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MCP8025 Datasheet(PDF) 21 Page - Microchip Technology |
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MCP8025 Datasheet(HTML) 21 Page - Microchip Technology |
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21 / 64 page  2016 Microchip Technology Inc. DS20005339B-page 21 MCP8025/6 TABLE 3-2: MCP8026 – PIN FUNCTION TABLE QFN TQFP Symbol I/O Description 2 1 PWM1L I Digital input, phase A low-side control, 47 k pull down 3 2 PWM1H I Digital input, phase A high-side control, 47 k pull down 4 3 CE I Digital input, device enable, 47 k pull down — 4 LV_OUT2 O Level Translator 2 logic level translated output, open-drain — 5 HV_IN2 I Level Translator 2 high-voltage input, 30 k configurable pull up 5 6 HV_IN1 I Level Translator 1 high-voltage input, 30 k configurable pull up — 7 PGND Power Power 0V reference 6 8 LV_OUT1 O Level Translator 1 logic level translated output, open-drain 7 9 I_OUT3 O Motor phase current sense amplifier 3 output 8 10 ISENSE3- I Motor phase current sense amplifier 3 inverting input 9 11 ISENSE3+ I Motor phase current sense amplifier 3 non-inverting input 10 12 I_OUT2 O Motor phase current sense amplifier 2 output 11 13 ISENSE2- I Motor phase current sense amplifier 2 inverting input 12 14 ISENSE2+ I Motor phase current sense amplifier 2 non-inverting input 13 15 ILIMIT_OUT O Current limit comparator, MOSFET driver fault output, open-drain 14 16 I_OUT1 O Motor current sense amplifier 1 output 15 17 ISENSE1- I Motor current sense amplifier 1 inverting input 16 18 ISENSE1+ I Motor current sense amplifier 1 non-inverting input 17 19,20 PGND Power Power 0V reference 18 21 LSA O Phase A low-side N-Channel MOSFET driver, active high 19 22 LSB O Phase B low-side N-Channel MOSFET driver, active high 20 23 LSC O Phase C low-side N-Channel MOSFET driver, active high — 24 PGND Power Power 0V reference 21 25 HSC O Phase C high-side N-Channel MOSFET driver, active high 22 26 HSB O Phase B high-side N-Channel MOSFET driver, active high 23 27 HSA O Phase A high-side N-Channel MOSFET driver, active high 24 28 PHC I/O Phase C high-side MOSFET driver reference, Back EMF sense input 25 29 PHB I/O Phase B high-side MOSFET driver reference, Back EMF sense input 26 30 PHA I/O Phase A high-side MOSFET driver reference, Back EMF sense input 27 31 VBC Power Phase C high-side MOSFET driver bias 28 32 VBB Power Phase B high-side MOSFET driver bias 29 33 VBA Power Phase A high-side MOSFET driver bias 30 34 +12V Power Analog circuitry and low-side gate drive bias — 35,36 PGND Power Power 0V reference 31 37 LX Power Buck regulator switch node, external inductor connection 32 38, 39 VDD Power Input supply 33 40 FB I Buck regulator feedback node 34 41 +5V Power Internal circuitry bias 35 42 CAP2 Power Charge pump flying capacitor input 36 43 CAP1 Power Charge pump flying capacitor input 37 44 DE2 O Voltage and temperature supervisor output, open-drain 38 45 PWM3L I Digital input, phase C low-side control, 47 k pull down 39 46 PWM3H I Digital input, phase C high-side control, 47 k pull down 40 47 PWM2L I Digital input, phase B low-side control, 47 k pull down 1 48 PWM2H I Digital input, phase B high-side control, 47 k pull down EP EP PGND Power Exposed Pad. Connect to Power 0V reference. |
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