MTO1212TF/ES datasheet, PDF - EEWORLD Datasheet

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MTO1212TF/ES: DescriptionDC/DC converters 12 & 28 volt input; CategoryAnalog mixed-signal IC The signal circuit; File Size93KB，9 Pages; ManufacturerInterpoint （ Crane Aerospace & Electronics ）; Websitehttp://www.interpoint.com

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MTO1212TF/ES Overview

DC/DC converters 12 & 28 volt input

MTO1212TF/ES Parametric

Parameter Name	Attribute value
Maker	Interpoint （ Crane Aerospace & Electronics ）
package instruction	DIP, DIP10,1.0,400TB
Reach Compliance Code	unknown
Maximum input voltage	16 V
Minimum input voltage	9 V
JESD-30 code	R-MDIP-T10
Number of terminals	10
Maximum output current	2 A
Nominal output voltage	12 V
Package body material	METAL
encapsulated code	DIP
Encapsulate equivalent code	DIP10,1.0,400TB
Package shape	RECTANGULAR
Package form	IN-LINE
Certification status	Not Qualified
Filter level	MIL-STD-883 Class B (Modified)
surface mount	NO
technology	HYBRID
Terminal form	THROUGH-HOLE
Terminal pitch	10.16 mm
Terminal location	DUAL

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EATURES

•

–55°C to +85° C operation

9 to 16 or 16 to 36 VDC input

Fully isolated

Opto-coupler feedback

Fixed frequency, 250 kHz typical

Topology – Push-Pull Forward

50 V for 50 ms transient protection

Inhibit function

Indefinite short circuit protection

Up to 79% efficiency

DC/DC C

ONVERTERS

12 & 28 V

OLT

NPUT

MTO SERIES

15 WATT

MODELS

VDC O

UTPUT

TRIPLE

+5 & ±12

+5 & ±15

Size (max.): Non-flanged, case F4, 1.950 x 1.350 x 0.505 inches (49.53 x 34.29 x 12.83 mm)

Flanged, case J5, 2.720 x 1.350 x 0.505 inches (69.09 x 34.29 x 12.83 mm)

See Section B8, cases F4 and J5, for dimensions.

Weight:

53 grams typical

Screening: Standard or ES. See Section C2 for screening options, see Section A5 for

ordering information.

DESCRIPTION

Interpoint’s MTO Series™ of DC/DC converters delivers 15 watts of

output power with three output voltages and a choice of two input

voltage ranges. The MTO Series converters are packaged in

hermetically sealed metal cases and operate at full load over a case

temperature range of -55°C to +85°C (measured at the base plate

of the converter).

EATURES

An inhibit terminal, pin 8, provides shut-down and start-up control.

Applying a logic low (<0.8 V) will disable the output of the converter

reducing input current to 8 mA, typical. Leaving the terminal uncon-

nected or connecting it to Vin will enable the converter. The inhibit

pin has an open circuit voltage of approximately 10 volts.

Soft-start provides a controlled 20 milliseconds turn-on to minimize

inrush current and reduce overshoot at initial start-up or when inhibit

is released.

Internal current limiting circuitry protects all three outputs against

short circuits. When output power exceeds approximately 125% of

maximum output power, the output currents are limited. In addition,

separate current limiting circuitry protects each output individually.

ONVERTER

ESIGN

The push-pull forward topology coupled with pulse-width modulation

minimizes output noise and maintains good regulation. Nominal

switching frequency is 250 kHz. Although an internal input filter

reduces input ripple current, for applications requiring conformance

to MIL-STD-461C, CE03, use the MTO in conjunction with

Interpoint’s FM-461 EMI filter.

Operating at maximum ratings may require removing self-generated

heat. To increase heat dissipation, heat conducting material can be

used in contact with the converter’s base plate. Interpoint’s Thermal

Mounting Pad (TMP), model TMP-002, is designed for use with the

MTO converter.

ACKAGING

MTO converters are packaged in hermetically sealed metal cases.

The cases are constructed of cold-rolled steel with a fused tin finish.

MTO converters can be purchased in a flanged or non-flanged case.

The flanged option provides increased heat dissipation and also

provides greater stability when mechanically secured.

B4-23

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