AXH016A0X3-SR datasheet(15/21 Pages) LINEAGEPOWER

Part #	AXH016A0X3-SR

Description	3.0 - 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

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Manufacturer	LINEAGEPOWER [Lineage Power Corporation]

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Data Sheet

August 12, 2008

Austin SuperlynxTM SMT Non-isolated Power Modules:

3.0 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 16A output current

LINEAGE POWER

15

Thermal Considerations

Power modules operate in a variety of thermal

environments; however, sufficient cooling should always

be provided to help ensure reliable operation.

Considerations include ambient temperature, airflow,

module power dissipation, and the need for increased

reliability. A reduction in the operating temperature of the

module will result in an increase in reliability. The thermal

data presented here is based on physical measurements

taken in a wind tunnel. The test set-up is shown in Figure

34. Note that the airflow is parallel to the short axis of the

module as shown in figure 33. The derating data applies

to airflow in either direction of the module’s short axis.

Air Flow

T

ref

Top View

Bottom View

Figure 33. Tref Temperature measurement location.

The thermal reference point, Tref used in the

specifications is shown in Figure 33. For reliable

operation this temperature should not exceed 115

oC.

The output power of the module should not exceed the

rated power of the module (Vo,set x Io,max).

Please refer to the Application Note “Thermal

Characterization Process For Open-Frame Board-

Mounted Power Modules” for a detailed discussion of

thermal aspects including maximum device temperatures.

Figure 34. Thermal Test Set-up.

Heat Transfer via Convection

Increased airflow over the module enhances the heat

transfer via convection. Thermal derating curves showing

the maximum output current that can be delivered at

different local ambient temperatures (TA) for airflow

conditions ranging from natural convection and up to

2m/s (400 ft./min) are shown in the Characteristics

Curves section.

Layout Considerations

Copper paths must not be routed beneath the power

module. For additional layout guide-lines, refer to the

FLTR100V10 application note.

Air

flow

x

Power Module

Wind Tunnel

PWBs

5.97_

(0.235)

76.2_

(3.0)

Probe Location

for measuring

airflow and

ambient

temperature

25.4_

(1.0)

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