Rev 88 | Rev 100 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 88 | Rev 97 | ||
---|---|---|---|
Line 29... | Line 29... | ||
29 | R1 = 240 |
29 | R1 = 240 |
30 | R2 = 330 |
30 | R2 = 330 |
31 | 31 | ||
32 | VOUT = VREF (1 + R2 / R1) |
32 | VOUT = VREF (1 + R2 / R1) |
33 | 3.000 = 1.25 * (1 + 280 / 200) |
33 | 3.000 = 1.25 * (1 + 280 / 200) |
34 | 2.968 = 1.25 * (1 + 330 / 240) |
34 | 2.969 = 1.25 * (1 + 330 / 240) |
35 | 3.125 = 1.25 * (1 + 330 / 220) |
35 | 3.125 = 1.25 * (1 + 330 / 220) |
36 | 36 | ||
37 | ( (VOUT / VREF) -1 ) = (R2 / R1) |
37 | ( (VOUT / VREF) -1 ) = (R2 / R1) |
38 | 38 | ||
39 | I = U / R |
39 | I = U / R |
Line 50... | Line 50... | ||
50 | R1 = 240 |
50 | R1 = 240 |
51 | R2 = 390 |
51 | R2 = 390 |
52 | 52 | ||
53 | VOUT = VREF (1 + R2 / R1) |
53 | VOUT = VREF (1 + R2 / R1) |
54 | 3.281 = 1.25 * (1 + 390 / 240) |
54 | 3.281 = 1.25 * (1 + 390 / 240) |
- | 55 | ||
- | 56 | == +3.0V Limmits == |
|
- | 57 | ||
- | 58 | VOUT = VREF (1 + R2 / R1) |
|
- | 59 | R1 = 240 |
|
- | 60 | R2 = 330 |
|
- | 61 | R1 = 99% = 237.6 |
|
- | 62 | R1 = 101% = 242.4 |
|
- | 63 | R2 = 99% = 326.7 |
|
- | 64 | R2 = 101% = 333.3 |
|
- | 65 | ||
- | 66 | MIN(2.940) = 1.238 * (1 + 326.7 / 237.6) |
|
- | 67 | TYP(2.969) = 1.250 * (1 + 330.0 / 240.0) |
|
- | 68 | MAX(3.004) = 1.262 * (1 + 333.3 / 242.4) |
|
- | 69 | ||
- | 70 | == +3.3V Limmits == |
|
- | 71 | ||
- | 72 | VOUT = VREF (1 + R2 / R1) |
|
- | 73 | R1 = 240 |
|
- | 74 | R2 = 390 |
|
- | 75 | R1 = 99% = 237.6 |
|
- | 76 | R1 = 101% = 242.4 |
|
- | 77 | R2 = 99% = 386.1 |
|
- | 78 | R2 = 101% = 393.9 |
|
- | 79 | MIN(3.250) = 1.238 * (1 + 386.1 / 237.6) |
|
- | 80 | TYP(3.281) = 1.238 * (1 + 386.1 / 237.6) |
|
- | 81 | MAX(3.313) = 1.262 * (1 + 393.9 / 242.4) |