V36SE3R315PRFA datasheet(8/13 Pages) DELTA

Part #	V36SE3R315PRFA

Description	Delphi Series V36SE, 1/16th Brick DC/DC Power Modules: 18~75Vin, 3.3Vo, 50W

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Manufacturer	DELTA [Delta Electronics, Inc.]

Direct Link	http://www.deltaww.com

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V36SE3R315_10252013

8

FEATURES DESCRIPTIONS (CON.)

If the remote sense feature is not used to regulate the output

at the point of load, please connect SENSE(+) to Vo(+) and

SENSE(

–) to Vo(–) at the module.

The output voltage can be increased by both the remote

sense and the trim; however, the maximum increase is the

larger of either the remote sense or the trim, not the sum of

both.

When using remote sense and trim, the output voltage

of the module is usually increased, which increases the

power output of the module with the same output

current.

Care should be taken to ensure that the maximum

output power does not exceed the maximum rated

power.

Output Voltage Adjustment (TRIM)

To increase or decrease the output voltage set point,

connect an external resistor between the TRIM pin and

either the SENSE(+) or SENSE(-). The TRIM pin

should be left open if this feature is not used.

Figure 16: Circuit configuration for trim-down (decrease

output voltage)

If the external resistor is connected between the TRIM

and SENSE (-) pins, the output voltage set point

decreases (Fig. 18). The external resistor value

required to obtain a percentage of output voltage

change △% is defined as:























K

down

Rtrim

22

.

10

511

Ex. When Trim-down -20% (3.30V×0.8=2.64V)





























K

down

Rtrim

33

.

15

22

.

10

20

511

Figure 17: Circuit configuration for trim-up (increase output

voltage)

If the external resistor is connected between the TRIM

and SENSE (+) the output voltage set point increases

(Fig. 19). The external resistor value required to obtain

a percentage output voltage change △% is defined

as:

 

















K

up

Rtrim

22

.

10

511

1.24

)

(100

Vo

11

.

5

Ex. When Trim-up +10% (3.3V×1.1=3.63V)

 

















K

up

Rtrim

27

.

88

22

.

10

511

10

24

.

1

)

10

100

(

3

.

3

11

.

5

The output voltage can be increased by both the remote

sense and the trim, however the maximum increase is

the larger of either the remote sense or the trim, not the

sum of both.

When using remote sense and trim, the output voltage

of the module is usually increased, which increases the

power output of the module with the same output

current.

Care should be taken to ensure that the maximum

output power of the module remains at or below the

maximum rated power.

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