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MP8869WGL Datasheet(PDF) 30 Page - Monolithic Power Systems |
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MP8869WGL Datasheet(HTML) 30 Page - Monolithic Power Systems |
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30 / 41 page  MP8869W – 3V - 18V, 12A, SYNCHRONOUS STEP-DOWN CONVERTER MP8869W Rev. 1.02 www.MonolithicPower.com 30 1/18/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2018 MPS. All Rights Reserved. 4) Reg03 Output Current Register 03 is an output current-indicating register. After the part starts up, the DC output current information can be read through the I2C communication. When the inductor current is in DCM, the output current sense is not very accurate. The Mode bit can be set to 1 (PWM mode) for good current sensing accuracy at light load. When the inductor current enters CCM, the output current sense accuracy is excellent (typical accuracy is 5% when the output current is higher than 2A). Table 4 shows the output current chart from 0A to 12.75A. NAME BITS DEFAULT DESCRIPTION Output current D[7:0] 0000 0000 Output current monitor bits. Table 4 shows the output current monitor chart. Table 4: Output Current Chart D[7:0] IOUT(A) D[7:0] IOUT(A) D[7:0] IOUT(A) D[7:0] IOUT(A) D[7:0] IOUT(A) D[7:0] IOUT(A) 0000 0000 0 0010 1011 2.15 0101 0110 4.3 1000 0001 6.45 1010 1100 8.6 1101 0111 10.75 0000 0001 0.05 0010 1100 2.2 0101 0111 4.35 1000 0010 6.5 1010 1101 8.65 1101 1000 10.8 0000 0010 0.1 0010 1101 2.25 0101 1000 4.4 1000 0011 6.55 1010 1110 8.7 1101 1001 10.85 0000 0011 0.15 0010 1110 2.3 0101 1001 4.45 1000 0100 6.6 1010 1111 8.75 1101 1010 10.9 0000 0100 0.2 0010 1111 2.35 0101 1010 4.5 1000 0101 6.65 1011 0000 8.8 1101 1011 10.95 0000 0101 0.25 0011 0000 2.4 0101 1011 4.55 1000 0110 6.7 1011 0001 8.85 1101 1100 11 0000 0110 0.3 0011 0001 2.45 0101 1100 4.6 1000 0111 6.75 1011 0010 8.9 1101 1101 11.05 0000 0111 0.35 0011 0010 2.5 0101 1101 4.65 1000 1000 6.8 1011 0011 8.95 1101 1110 11.1 0000 1000 0.4 0011 0011 2.55 0101 1110 4.7 1000 1001 6.85 1011 0100 9 1101 1111 11.15 0000 1001 0.45 0011 0100 2.6 0101 1111 4.75 1000 1010 6.9 1011 0101 9.05 1110 0000 11.2 0000 1010 0.5 0011 0101 2.65 0110 0000 4.8 1000 1011 6.95 1011 0110 9.1 1110 0001 11.25 0000 1011 0.55 0011 0110 2.7 0110 0001 4.85 1000 1100 7 1011 0111 9.15 1110 0010 11.3 0000 1100 0.6 0011 0111 2.75 0110 0010 4.9 1000 1101 7.05 1011 1000 9.2 1110 0011 11.35 0000 1101 0.65 0011 1000 2.8 0110 0011 4.95 1000 1110 7.1 1011 1001 9.25 1110 0100 11.4 0000 1110 0.7 0011 1001 2.85 0110 0100 5 1000 1111 7.15 1011 1010 9.3 1110 0101 11.45 0000 1111 0.75 0011 1010 2.9 0110 0101 5.05 1001 0000 7.2 1011 1011 9.35 1110 0110 11.5 0001 0000 0.8 0011 1011 2.95 0110 0110 5.1 1001 0001 7.25 1011 1100 9.4 1110 0111 11.55 0001 0001 0.85 0011 1100 3 0110 0111 5.15 1001 0010 7.3 1011 1101 9.45 1110 1000 11.6 0001 0010 0.9 0011 1101 3.05 0110 1000 5.2 1001 0011 7.35 1011 1110 9.5 1110 1001 11.65 0001 0011 0.95 0011 1110 3.1 0110 1001 5.25 1001 0100 7.4 1011 1111 9.55 1110 1010 11.7 0001 0100 1 0011 1111 3.15 0110 1010 5.3 1001 0101 7.45 1100 0000 9.6 1110 1011 11.75 0001 0101 1.05 0100 0000 3.2 0110 1011 5.35 1001 0110 7.5 1100 0001 9.65 1110 1100 11.8 0001 0110 1.1 0100 0001 3.25 0110 1100 5.4 1001 0111 7.55 1100 0010 9.7 1110 1101 11.85 0001 0111 1.15 0100 0010 3.3 0110 1101 5.45 1001 1000 7.6 1100 0011 9.75 1110 1110 11.9 0001 1000 1.2 0100 0011 3.35 0110 1110 5.5 1001 1001 7.65 1100 0100 9.8 1110 1111 11.95 0001 1001 1.25 0100 0100 3.4 0110 1111 5.55 1001 1010 7.7 1100 0101 9.85 1111 0000 12 0001 1010 1.3 0100 0101 3.45 0111 0000 5.6 1001 1011 7.75 1100 0110 9.9 1111 0001 12.05 0001 1011 1.35 0100 0110 3.5 0111 0001 5.65 1001 1100 7.8 1100 0111 9.95 1111 0010 12.1 0001 1100 1.4 0100 0111 3.55 0111 0010 5.7 1001 1101 7.85 1100 1000 10 1111 0011 12.15 0001 1101 1.45 0100 1000 3.6 0111 0011 5.75 1001 1110 7.9 1100 1001 10.05 1111 0100 12.2 0001 1110 1.5 0100 1001 3.65 0111 0100 5.8 1001 1111 7.95 1100 1010 10.1 1111 0101 12.25 0001 1111 1.55 0100 1010 3.7 0111 0101 5.85 1010 0000 8 1100 1011 10.15 1111 0110 12.3 0010 0000 1.6 0100 1011 3.75 0111 0110 5.9 1010 0001 8.05 1100 1100 10.2 1111 0111 12.35 0010 0001 1.65 0100 1100 3.8 0111 0111 5.95 1010 0010 8.1 1100 1101 10.25 1111 1000 12.4 0010 0010 1.7 0100 1101 3.85 0111 1000 6 1010 0011 8.15 1100 1110 10.3 1111 1001 12.45 0010 0011 1.75 0100 1110 3.9 0111 1001 6.05 1010 0100 8.2 1100 1111 10.35 1111 1010 12.5 0010 0100 1.8 0100 1111 3.95 0111 1010 6.1 1010 0101 8.25 1101 0000 10.4 1111 1011 12.55 0010 0101 1.85 0101 0000 4 0111 1011 6.15 1010 0110 8.3 1101 0001 10.45 1111 1100 12.6 0010 0110 1.9 0101 0001 4.05 0111 1100 6.2 1010 0111 8.35 1101 0010 10.5 1111 1101 12.65 0010 0111 1.95 0101 0010 4.1 0111 1101 6.25 1010 1000 8.4 1101 0011 10.55 1111 1110 12.7 0010 1000 2 0101 0011 4.15 0111 1110 6.3 1010 1001 8.45 1101 0100 10.6 1111 1111 12.75 0010 1001 2.05 0101 0100 4.2 0111 1111 6.35 1010 1010 8.5 1101 0101 10.65 0010 1010 2.1 0101 0101 4.25 1000 0000 6.4 1010 1011 8.55 1101 0110 10.7 |
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