MSM283R3S INTERPOINT | Alldatasheet

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Technical content

5 WATT

FEATURES

  • –55°C to +125°C operation
  • 16 to 40 VDC input
  • Surface mountable
  • Will withstand solder reflow
  • Transient protection up to 80V/120 ms, meets MIL-STD-704A requirements
  • Inhibit function
  • Fully isolated
  • Ultra-wide bandwidth magnetic feedback
  • Up to 82% efficiency
  • Indefinite short circuit protection
  • Undervoltage shutdown below 10 Vin

DESCRIPTION

The MSM Series™ of DC/DC converters delivers up to 5 watts in a surface mountable package. The use of commercially available discrete components, printed wiring board construction, and surface mount technology keep costs low. Mature design technology and severe derating maintain high-reliability, providing full power opera- tion over the full military temperature range of –55 to +125°C. Output voltages of 3.3, 5, 5.2, 12, 15, ±12, or ±15 operate from an input range of 16 to 40 VDC. Operation below 16 volts is possible at reduced power while still maintaining output regulation. The converters are rated for input transients up to 80 V for up to 120 milliseconds which meets the requirements for MIL-STD-704A. CONVERTER DESIGN The converters incorporate a flyback topology with a constant frequency to minimize EMI and noise. The pulse-width-modulator is constructed of discrete devices to allow to the use of mature tech- nologies and assure operation over the full temperature range. A proprietary magnetic isolator, designed with feed-forward and load correction, provides nearly instantaneous output control for good output regulation. INHIBIT FUNCTION MSM Series converters provide a TTL open collector-compatible inhibit feature that 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. The converter is inhibited when the TTL compatible low ( ≤0.8 V) is applied to the inhibit pin. The unit is enabled when the pin, which is internally connected to a pull-up resistor, is left unconnected or is connected to an open collector gate. The open circuit output voltage associated with the inhibit pin is 9 to 11 V. In the inhibit mode, a maximum of 0.5 mA must be sunk from the inhibit pin. PROTECTION FEATURES Undervoltage lockout prevents the MSM Series converters from operating below approximately 10 VDC input. This circuitry can prevent system shutdown problems in starting “constant power” devices at low input voltages. All models include a soft-start function to prevent large current draw and minimize overshoot under all load and line conditions. The MSM Series of converters also provide short circuit and overload protection. Short circuit internal dissipation is lower than the internal dissipation which occurs during full load conditions. SURFACE MOUNTABLE PACKAGING The MSM Series of DC/DC converters can be surface mounted or hand-soldered. Maximum reflow temperature for surface mounting the MSM converter is 230°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. DC/DC CONVERTERS

28 VOLT INPUT

Weight: 20 grams maximum MODELS VDC OUTPUT SINGLES 3.3 DUALS ±12 ±15

RECOMMENDED OPERATING CONDITIONS ABSOLUTE MAXIMUM RATINGS INHIBIT MSM SERIES SINGLE OUTPUT MODELS MSM283R3S MSM2805S MSM2812S MSM2815S PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS OUTPUT CURRENT V IN = 16 TO 40 VDC — 1.52 — — 1.0 — — 0.42 — — 0.33 — A OUTPUT POWER V IN = 16 TO 40 VDC 0 — 5 0 — 5 0 — 5 0 — 5 W OUTPUT RIPPLE 10 kHz - 2 MHz — 250 — — 200 — — 180 — — 150 — mV p-pVOLTAGE Tc = –55°C TO +125°C — 1800 — — 1500 — — 1200 — — 1000 — LINE REGULATION V IN = 16 TO 40 VDC — 60 — — 80 — — 120 — — 150 — mV LOAD REGULATION NO LOAD TO FULL — 150 — — 250 — — 350 — — 400 — mV INPUT VOLTAGE CONTINUOUS 16 28 40 16 28 40 16 28 40 16 28 40 VDC NO LOAD TO FULL TRANSIENT 120 ms 0 — 80 0 — 80 0 — 80 0 — 80 V INPUT CURRENT NO LOAD — 28 — — 25 — — 20 — — 16 — FULL LOAD — 242 — — 235 — — 230 — — 223 — mA INPUT RIPPLE 10k Hz - 10 MHz — 30 — — 25 — — 20 — — 15 — mA p-pCURRENT Tc = –55°C TO +125°C — 180 — — 150 — — 120 — — 100 — EFFICIENCY Tc = 25°C — 74 — — 76 — — 78 — — 80 — % LOAD FAULT POWER DISSIPATION RECOVERY2 — 9 — — 8.5 — — 8 — — 7.5 — ms OUTPUT CURRENT ASHORT CIRCUIT — 2.3 — — 1.6 — — 0.8 — — 0.6 — STEP LOAD 50 %–100%– 50% RESPONSE TRANSIENT 3 — 350 — — 350 — — 400 — — 400 — mV pk STEP LINE 16 TO 40 TO 16 V INRESPONSE TRANSIENT 3 — 400 — — 400 — — 500 — — 500 — mV pk START-UP DELAY — 4 — — 4 — — 4 — — 4 — ms

