M8727 ENERCON | Alldatasheet
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Page 1 of 7 Jul 13, 2021 | Rev (f) | Doc: DS_M8727 Series M8727 Series– DC/DC Power Supply Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in M8727 SERIES DUAL-OUTPUTS, 80W DC TO DC POWER SUPPLY The M8727 is a series of mechanically robust, base-plate cooled, high performance, power supplies, designed for Ground Mobile (MIL-STD-1275), Airborne (MIL-STD-704) and other Hi-Reliability applications where 28VDC has to be converted to a tightly regulated, filtered and protected DC output.
Page 2 of 7 Jul 13, 2021 | Rev (f) | Doc: DS_M8727 Series M8727 Series– DC/DC Power Supply Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in Standard Models List (for other voltages – consult factory) Part number Input Output 1 Output 2 Voltage range Output Power Voltage Current Voltage Current M8727-100 18VDC -48VDC 73W 3.3 VDC 10 A 5 VDC 8 A M8727-101 18VDC -48VDC 76W 5 VDC 8 A 12 VDC 3 A M8727-102 18VDC -48VDC 69W 12 VDC 3 A 3.3 VDC 10 A M8727-103 18VDC -48VDC 79.2W 28 VDC 1.4 A 5 VDC 8 A M8727-104 18VDC -48VDC 78.4W 48 VDC 0.8 A 5 VDC 8 A M8727-105 18VDC -48VDC 40W 5 VDC 5 A 5 VDC 3 A
- Additional standard configurations available. Contact factory for more details.
- All our products can be configured to comply with EU REACH regulations. Contact factory for more details.
Page 3 of 7 Jul 13, 2021 | Rev (f) | Doc: DS_M8727 Series M8727 Series– DC/DC Power Supply Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in THE MAIN FEATURES OF THE M8727 ARE: ➢ DC/DC Triple outputs power supply up to 80W ➢ 18 to 48VDC Standard Input version ➢ For extended input version - Please contact factory for more details ➢ Miniature size ➢ High efficiency ➢ Wide input range ➢ Up to 20 W/in³ ➢ Input / Output isolation ➢ Fixed switching frequency (250 kHz) ➢ TTL logic enable ➢ EMI filters included ➢ Indefinite short circuit protection with auto‐recovery ➢ Input over‐voltage shutdown with auto‐recovery ➢ Over temperature shutdown with auto‐recovery
Page 4 of 7 Jul 13, 2021 | Rev (f) | Doc: DS_M8727 Series M8727 Series– DC/DC Power Supply Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in SPECIFICATIONS: DC Input Voltage Range DC Input range: 18 to 48VDC For extended input version - Please contact factory for more details Isolation 200VDC between Input and Output 200VDC between Input and Case Input transient Input transient protection: All models withstand surges (no operation, no damage) IAW MIL‐STD‐ 1275A (100V for 50ms) and MIL‐STD‐704A/D (80V for 0.1s) DC Output Rating See table on page 6 Voltage Regulation Better than or equal to ±1% (low to high line voltage, no load to full load, –55 °C to +85 °C at baseplate). Ripple & Noise 50mVp‐p, typical (up to 1%) Current limiting (Foldback): Continuous protection for unlimited time Isolation 100VDC between Output and Case Current Limit & Overload Continuous protection for unlimited time Overload/short-circuit Efficiency Efficiency: Up to 82% Overvoltage Protection Over voltage protection: Passive transorb on output at +120°C ±5°C Over Temp. Protection Over temperature protection: Shutdown if baseplate temperature exceeds. +105°C ±5°C. Automatic recovery at baseplate temperature lower than +95°C ±5°C). Line/Load regulation Up to ±1% (Low to high line voltage, no load to full load, –55°C to +85°C)
