MR75-xxSRW Series Output Trim Tables Output Voltage Adjustment A simple external circuit may be used to adjust the converter output. The range of adjustment is ±10%. To adjust the output down, connect a 5%, 3W resistor from the plus sense pin (7) to the VOUT trim pin (6). To adjust the output up, connect a 5%, 3W resistor from the minus sense pin (5) to the VOUT trim pin. For up/ down trimming, connect a 10 k⍀ potentiometer from the plus to the minus sense pins. Connect the wiper arm to the VOUT trim pin. Trim resistor values are listed in the tables below. MR75-xxxS05RW(-H) Trim Down 1 2 3 4 5 % VOUT = VOUT x 0.99 VOUT x 0.98 VOUT x 0.97 VOUT x 0.96 VOUT x 0.95 VDC RTRIM = 45.53 20.61 12.31 8.15 5.66 kΩ 6 7 8 9 10 % VOUT = VOUT x 0.94 VOUT x 0.93 VOUT x 0.92 VOUT x 0.91 VOUT x 0.90 VDC RTRIM = 4.00 2.81 1.92 1.23 0.68 kΩ Trim Up 1 2 3 4 5 % VOUT = VOUT x 1.01 VOUT x 1.02 VOUT x 1.03 VOUT x 1.04 VOUT x 1.05 VDC RTRIM = 36.57 16.58 9.92 6.59 4.59 kΩ Trim UP 6 7 8 9 10 % VOUT = VOUT x 1.06 VOUT x 1.07 VOUT x 1.08 VOUT x 1.09 VOUT x 1.10 VDC RTRIM = 3.25 2.30 1.59 1.03 0.59 kΩ 1 2 3 4 5 % VOUT = VOUT x 0.99 VOUT x 0.98 VOUT x 0.97 VOUT x 0.96 VOUT x 0.95 VDC RTRIM = 394.50 179.74 106.08 68.86 46.39 kΩ 6 7 8 9 10 % VOUT = VOUT x 0.94 VOUT x 0.93 VOUT x 0.92 VOUT x 0.91 VOUT x 0.90 VDC RTRIM = 31.36 20.60 12.51 6.21 1.17 kΩ Trim Down MR75-xxxS12RW(-H) Trim Down Trim Down www.micropowerdirect.com MicroPower Direct We Power Your Success - For Less! 292 Page Street Ste D Stoughton, MA 02072 • TEL: (781) 344-8226 • FAX: (781) 344-8481 • E-Mail: [email protected] www.micropowerdirect.com MR75-xxxS12RW(-H) Trim Up 1 2 3 4 5 % VOUT = VOUT x 1.01 VOUT x 1.02 VOUT x 1.03 VOUT x 1.04 VOUT x 1.05 VDC RTRIM = 368.92 161.92 94.97 61.86 42.12 kΩ Trim UP 6 7 8 9 10 % VOUT = VOUT x 1.06 VOUT x 1.07 VOUT x 1.08 VOUT x 1.09 VOUT x 1.10 VDC RTRIM = 29.00 19.66 12.66 7.23 2.89 kΩ 1 2 3 4 5 % VOUT = VOUT x 0.99 VOUT x 0.98 VOUT x 0.97 VOUT x 0.96 VOUT x 0.95 VDC RTRIM = 572.67 248.63 145.60 94.97 64.87 kΩ 6 7 8 9 10 % VOUT = VOUT x 0.94 VOUT x 0.93 VOUT x 0.92 VOUT x 0.91 VOUT x 0.90 VDC RTRIM = 44.92 30.72 20.10 11.86 5.28 kΩ Trim Up 1 2 3 4 5 % VOUT = VOUT x 1.01 VOUT x 1.02 VOUT x 1.03 VOUT x 1.04 VOUT x 1.05 VDC RTRIM = 392.98 182.12 108.73 71.43 48.85 kΩ Trim UP 6 7 8 9 10 % VOUT = VOUT x 1.06 VOUT x 1.07 VOUT x 1.08 VOUT x 1.09 VOUT x 1.10 VDC RTRIM = 33.71 22.86 14.69 8.33 3.23 kΩ 1 2 3 4 5 % VOUT = VOUT x 0.99 VOUT x 0.98 VOUT x 0.97 VOUT x 0.96 VOUT x 0.95 VDC RTRIM = 512.00 229.60 138.30 90.30 60.70 kΩ 6 7 8 9 10 % VOUT = VOUT x 0.94 VOUT x 0.93 VOUT x 0.92 VOUT x 0.91 VOUT x 0.90 VDC RTRIM = 42.40 29.04 18.67 11.09 4.78 kΩ Trim Up 1 2 3 4 5 % VOUT = VOUT x 1.01 VOUT x 1.02 VOUT x 1.03 VOUT x 1.04 VOUT x 1.05 VDC RTRIM = 574.00 256.90 149.60 96.50 64.70 kΩ Trim UP 6 7 8 9 10 % VOUT = VOUT x 1.06 VOUT x 1.07 VOUT x 1.08 VOUT x 1.09 VOUT x 1.10 VDC RTRIM = 43.28 27.68 16.72 7.68 1.11 kΩ MR75-xxxS15RW(-H) Trim Down Trim Down MR75-xxxS24RW(-H) Trim Down Trim Down MicroPower Direct We Power Your Success - For Less! 292 Page Street Ste D Stoughton, MA 02072 • TEL: (781) 344-8226 • FAX: (781) 344-8481 • E-Mail: [email protected]