RP120Q-11048SRW datasheet(6/15 Pages) RECOM

Part #	RP120Q-11048SRW

Description	4:1 Wide Input Range

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Manufacturer	RECOM [Recom International Power]

Direct Link	http://www.recom-international.com

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6 / 15 page

OUTPUT TRIM

continued on next page

PB-6

REV.: 2/2016

www.recom-power.com

DC/DC Converter

Specifications (measured @ ta= 25°C, nominal input voltage, full load and after warm-up)

RP120Q-RW

Series

RP120Q-xx05SRW

RP120Q-xx12SRW

RP120Q-xx15SRW

RP120Q-xx24SRW

RP120Q-xx48SRW

Trim Down all Vout‘s

Trim up

1

2

3

4

5

6

7

8

9

10

%

Vout =

5.05

5.10

5.15

5.20

5.25

5.30

5.35

5.4

5.45

5.50

Volts

R

1 =

1580

806

536

402

324

247

237

205

187

169

KOhms

Trim up

1

2

3

4

5

6

7

8

9

10

%

Vout =

12.12

12.24

12.36

12.48

12.60

12.72

12.84

12.96

13.08

13.20

Volts

R

1 =

4530

2320

1540

1150

931

787

681

604

536

487

KOhms

Trim up

1

2

3

4

5

6

7

8

9

10

%

Vout =

15.15

15.30

15.45

15.60

15.75

15.90

16.05

16.20

16.35

16.50

Volts

R

1 =

5760

2940

1960

1470

1210

1020

866

768

698

619

KOhms

Trim up

1

2

3

4

5

6

7

8

9

10

%

Vout =

24.24

24.48

24.72

24.96

25.20

25.44

25.68

25.92

26.16

26.40

Volts

R

1 =

9530

4870

3240

2940

2000

1690

1470

1270

1150

1050

KOhms

Trim up

1

2

3

4

5

6

7

8

9

10

%

Vout =

48.48

48.96

49.44

49.92

50.40

50.88

51.36

51.84

52.32

52.80

Volts

R

1 =

19600

9945

6650

5110

4120

3400

3010

2610

2370

2150

KOhms

Trim down

1

2

3

4

5

6

7

8

9

10

%

R

2 =

499

243

162

118

909

75

63.4

53.6

46.4

41.2

KOhms

Trim down

11

12

13

14

15

16

17

18

19

20

%

R

2 =

36.5

32.4

28.7

26.1

23.7

21.5

19.6

18.2

16.5

15.4

KOhms

Trim Calculation

Vout

=

Output Voltage

R

1 =

q511*Vout+5.11DVout*Vout) -(511+10.22DVout)rkΩ

DVout

=

Output Voltage Trim in %

1.225*DVout

DVout

R1

=

trim up resistor

R2

=

trim down resistor

R

2 =

q 511 -10.22rkΩ

DVout

Practical Example:

Trim Up:

Vout = 5V,

DVout = 10% (5.5V)

R

1 =

q511*Vout+5.11DVout*Vout)-(511+10.22DVout)rkΩ=511*5+5.11*10*5 -511+10.22*10 =229.43-61.32=169kΩ

1.225*

DVout

1.225*10

10

Trim down:

Vout = 5V,

DVout = -10% (4.5V)

R

2 =

q511 -10.22rkΩ= 511-10.22= 41.2kΩ

DVout

10

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