Page 5 of 7 Jul 13, 2021 | Rev (f) | Doc: DS_M8727 Series M8727 Series– DC/DC Power Supply Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in Specifications (Cont.): Control & Indication INHIBIT Input The INHIBIT signal is used to turn the power supply ON and OFF. TTL “1” or OPEN – Power supply active (output turned on). TTL “0” or SHORT to Signal RTN – Power supply inhibited (output turned off). If this function is not required, leave this pin unconnected. SIGNAL RTN INHIBIT and SYNC signals are referenced to this pin. This pin is referenced to IN RTN SYNC IN signal The SYNC IN signal is used to allow the power supply frequency to sync with the system frequency. The system frequency should be 250 kHz ± 10 kHz. When not connected the power supply will work with internal sync at 250 kHz ± 10 kHz. This signal is referenced to the SIGNAL RTN pin. Environment Designed to meet MIL- STD-810F Temperature Operating ‐55°C to +85°C (baseplate) Storage ‐55°C to +125°C Humidity Method 507.4 Up to 95% RH Salt-fog Method 509.4 Altitude Method 500.4 Mechanical Shock Method 516.5 Vibration Method 514.5 Fungus Does not support fungus growth, in accordance with the guidelines of MIL-STD-454, Requirement 4 EMI MIL-STD-461F Designed to meet* MIL-STD-461F* CE101, CE102, CS101, CS114, CS115, CS116, RE101, RE102, RS101, RS103 Reliability 150,000 hours, calculated per MIL‐STD‐217F at +85°C baseplate, ground fixed Cooling Requirements The M8727 is a baseplate cooled unit. The base of the M8727 should be thermally attached to asuitable heatsink that maintains it below +85 °C. Form factor 2.6'' wide, 3.75'' high and 0.5'' deep. For detailed dimensions and tolerances see Drawing: M8727001 Weight 6.35oz (180gr) Connectors See Page 6 * Compliance achieved with 5μH LISN, shielded harness and static resistive load.
Page 6 of 7 Jul 13, 2021 | Rev (f) | Doc: DS_M8727 Series M8727 Series– DC/DC Power Supply Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in OUTPUTS RANGE Output # Voltage Range Current Range Output Regulation Power Range 1 1.5 to 70 VDC 0 to 10 A ±1% 0 to 40 W 2 1.5 to 70 VDC 0 to 10 A ±1% 0 to 40 W Total 0 to 80 W PIN ASSIGNMENT Connector type: Airborne RM272‐040‐312‐2900 or eq. Mates with: Airborne RM242‐040‐571‐5900 (crimp removable pins) or RM242‐040‐241‐ 5900 (solder cup pins). Notes: 1. SIGNAL RTN is the reference line for INHIBIT and SYNC signals. 2. For optimal performance, connect all pins with identical function/designation together. 3. Always connect the sense lines to either the respective load terminals or their respective output pins – do not leave the sense lines open! Please contact factory if sense functionality is not required. Pin No. Function 18, 19, 20, 38, 39 VOUT 1 (+) 16, 17, 35, 36, 37 VOUT 1 RTN ( –) 10, 11, 29, 30 VIN RTN (–) Pin No. Function 6, 7, 25, 26, 27 VOUT 2 RTN ( –)
1 SYNC
21 SIGNAL RTN
22 INHIBIT
40 SENSE 1 (+)
Pin No. Function
15 SENSE 1 RTN (–)
2 SENSE 2 (+)
8 SENSE 2 RTN ( –)
14 CHASSIS
9, 28, 31, 34 N.C.
Page 7 of 7 Jul 13, 2021 | Rev (f) | Doc: DS_M8727 Series M8727 Series– DC/DC Power Supply Switzerland sales@enercon-europe.com Israel sales@enercon.co.il India sales@mpsindia.in OUTLINE DRAWING For detailed dimensions and tolerances see Drawing: M8727001 Please note: Specifications are subject to change without prior notice by the manufacturer. Notes: 1. Dimensions are in Inches [mm] 2. Tolerance is: XX 0.01 IN XXX 0.005 IN 3. Weight: Approx. 6.35 oz (180g)