MCH2805D Interpoint Corp., MCH2805D Datasheet

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MCH2805D

Manufacturer Part Number
MCH2805D
Description
Manufacturer
Interpoint Corp.
Datasheet
1.MCH2805D.pdf (18 pages)

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Bonase Electronics (HK) Co., Limited Bonase Electronics (HK) Co., Limited
Part Number:
MCH2805D
Quantity:
10
F
• -55°C to +125°C operation
• 12 to 50 VDC input
• Fully isolated
• Magnetic feedback
• Fixed frequency 370 kHz typ.
• Topology – Current Mode Flyback
• 80 V for up to 120 ms transient protection
• Inhibit function
• Indefinite short circuit protection
• Undervoltage lockout
• Up to 79% efficiency (MGH models)
MCH SERIES™ SINGLE & DUAL
DC/DC CONVERTERS
With a miniature footprint of just 0.8 square inches, the MCH
Series™ of DC/DC converters delivers 1.5 watts of output power
while saving significant board real estate. The wide input voltage
range of 12 to 50 VDC accepts the varying voltages of military, aero-
space, or space bus power and tightly regulates output voltages to
protect downstream components. Transient protection of 80 volts for
up to 120 milliseconds exceeds the requirements of MIL-STD-704A
for the 5, 5.2, and 12 volt single models and the 12 volt dual model.
The 15 volt single and dual converters will withstand transients of up
to 70 volts for up to 120 milliseconds.
C
MCH Series DC/DC converters incorporate a continuous flyback
topology with a constant switching frequency of approximately 370
kHz. Current-mode pulse width modulation (PWM) provides output
voltage regulation. Output error voltage is magnetically fed back to
the input side of the PWM to regulate output voltage. Regulation is
also affected by the load; refer to the Electrical Characteristics
tables on the following pages.
Dual models regulate the negative output with magnetic coupling to
the positive output. Up to 80% of the total load may be on one output
providing that the other output carries a minimum of 20% of the total
load. The dual models can be used at double the output voltage by
connecting the load between positive and negative outputs, leaving
the common unconnected. (ex: MCH2805D can be used as a 10
VDC output.)
Crane Aerospace & Electronics
Electronics Group (Interpoint Brand)
PO Box 97005 • Redmond WA 98073-9705
425.882.3100 • electronics@craneae.com
www.craneae.com
EATURES
ONVERTER
(70 V for 15 V single and dual models)
D
ESIGN
MCH/MGH Single and Dual DC/DC Converters
28 VOLT INPUT – 1.5 WATT
Rev E - 20060508
Page 1 of 18
I
When an open collector TTL logic low is applied to the inhibit
terminal, pin 7, the converter shuts down and lowers the output
voltage to near zero and input current to as low as 2.3 mA. Leaving
the terminal open or applying an open collector TTL logic high will
enable the converter.
P
Undervoltage lockout prevents the MCH Series converters from
operating below approximately 8 VDC input voltage to keep system
current levels smooth, especially during initialization or re-start oper-
ations. All models include a soft-start function to prevent large
current draw and minimize overshoot. The converters also provide
short circuit protection by restricting the current.
MIL-STD-461
Use Interpoint’s FMSA-461 EMI filter to pass the CE03 requirements
of MIL-STD-461C.
C
The MCH Series converters are packaged in hermetically sealed,
projection-welded metal cases which provide EMI/RFI shielding.
NHIBIT
ROTECTION
ONVENIENT
F
UNCTION
Crane Aerospace & Electronics Power Solutions
F
P
EATURES
ACKAGING
SINGLES
5.2
12
15
(MCH)
5
VDC O
MODELS
UTPUT
DUALS
±12
±15
±5

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MCH2805D Summary of contents

Page 1

... The dual models can be used at double the output voltage by connecting the load between positive and negative outputs, leaving the common unconnected. (ex: MCH2805D can be used VDC output.) Crane Aerospace & Electronics Electronics Group (Interpoint Brand) PO Box 97005 • ...

Page 2

MCH/MGH Single and Dual DC/DC Converters MGH SERIES™ SINGLE & DUAL DC/DC CONVERTERS The MGH Series™ of DC/DC converters delivers 1.5 watts of output power in a labor saving surface mount package. The wide input voltage range ...

