PTH12010LAH datasheet(9/27 Pages) TI2

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=10k

SET

0.8V

-R

-V

min

(1)

PTH12010W, PTH12010L

SLTS205G – JUNE 2003 – REVISED FEBRUARY 2007

Use Equation 1 to calculate the adjust resistor value. See Table 2 for the parameters, R

S and Vmin.

Table 2. Adjust Formula Parameters

PARAMETER

PTH12010W

PTH12010L

Vmin

1.2 V

0.8 V

Vmax

5.5 V

1.8 V

1.82 k

Ω

7.87 k

Ω

Table 3. Output Voltage Set-Point Resistor Values

PTH12010W

PTH12010L

VO(V)

RSET (kΩ)

VO(V)

RSET (kΩ)

1.2

Open

2.7

3.51

0.8

Open

1.225

318

2.75

3.34

0.825

312

1.25

158

2.8

3.18

0.85

152

1.275

105

2.85

3.03

0.875

98.8

1.3

78.2

2.9

2.89

0.9

72.1

1.325

62.2

2.95

2.75

0.925

56.1

1.35

51.5

2.62

0.95

45.5

1.375

43.9

3.05

2.5

0.975

37.8

1.4

38.2

3.1

2.39

32.1

1.425

33.7

3.15

2.28

1.025

27.7

1.45

30.2

3.2

2.18

1.05

24.1

1.475

27.3

3.25

2.08

1.075

21.2

1.5

24.8

3.3

1.99

1.1

18.8

1.55

3.35

1.90

1.125

16.7

1.6

18.2

3.4

1.82

1.15

1.65

3.5

1.66

1.175

13.5

1.7

14.2

3.6

1.51

1.2

12.1

1.75

12.7

3.7

1.38

1.225

1.8

11.5

3.8

1.26

1.25

9.91

1.85

10.5

3.9

1.14

1.275

8.97

1.9

9.61

1.04

1.3

8.13

1.95

8.85

4.1

0.939

1.325

7.37

8.18

4.2

0.847

1.35

6.68

2.05

7.59

4.3

0.761

1.375

6.04

2.1

7.07

4.4

0.680

1.4

5.46

2.15

6.6

4.5

0.604

1.425

4.93

2.2

6.18

4.6

0.533

1.45

4.44

2.25

5.80

4.7

0.466

1.475

3.98

2.3

5.45

4.8

0.402

1.5

3.56

2.35

5.14

4.9

0.342

1.55

2.8

2.4

4.85

0.285

1.6

2.13

2.45

4.58

5.1

0.231

1.65

1.54

2.5

4.33

5.2

0.180

1.7

1.02

2.55

4.11

5.3

0.131

1.75

0.551

2.6

3.89

5.4

0.085

1.8

0.130

2.65

3.70

5.5

0.041

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