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MFS5600AMBAFES 数据表(PDF) 20 Page - NXP Semiconductors |
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MFS5600AMBAFES 数据表(HTML) 20 Page - NXP Semiconductors |
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20 / 118 page ![]() NXP Semiconductors FS5600 Automotive buck regulator and controller with voltage monitors and watchdog timer OTP_SW1_PFM_TON[1:0] SW1 PFM on-time (ns) 01 320 10 640 11 800 Table 13. OTP_SW1_PFM_TON[1:0] selection...continued 11.3.4 Soft-start The startup of SW1 is internally controlled to eliminate overshoot and control the inrush current. The soft-start time is programmable via OTP using the OTP_SW1_SS[1:0] bits. See Table 8 for values. 11.3.5 Current limit protection Cycle-by-cycle current limit is utilized to limit the total permissible output current. Output voltage returns to regulation when the overcurrent is removed. The current limit value is programmable to four different values via OTP using the OTP_SW1_ILIM_SEL[1:0] bits. See Table 8 for values. 11.3.6 Compensation selection OTP_SW1_SLOPECOMP[1:0], OTP_SW1_PWM_R_COMP[2:0], and OTP_SW1_GM_COMP[1:0] select the loop parameters for SW1. See Table 14 for recommended values for different operating conditions. Use interpolation for values between the ones shown in Table 14. Switching frequency Output voltage Output capacitance OTP_SW1_ SLOPECOMP[1:0] OTP_SW1_PWM_ R_COMP[2:0] OTP_SW1_GM_ COMP[1:0] 450 kHz 3.3 V 2 x 22 μF 10 000 10 450 kHz 3.3 V 5 x 22 μF 10 000 10 2.2 MHz 3.3 V 2 x 22 μF 10 000 10 2.2 MHz 3.3 V 5 x 22 μF 10 010 10 450 kHz 4.0 V 2 x 22 μF 10 000 10 450 kHz 4.0 V 5 x 22 μF 10 000 10 2.2 MHz 4.0 V 2 x 22 μF 10 000 10 2.2 MHz 4.0 V 5 x 22 μF 10 010 10 450 kHz 5.0 V 2 x 22 μF 10 000 10 450 kHz 5.0 V 5 x 22 μF 10 000 10 2.2 MHz 5.0 V 2 x 22 μF 10 010 10 2.2 MHz 5.0 V 5 x 22 μF 10 010 10 450 kHz 7.2 V 2 x 22 μF 10 000 10 450 kHz 7.2 V 5 x 22 μF 10 000 10 2.2 MHz 7.2 V 2 x 22 μF 10 010 10 2.2 MHz 7.2 V 5 x 22 μF 10 100 10 Table 14. SW1 compensation 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 20 / 118 |
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