MHL0512D INTERPOINT [Interpoint Corporation Company], MHL0512D Datasheet

MHL0512D

Manufacturer Part Number

MHL0512D

Description

DC/DC CONVERTERS 5 VOLT INPUT

Manufacturer

INTERPOINT [Interpoint Corporation Company]

Datasheet

1.MHL0512D.pdf (7 pages)

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Bonase Electronics (HK) Co., Limited

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MHL0512D

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• –55°C to +85°C operation

• 4 to 8 VDC input

• Fully isolated

• Opto-coupler feedback

• Fixed frequency, 210 kHz typ.

• Inhibit function

• Indefinite short circuit protection

• Up to 80% efficiency

DESCRIPTION

The MHL Series™ of DC/DC converters offers either ±12 or ±15 volt

outputs in a single package. MHL converters offer the high efficiency

and wide input range of switching regulators with excellent load and

line regulation. Input and output grounds are isolated from one

another and from case ground. No external components are

required for operation. The units are built using thick-film hybrid

technology and are sealed in metal packages for military, aero-

space, and other high-reliability applications. Unscreened models

are sealed with solder and are guaranteed to pass a gross leak test

(maximum leak rate of 1 x 10

screened models (/ES) are hermetically sealed with solder and will

pass a fine leak and gross leak test as described in Section C2.

The MHL converters employ pulse-width modulated switching regu-

lator techniques in the forward mode, with a nominal clock

frequency of 210 kHz. Isolation is achieved through the use of a

transformer in the forward power circuit and an opto-coupler in the

feedback/control loop. The full load output power (15 watts) is avail-

able over the input range of 4 to 8 VDC. Up to 14.3 watts can be

obtained from a single output up to a combined load of 15 watts.

EATURES

Typical Performance Curve

MHL0515D Efficiency

=4 V

OUTPUT POWER (WATTS)

=8 V

Size (max.): Non-flanged, case F4

Weight:

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

IGURE

-3

atm.-cc/sec). Environmentally

=5 V

Flanged, case J5

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

57 grams typical

A5 for ordering information.

DC/DC C

1.950 x 1.350 x 0.505 inches (49.53 x 34.29 x 12.83 mm)

2.720 x 1.350 x 0.505 inches (69.09 x 34.29 x 12.83 mm)

5 V

OLT

ONVERTERS

The efficiency is high over the entire input voltage range and from

approximately 25% of full load to full load. This feature makes the

converters ideal for either battery or aircraft power applications.

An inhibit function is provided to allow power shut-down and start-

up from a logic input. An open circuit on the inhibit terminal produces

normal operation, and a low level disables the converter. Input

current in the inhibit mode is typically 20 mA. The converter features

a “soft-start” function which provides a controlled 20 millisecond

turn-on upon application of input power or inhibit release.

An input filter is incorporated in the unit to reduce input reflected

ripple current. Both outputs are indefinitely protected against short

circuits to ground or to one another by automatic current limiting

circuitry. This feature adjusts the converter’s output current, indefi-

nitely maintaining it below approximately 125% of the rated

maximum during a full short circuit condition.

The MHL Series of converters is rated to operate at full load at a

case temperature of 85°C, with the output power derated linearly to

zero at 115°C (0.5W/°C). Because of the unit’s high efficiency, heat

sinking requirements are minimized, but due consideration should

be given to removing self-generated heat when operating the device

at maximum ratings. To increase dissipation, heat conducting mate-

rial (PCB, copper sheet, heat sink, or Interpoint’s TMP accessory)

should be brought into contact with the converter’s baseplate.

When the MHL is used in applications requiring full-power operation

for extended periods of time, or in shock and vibration environ-

ments, it is highly recommended that the flange-mount case option

be used. This option provides improved thermal transfer capabilities

as well as mechanically secure mounting configuration.

NPUT

MHL SERIES

VDC O

MODELS

15 WATT

DUAL

±12

±15

UTPUT

B4-17

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MHL0512D Summary of contents

Page 1

F EATURES • –55°C to +85°C operation • VDC input • Fully isolated • Opto-coupler feedback • Fixed frequency, 210 kHz typ. • Inhibit function • Indefinite short circuit protection • 80% efficiency Size (max.): ...

Page 2

... ONVERTERS MODEL NUMBERING KEY MHL Base Model Input Voltage Output Voltage Number of Outputs (S = single dual) Case Option (Non-flanged case has no designator in this position) Screening (Standard screening has no designator in this position.) MHL0512D MIN TYP MAX +V 11.88 12.00 12.12 OUT –V 11.88 12.00 12.12 OUT — — 1.25 — ...

Page 3

CASE F Dot on top of case indicates pin one CASE F BOTTOM VIEW See Figures for pin configuration 1.950 max (49.53) CAUTION Heat from reflow or wave soldering may damage the device. Solder pins individually with ...

Page 4

CASE F MTO and MHL Series: Screening – Standard or ES HR153 Series: no screening options Solder Seal Solder Tip-off B8-14 C ASES BOTTOM VIEW CASE F4 Squared corner and dot on top of case indicate pin one. 1.170 (29.72) ...

Page 5

CASE J Flange Thickness: Cases J1 and J5 Case J2 Cases J3 and J4 Materials Header Case J1 Cases Cover Case J1 Case Pins #52 alloy (all cases) Case J1 Cases ...

Page 6

Flanged cases: Designator required in Case Option position of model number. FMD28-461 EMI Filter (down-leaded): Screening – Standard or ES Solder Seal 1.173 (29.79 0.040 dia. (1.02) 0.673 (17.09) Solder Tip-off 0.173 (4.39) 0.000 Flanged cases: Designator required in Case ...

Page 7

QA SCREENING 85°C PRODUCTS TEST (85°C Products excluding HR products) PRE-CAP INSPECTION Method 2017 TEMPERATURE CYCLE (10 times) Method 1010, Cond. B, -55°C to 125°C CONSTANT ACCELERATION Method 2001, 500 g BURN-IN 96 hours at 70°C ambient (typical) FINAL ELECTRICAL ...

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