Page 3

MCH/MGH Single and Dual DC/DC Converters OPERATING CONDITIONS AND CHARACTERISTICS Input Voltage Range • VDC continuous • for 120 msec transient (70 V for 15 V single and dual models) Output Power • 1.5 W ...

Page 4

MCH/MGH Single and Dual DC/DC Converters PIN OUT MCH MODELS Pin Single Output Dual Output 1 Positive Input Positive Input 2 Input Common Input Common 3 Positive Output Positive Output 4 Output Common Output Common 5 Case Ground Case Ground ...

Page 5

... Model Selection number of outputs case option duals: 5, 12, 15 /ES (ES screening), /883 (Class H, QML) Page Rev E - 20060508 SMD NUMBERS M MCH S ICROCIRCUIT ERIES D (SMD RAWING IMILAR ART 5962-9569601HXC MCH2805S/883 5962-9569701HXC MCH2812S/883 5962-9569801HXC MCH2815S/883 5962-9570201HXC MCH2805D/883 5962-9570301HXC MCH2812D/883 5962-9570401HXC MCH2815D/883 screening ...

Page 6

MCH/MGH Single and Dual DC/DC Converters MGH Model Selection Table (see previous page for MCH options) MODEL NUMBERING KEY MGH Base Model Input Voltage Output Voltage Number of Outputs (S = single dual) Gull Wing Lead Option (Straight ...

Page 7

MCH/MGH Single and Dual DC/DC Converters Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. MCH SINGLE OUTPUT MODELS PARAMETER 2 OUTPUT VOLTAGE Tc = –55°C TO +125°C OUTPUT CURRENT OUTPUT POWER OUTPUT RIPPLE VOLTAGE Tc = ...

Page 8

MCH/MGH Single and Dual DC/DC Converters Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. MGH SINGLE OUTPUT MODELS PARAMETER CONDITIONS 1 OUTPUT VOLTAGE Tc = 25° –55°C TO +125°C OUTPUT CURRENT ...

Page 9

... Lin = 2 μH. 4. Maximum duration of short circuit: 25°C-– 90 seconds, 125°C – 30 seconds. 5. Load fault is a short circuit (<50 mohms). Recovery is into resistive full load, with one output shorted at a time. www.craneae.com 28 VOLT INPUT – 1.5 WATT MCH2805D MIN TYP MAX MIN Tc = 25°C ± ...

Page 10

MCH/MGH Single and Dual DC/DC Converters Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. MGH DUAL OUTPUT MODELS PARAMETER CONDITIONS 1 OUTPUT VOLTAGE Tc = 25° –55°C TO +125°C 2 OUTPUT CURRENT V = ...

Page 11

MCH/MGH Single and Dual DC/DC Converters Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified VOLT 70 28 VOLT 50 VOLT 0.25 0.5 0.75 1 1.25 1.5 1.75 ...

Page 12

MCH/MGH Single and Dual DC/DC Converters Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified for –V OUT –V +V OUT OUT 0 V for +V OUT ...

Page 13

MCH/MGH Single and Dual DC/DC Converters Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified VOLT 70 28 VOLT 50 VOLT 0.25 0.5 0.75 1 1.25 1.5 1.75 0 ...

Page 14

MCH/MGH Single and Dual DC/DC Converters Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified for –V out –V +V out 0 V for +V out ...

Page 15

... Please refer to the numerical dimensions for accuracy. All 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. Copyright © 1999-2006 Interpoint Corp. All rights reserved. www.craneae.com 28 VOLT INPUT – 1.5 WATT ...

Page 16

MCH/MGH Single and Dual DC/DC Converter Cases Differently colored glass bead around pin one or dimple in header (bottom or side of case) indicates pin one. Cover marking is oriented with pin one at the upper right corner. 0.900 (22.86) ...

Page 17

MCH/MGH Single and Dual DC/DC Converters 883 QML P LASS E LEMENT T EST ( COMPONENT LEVEL Element Electrical (probe) Element Visual Internal Visual Final Electrical Wire Bond Evaluation SLAM™/C-SAM: Input Capacitors only (Add’l test, not req. by ...

Page 18

MCH/MGH Single and Dual DC/DC Converters 883 QML P LASS TEST Pre-cap Inspection Method 2017, 2032 Temperature Cycle (10 times) Method 1010, Cond. C, -65°C to 150°C, ambient Method 1010, Cond. B, -55°C to 125°C, ambient Constant Acceleration ...

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