P

-

+

-

+

-

+

-

+

V1 Output

V1 Output

V1 Output

- S

ens

e

+ Se

nse

Current

Share

Current

Share

Pin 9

CMP250PSXX (1)

CMP250PSXX (2)

CMP250PSXX (3)

Load

AC OK Collector

Pin 11

AC OK Emitter

5 V Standby pin 1

or pin 2

POWER SUPPLY

Transistor On (<0.8 V):

AC OK

Transistor Off (>4.5 V):

AC NOT OK

Signal Connectors

1 K

5 V Standby

Pin 3 or 4

Max 30 V 10 mA

(1)

CMP250PSXX (2)

C

(3)

L

P

Inhibit Hi

Pin 10

POWER SUPPLY

Signals Connector

Pin 8 (-sense)

(1)

CMP250PSXX (2)

C

(3)

L

CMP250 Series

www.xppower.com

4

AC-DC Power Supplies

Signals & Controls - Optional

Characteristic

Notes & Conditions

Remote Sense

Compensates for 0.5 V total voltage drop.

5 V Standby Supply (V2)

5 V/1.5 A supply, always present when AC supplied, isolated supply.

12 V Aux. (V3)

12 V/0.6 A supply, present when AC supplied, inhibit turns supply off. Referenced to V1 return.

AC OK/Power Fail

AC OK is an open collector transistor, referenced to V1 return, providing a minimum of 3 ms warning of loss of output

regulation. The transistor is normally on when AC is healthy. See fig. 5.

Inhibit

The inhibit high pin should be pulled below 0.4 V to switch V1 & V Aux (V3) off. Open circuit or 2-8 V maximum to

switch the output on. See fig. 6.

Current Share

Connecting pin 9 like voltage units (3 maximum) will force the current to share between the outputs. Units share

current within 10% of each other at full load. See fig. 7.

Figure 5

Power Fail

Figure 6

Inhibit (High)

Parallel & Current Share

Environmental

Characteristic

Minimum

Typical

Maximum

Units

Notes & Conditions

Operating Temperature

-40

+70

°C

See derating curve, fig.8. and Thermal Considerations on page 8.

Storage Temperature

-40

+85

°C

Cooling

Convection-cooled

Humidity

95

%RH

Non-condensing

Operating Altitude

5000

m

Information Technology

4000

Medical

Shock

±3 x 30g shocks in each plane, total 18 shocks. 30g = 11ms (±0.5msec), half sine. Conforms to EN60068-2-27 & EN60068-2-47

Vibration

Single axis 10 - 500 Hz at 2g sweep and endurance at resonance in all 3 planes. Conforms to EN60068-2-6

-40

-20

0

+70

+50

50

100

Ambient Temperature (ºC)

0

Figure 8

Temperature Derating Curve

Figure 7