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MFS5600AMBAFES датащи(PDF) 26 Page - NXP Semiconductors |
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MFS5600AMBAFES датащи(HTML) 26 Page - NXP Semiconductors |
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26 / 118 page ![]() NXP Semiconductors FS5600 Automotive buck regulator and controller with voltage monitors and watchdog timer Example: For an inductor L = 4.7 μH and RDCR = 7 mΩ, R1 = 6.7 kΩ and C1 = 100 nF. With OTP_SW2_ILIM = 0b11, the minimum SW2CSP-SW2CSN voltage where a current limit occurs is 150 mV. With 7 mΩ DCR, this is equivalent to a peak current limit of 150 mV / 7 mΩ = 21.4 A. To maintain a proper signal-to-noise ratio, choose an inductor with a DCR of at least 6 mΩ. 12.2.2 Output voltage selection Output voltage of SW2 may be set via OTP using the OTP_SW2_VOLT[5:0] bits. OTP_SW2_VOLT[5:0] = 0b111000 configures the device to use an external resistor divider to set the output voltage. Use the same equation for the external divider as for SW1. OTP_SW2_VOLT[5:0] SW2 voltage setting (V) 000000 1.8 000001 1.9 000010 2 000011 2.1 000100 2.2 000101 2.3 000110 2.4 000111 2.5 001000 2.6 001001 2.7 001010 2.8 001011 2.9 001100 3 001101 3.1 001110 3.2 001111 3.3 010000 3.4 010001 3.5 010010 3.6 010011 3.7 010100 3.8 010101 3.9 010110 4 010111 4.1 011000 4.2 011001 4.3 011010 4.4 Table 22. OTP_SW2_VOLT[5:0] Selection FS5600 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved. Product data sheet Rev. 4 — 29 April 2024 26 / 118 |
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