MTR50 Datasheet, PDF (1/20 Pages) Interpoint Corporation Company – MTR (50) Single and Dual DC-DC Converters

Crane Aerospace & Electronics Power Solutions
MTR (50) Single and Dual DC-DC Converters
28 (16-50) Volt input – 30 Watt
Features
• Input voltage range 16 to 50 volts
• Transient protection up to 80 volts
per MIL-STD-704A
• Operating temperature -55°C to +125°C
• Fully isolated, magnetic feedback
• Fixed high frequency switching
• Inhibit and synchronization function
• Indefinite short circuit and overload protection
Legacy MTR (40):
16 - 40 Vin, 50 V transient / 50 ms.
Datasheet at www.interpoint.com/mtr40
models
Output Voltage (V)
SINGLE DUAL
3.3
±5
5
±12
8.5
±15
12
15
DESCRIPTION
The Interpoint® MTR Series™ of dc-dc converters offers
up to 30 watts of output power from single or dual output
configurations. MTR (50) models have a wide input voltage
range of 16 to 50 volts. Transient protection of up to 80 volts
input meets the transient requirements of MIL-STD-704A. The
converters operate over the full military temperature range
with up to 81% efficiency. MTR converters are packaged in
hermetically sealed metal cases, making them ideal for use in
military, aerospace and other high reliability applications. The
converters are offered with standard screening, “ES” screening,
or fully compliant to “883” MIL-PRF-38534 Class H screening.
See Table 9 on page 19 and Table 10 on page 20. Standard
microcircuit drawings (SMD) are available refer to Table 3 on
page 6.
Cover Marking
The cover marking for the MTR 50 has “MTR (50) DC-DC
CONVERTER” below the model number. Refer to Figure 8 on
page 6.
Converter Design
The MTR converters are constant frequency, ­pulse-width
mod­ulated switching regulators which use a quasi-square wave,
single ended, forward converter design. Tight load regulation
is maintained via wide bandwidth magnetic feedback and, on
single output models, through use of remote sense. On dual
output models, the positive output is independently regulated and
the negative output is cross regulated through the use of tightly
coupled magnetics.
Indefinite short circuit protection and overload protection are
­provided by a constant current-limit feature. This protective
system senses current in the converter’s secondary stage and
limits it to approximately 140% of the maximum rated output
current.
MTR converters are provided with internal filtering capacitors
that help reduce the need for external components in normal
­operation. Use our FMCE-0328™, FMCE-0528™ or FMCE-
0828™ EMI filter to meet the requirements of MIL-STD-461C
CE03 and CS01 and/or MIL-STD-461D, E and F CE102 and
CS101 levels of conducted emissions.
Crane Aerospace & Electronics
Power Solutions – Interpoint Products
10301 Willows Rd. NE, Redmond, WA 98052
[phone] • [e-mail]
www.craneae.com/interpoint
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MTR-02 Rev AE - 2016.04.26