0 TO 28 VIN OVERSHOOT — 250 — — 300 — — 350 — — 400 — mV pk

  • 16 to 40 VDC Output Power
  • 5 W Power Dissipation
  • 1.9 W Lead Soldering Temperature (10 sec per lead)
  • 300°C Storage Temperature Range (Base plate)
  • –55°C to +130°C Input Voltage Range
  • 16 to 40 VDC continuous
  • 80 V for 120 msec transient Case Operating Temperature (Tc)
  • –55°C to +125°C full power
  • –55°C to +130°C absolute Derating Output Power/Current (Tc)
  • Linearly from 100% at 125°C to 0% at 130°C Inhibit – TTL Open Collector
  • Logic low (output disabled)
  • Inhibit pin current 0.34 mA typ
  • Referenced to input common
  • Logic high (output enabled) open collector Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. Output Voltage Temperature Coefficient
  • 200 ppm/°C typical Temperature Rise (Still Air)
  • 18°C / watt dissipated, typical Input to Output Capacitance
  • 100 pF typical Undervoltage Lockout
  • 10 V input typical Current Limit
  • 160% of full load typical Isolation
  • 100 megohm minimum at 500 V Conversion Frequency (kHz)
  • 25°C, 200 min, 300 typ, 400 max Inhibit Pin Voltage (unit enabled)
  • 10 V, typical Notes: 1. Short circuit is measured with a 50 mohm resistive load. 2. Time to settle within 1% of V OUT 3. Transition ≥ 10 µs.

Notes: 1. The maximum specification indicates the converter’s total output power, Up to 75% of the total is available from either output providing the other output maintains a minimum of 25% of the total power. 2. Short circuit is measured with a 50 mohm resistive load. 3. Time to settle within 1% of V OUT 4. Transition ≥ 10 µs. DUAL OUTPUT MODELS MSM2812D MSM2815D PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS OUTPUT VOLTAGE Tc = 25°C ±11.82 ±12 ±12.18 ±14.78 ±15 ±15.23 VDC OUTPUT CURRENT V IN = 16 TO 40 VDC 0 ±208 — 0 ±167 — mA OUTPUT POWER1 VIN = 16 TO 40 VDC 0 — 5 0 — 5 W OUTPUT RIPPLE 10 kHz - 2 MHz — 180 — — 150 — VOLTAGE +VOUT Tc = –55°C TO +125°C — 1200 — — 1000 — mV p-p –VOUT 10 kHz - 2 MHz — 180 — — 150 — Tc = –55°C TO +125°C — 1200 — — 1000 — LINE REGULATION +V OUT — 120 — — 150 — mV VIN = 16 TO 40 VDC –V OUT — 120 — — 150 — LOAD REGULATION +V OUT — 350 — — 400 — mV NO LOAD TO FULL –V OUT — 350 — — 400 — INPUT VOLTAGE CONTINUOUS 16 28 40 16 28 40 VDC NO LOAD TO FULL TRANSIENT 120 ms 0 — 80 0 — 80 V INPUT CURRENT NO LOAD — 20 — — 16 — FULL LOAD — 230 — — 220 — mAINHIBITED — 4.5 — — 4.5 — INPUT RIPPLE 10 kHz - 2 MHz — 20 — — 15 — mA p-pCURRENT Tc = –55°C TO +125°C — 120 — — 100 — EFFICIENCY — 80 — — 82 — % LOAD FAULT POWER DISSIPATION OVERLOAD — 1.7 — — 1.5 — W SHORT CIRCUIT2 — 0.8 — — 0.7 — RECOVERY3 — 8.0 — — 7.5 — ms OUTPUT CURRENT TRIP POINT — 350 — — 280 — SHORT CIRCUIT — 380 — — 300 — mA STEP LOAD 50 %–100%– 50% RESPONSE ± VOUT TRANSIENT4 — 400 — — 400 — mV pk RECOVERY3 —1 — —1— m s STEP LINE 16 TO 40 TO 16 V IN RESPONSE ± VOUT TRANSIENT4 — 500 — — 500 — mV pk RECOVERY3 —2 — —2— m s START–UP ± VOUT DELAY — 4 — — 3.5 — ms OVERSHOOT — 350 — — 400 — mV pk Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.

(S = single, D = dual) PIN OUT MSM SERIES Pin Single Output Dual Output

1 Input Common Input Common

2 Input Common Input Common

3 Positive Input Positive Input

4 No connection No connection

5 Inhibit Inhibit

6 No connection No connection

7 Output Common Output Common

8 Positive Output Positive Output

9 Output Common Output Common

10 No connection Negative Output

FIGURE 1: PIN OUT Top View Component Side 5 6

5 WATTDC/DC CONVERTERS

27922 DTS Rev B 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. MSM Series is a trade- mark of Interpoint. Copyright © 2000-2001 Interpoint. All rights reserved. 2.00 (50.8) 2.00 (50.8) 0.02 (0.51) 0.00 0.25 0.65 0.95 1.25 1.65 FIGURE 2: MSM SERIES OUTLINE DRAWING Case dimensions in inches (mm) spacing tolerance is ±0.010 CAUTION Maximum reflow temperature for surface mounting the MSM converter is 230 °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. 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. 0.312 max. (7.92) Contact Information: Interpoint Headquarters USA Phone: 1-800-822-8782 +425-882-3100 Email: power@intp.com www.interpoint.com Interpoint UK Phone: +44-1252-815511 Email: poweruk@intp.com Interpoint France Phone: +33-134285455 Email: powerfr@intp.com

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