Wall Industries, Inc.

Rev D

MPQ SERIES

Up to 125 Watts, Quarter-Brick DC/DC Converters

02/15/2013

Wall Industries, Inc. • 5 Watson Brook Road, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797

website: www.wallindustries.com • e-mail: sales@wallindustries.com

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SPECIFICATIONS: MPQ SERIES

All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted.

We reserve the right to change specifications based on technological advances.

SPECIFICATION

TEST CONDITIONS

Min

Typ

Max

Unit

INPUT SPECIFICATIONS

Input Voltage Range

See Table

10-36 VDC Input Voltage Models

9.8

10.0

10.3

UVLO Turn On at

36-75 VDC Input Voltage Models

35.0

VDC

10-36 VDC Input Voltage Models

9.4

9.7

9.9

UVLO Turn Off at

36-75 VDC Input Voltage Models

34.0

VDC

Input Surge Voltage

100ms

50

VDC

External Filter Requirements

none

OUTPUT SPECIFICATIONS

Output Voltage

See Table

Output Voltage Set Point

±Sense shorted to ±Vout

-1

+1

%

Trim

-10

+10

%

Line Regulation

±Sense shorted to ±Vout

-0.2

+0.2

%

Load Regulation

±Sense shorted to ±Vout

-0.2

+0.2

%

Output Power

See Table

Output Current

See Table

Minimum Load

0

%

Ripple & Noise

See Table

Remote Sense Compensation

Measured at the converter output pins

+10

%

Temperature Coefficient

-0.02

+0.02

%/°C

MONOTONIC START-UP ACROSS ALL LOAD RANGES. CAPABLE OF STARTING INTO PRE-BIASED LOADS

PROTECTION

Short Circuit Protection

Continuous pulse-to-pulse (low power dissipation, auto-recovery)

Over Voltage Protection

130

% Vo

Current Limit Inception

130

% Vo

Thermal Shutdown

PCB Temperature

+110

+125

°C

REMOTE ON/OFF

Remote ON

Min High to Enable

1.5

Active High (Standard)

Remote OFF

Max Low to Disable

0.3

VDC

Remote ON

Max Low to Disable

0.8

Active Low (“R” Suffix)

Remote OFF

Min High to Enable

2.1

VDC

Active High

1.6

5.2

Remote ON/OFF Pin Floating

Active Low

Over operating voltage range

2.3

6.2

VDC

Active High

0.15

Active Low

0.6

mA

Active High or Active Low

0

mA

GENERAL SPECIFICATIONS

Efficiency

24Vin Models

200

Switching frequency

48Vin Models

330

kHz

Input - Output

For 1 minute

1000

Input – Chassis

For 1 minute

1000

Isolation Voltage

Output - Chassis

1000

VDC

Isolation Resistance

At 25°C

20

GΩ

Isolation Capacitance

0.01

µF

ENVIRONMENTAL SPECIFICATIONS

Operating Temperature

Semiconductor junction temperature limit

-40

+25

+125

°C

Storage Temperature

-55

+125

°C

Cooling

Free air convection

MTBF

Calculated using Bellcore TR-332 Method 1 case 3

1,250,300 hours min.

PHYSICAL SPECIFICATIONS

Weight

2.15oz (61g)

Open Frame (for 48Vin models only)

2.28 x 1.45 x 0.43 in (57.9 x 36.8 x 10.8 mm)

With Case (Add the suffix “C” to the model number)

2.37 x 1.54 x 0.60 in (60.2 x 39.1 x 15.1 mm)

Dimensions (L x W x H)

With Heatsink (Add the suffix “HS” to the model number)

2.37 x 1.54 x 0.85 in (60.2 x 39.1 x 21.5 mm)