. If less rotation of case is desired, reduce the width of the large case pad by 0.020 inches (0.51 mm). Pad length can be extended 0.010 inches (0.25 mm) towards the case body and an as-desired dimension away from the case body. 7. Do not exceed 220°C as measured on the body of the converter (top or bottom). 8. Attach the body of the case to the board with a thermally conductive adhesive or SN60, 62, or 63 solder. The adhesive can be electrically conductive as well. It can be applied as an underfill post solder or dispensed and cured prior or during solder. 9. In the presence of vibration, to ensure reliable mechanical attachment, the body of the case should be attached with adhesive or solder as noted above (note 8). The leads alone do not provide sufficient mechanical attachment. Case D1 MGA Solder Pads, Rev F, 2013.05.31 Case D1, Rev D, 2013.04.22 Figure 27: MGA Case Dimensions Figure 28: MGA Gull-Wing Solder Pad Layout Surface Mount Case and Lead Options www.craneae.com/interpoint Page 13 of 15 MSA_MGA Rev AC - 2013.06.13 Crane Aerospace & Electronics Power Solutions MSA/MGA Single and Dual DC-DC Converters 28 Volt input – 5 Watt StanDarD anD /eS (nOn-QMl) anD /883 (ClaSS h, QMl) Mil-prf-38534 eleMent eValuatiOn COMpOnent-leVel teSt perfOrMeD nOn-QMl 1 QMl StanDarD anD /eS ClaSS h /883 M/S 2 M/S 2 p3 n n n Visual n n Internal Visual n Final Electrical n n Wire Bond Evaluation n n Element Electrical Notes: 1. Standard and /ES non-QML products may not meet all of the requirements of MIL-PRF-38534. 2. M/S = Active components (Microcircuit and Semiconductor Die) 3. P = Passive components, Class H element evaluation. Not applicable to Standard and /ES element evaluation. Table 12: Element Evaluation table 5: element evaluation–high reliability stanDarD, /es anD /883 (Class h) www.craneae.com/interpoint Page 14 of 15 MSA_MGA Rev AC - 2013.06.13 Crane Aerospace & Electronics Power Solutions MSA/MGA Single and Dual DC-DC Converters 28 Volt input – 5 Watt Table is for reference only. See individual Series' datasheets for specific screening. StanDarD anD /eS (nOn-QMl) anD /883 (ClaSS h, QMl) Mil-prf-38534 enVirOnMental SCreening nOn-QMl 1 teSt perfOrMeD pre-cap inspection, Method 2017, 2032 QMl StanDarD /eS ClaSS h /883 n n n temperature cycle (10 times) Method 1010, Cond. C, -65°C to +150°C, ambient n Method 1010, Cond. B, -55°C to +125°C, ambient n constant acceleration Method 2001, 3000 g n Method 2001, 500 g n burn-in Method 1015, +125°c case, typical 2 96 hours n 160 hours n Final electrical test, Mil-prF-38534, Group a, Subgroups 1 through 6, -55°C, +25°C, +125°C case Subgroups 1 and 4, +25°C case n n n n Gross Leak, Method 1014, Cond. C n n Fine Leak, Method 1014, Cond. A n n n n Hermeticity test Gross Leak, Dip n Final visual inspection, Method 2009 n Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534. Notes: 1. Standard and /ES, non-QML products, may not meet all of the requirements of MIL-PRF-38534. 2. Burn-in temperature designed to bring the case temperature to +125°C minimum. Burn-in is a powered test. Table 13: Environmental Screening table 6: environmental sCreening–high reliability stanDarD, /es anD /883 (Class h) MSA/MGA Single and Dual, MSA_MGA Rev AC - 2013.06.13. This revision supersedes all previous releases. All technical information is believed to be accurate, but no responsibility is assumed for errors or omissions. Crane Electronics, Inc. reserves the right to make changes in products or specifications without notice. Interpoint, MSA Series and MGA Series are trademarks of Crane Electronics, Inc. Copyright © 1999-2013 Crane Electronics, Inc. All rights reserved. www.craneae.com/interpoint Page 15 of 15