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MPB125

Multiple-Output AC-DC Series

Power-One Inc. 

MPB125 Multiple-Output AC-DC Series Data Sheet

Interface Signals and Internal Protection (Cont.)

PARAMETER

Power Good Signal

CONDITIONS/DESCRIPTION

MIN

NOM

MAX

UNITS

AC/DC indicator - This signal indicates the status of the AC input or DC outputs.

When there is sufficient AC voltage and the outputs are operating normally, an

open collector signal is provided.

Turn-On delay time from application of AC:

50

500

Warning time before outputs go out of regulation:

5

ms

Warning time before outputs deviate ±10% from the nominal value:

15

Sync Current

20

mA

Pull-up Voltage

30

V

Power Supply OK Signal

Provided on dual-output models. Open collector signal intended to drive an LED.

Closed collector occurs when the Power Good Signal is in its open collector state.

Sync Current

Pull-up Voltage

20

mA

30

V

Thermal Shutdown

Current Share

Isolation Diode

Protected against overtemperature conditions.

Unit recovers when overtemperature condition is removed.

Provided on dual-output models. Up to 4 units can be connected in parallel.

There are some limits for parallel operation. See MPB125 Applications Note.

N+1 redundancy is provided. V2 needs an external isolation diode for N+1 operation.

An external diode is required on MPB125-2003 and MPB125-2005 models for

redundancy on both V1 and V2, or when ordering, you can specify MPB125-2003D or

-2005D which have an internal isolation diode.

Internal isolation diode is provided on V1 for all dual-output models except the

MPB125-2003 and MPB125-2005. Specify MPB125-2003D or MPB125-2005D,

respectively, if an internal isolation diode is required for these models.

Safety, Regulatory, and EMI Specifications

PARAMETER

CONDITIONS/DESCRIPTION

MIN

NOM

MAX

UNITS

Agency Approvals

UL60950-1.

CSA 22.2 No. 60950-1.

EN60950 (TÜV).

IEC60950-1.

Dielectric Withstand Voltage

AC to chassis.

Input to output.

1500

VAC

3000

VDC

Electromagnetic Interference EN55022 Conducted.

B

Class

ESD Susceptibility

Per EN61000-4-2, Level 4

8

kV

Flicker

Per EN61000-3-3.

Radiated Susceptibility

Per EN61000-4-3.

3

V/m

EFT/Burst

Per EN61000-4-4.

1

kV

Input Transient Protection

Per EN61000-4-5, Level 3, 2 kV (Line-to-Gnd) minimum, 1 kV (Line-to-Line) minimum.

RF Immunity

Per EN61000-4-6. 0.15 to 80 MHz (1 kHz sinewave)

3

V/m

Magnetic Fields

Per EN61000-4-8.

1

A/m

Voltage Dips

Per EN61000-4-11.

Insulation Resistance

Input to output.

10

M⍀

Leakage Current

Per EN60950 (264 VAC)

1.0

mA

OCT 24, 2005 revised to JUN 05, 2006

Page 3 of 9

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