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MFS5600AMBAFES 数据表(PDF) 9 Page - NXP Semiconductors |
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MFS5600AMBAFES 数据表(HTML) 9 Page - NXP Semiconductors |
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9 / 118 page  NXP Semiconductors FS5600 Automotive buck regulator and controller with voltage monitors and watchdog timer Pin number Pin name Description Absolute maximum voltage rating Connection if not used 1 VDDIO I2C I/O driver supply. Connect to 1.8 V or 3.3 V on the board. Bypass with 0.1 µF capacitor. –0.3 V to 5.5 V Connect to VCC 2 SCL I2C clock line. Pullup to VDDIO on board. –0.3 V to 5.5 V Connect to ground 3 SDA I2C data line. Pullup to VDDIO on board. –0.3 V to 5.5 V Connect to ground 4 GPIO1/VDDOTP General-purpose input/output pin. Used as VDDOTP during development. –0.3 V to 10 V Connect to ground 5 SW2COMP SW2 compensation pin. Connect to external compensation network. –0.3 V to 5.5 V Connect to ground 6 SW2FB SW2 output voltage feedback. Use external or internal resistor divider for SW2 outputs ≤ 5.5 V. Use external resistor divider for SW2 outputs > 5.5 V. –0.3 V to 7.5 V Connect to ground 7 SW2CSN SW2 current sense feedback (-ve). Route differentially with SW2CSP to sense circuitry. –0.3 V to 7.5 V Connect to ground 8 SW2CSP SW2 current sense feedback (+ve). Route differentially with SW2CSN to sense circuitry. –0.3 V to 7.5 V Connect to ground 9 SW2GLS SW2 low side MOSFET gate output. Connect to gate of external low side MOSFET. –0.3 V to 5.5 V Leave floating 10 SW2LX SW2 switching node. High side gate drive return path. Route parallel to SW2GHS trace on the board. –0.3 V to 40 V Leave floating 11 SW2GHS SW2 high side MOSFET gate output. Connect to gate of external high side MOSFET. –0.3 V to (SW2 BOOT + 0.3 V) Leave floating 12 SW2BOOT SW2 bootstrap pin. Connect bootstrap capacitor between SW2BOOT and SW2LX. –0.3 V to VSW2LX + 6 V Leave floating 13 VMON4/GPIO3 (GPO3 for QM version) General-purpose input/output pin. Also selectable as voltage monitoring input via OTP. Only general- purpose output (GPO3) available in QM version. –0.3 V to 5.5 V Connect to ground 14 VMON3/GPIO2 (GPO2 for QM version) General-purpose input/output pin. Also selectable as voltage monitoring input via OTP. Only general- purpose output (GPO2) available in QM version. –0.3 V to 5.5 V Connect to ground 15 VMON2 (NA for QM version) Voltage Monitor 2 input. Not available in QM version. Connect to ground for QM version. –0.3 V to 5.5 V Connect to ground 16 VMON1 (NA for QM version) Voltage Monitor 1 input. Not available in QM version. Connect to ground for QM version. –0.3 V to 10 V Connect to ground 17 SW1BOOT SW1 bootstrap pin. Connect bootstrap capacitor between SW1BOOT and SW1LX. –0.3 V to VSW1LX + 6 V Leave floating 18, 19 SW1IN SW1 input voltage. Bypass with at least 10 µF capacitor for both pins together. –0.3 V to 40 V Connect to VIN 20, 21 SW1LX SW1 switching node. Connect to inductor. –0.3 V to 40 V Leave floating 22 EN2 SW2 enable input pin. –0.3 V to 40 V Connect to ground Table 3. Pin description 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 9 / 118 |
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