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Setup Two

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2020 Microchip Technology Inc.

DS50002932A-page 21

9. Check on the oscilloscope screen the V_GATE voltage, as it is presented in the

. Set the oscilloscope accordingly.

FIGURE 4-3:

MCP1012 V_GATE Voltage, t

OFF

Interval.

After V_GATE signal is inhibited, t

OFF

has a constant interval of 21.0 µs.

10. Disconnect the DC power supplies.

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Содержание MCP1012

Страница 1: ...2020 Microchip Technology Inc DS50002932A MCP1012 1W Demonstration Board User s Guide...

Страница 2: ...may have a right to sue for relief under that Act Trademarks The Microchip name and logo the Microchip logo Adaptec AnyRate AVR AVR logo AVR Freaks BesTime BitCloud chipKIT chipKIT logo CryptoMemory...

Страница 3: ...ntroduction 9 1 2 MCP1012 Short Overview 1 9 1 3 MCP1012 1W Demonstration Board Description 10 1 4 Contents of the MCP1012 1W Demonstration Board Kit 11 Chapter 2 Installation and Operation 2 1 Gettin...

Страница 4: ...p Five 7 1 Setup 5 31 Introduction 31 Steps 31 Appendix A Schematic and Layouts A 1 Introduction 33 A 2 Board Schematic 34 A 3 Board Top Silk 35 A 4 Board Top Copper and Silk 35 A 5 Board Top Copper 3...

Страница 5: ...R21 R22 or R23 resistors is con nected setup 1A as well as a description of the functioning of the MCP1012 in Start Up mode when it is supplied by the secondary side of the transformer and a load is a...

Страница 6: ...ormal Run mode when an external command is applied at PULSE pin and the C S pin voltage does not reach the COMP1 Reference 252 mV setup 4A as well as a description of the functioning of the MCP1012 in...

Страница 7: ...dialog button Click OK A tab Click the Power tab N Rnnnn A number in verilog format where N is the total number of digits R is the radix and n is a digit 4 b0010 2 hF1 Text in angle brackets A key on...

Страница 8: ...t documents latest software releases and archived software General Technical Support Frequently Asked Questions FAQs technical support requests online discussion groups Microchip consultant program me...

Страница 9: ...age Lockout UVLO and Overvoltage Lockout OVLO Protections Sleep and Wake Up Commands Robust Gate Driver able to drive 2 2 nF Load at 65 kHz Overtemperature Protection Thermal Shutdown Package 7 Lead S...

Страница 10: ...1W Demonstration Board is used to evaluate and demonstrate Microchip Technology s MCP1012 product This board demonstrates the capabilities of the MCP1012 in a Flyback converter application supplied fr...

Страница 11: ...2932A page 11 1 4 CONTENTS OF THE MCP1012 1W DEMONSTRATION BOARD KIT The MCP1012 1W Demonstration Board kit includes MCP1012 1W Demonstration Board DT100118 Isolated Jumper JP1 Mechanical hardware jum...

Страница 12: ...MCP1012 1W Demonstration Board User s Guide DS50002932A page 12 2020 Microchip Technology Inc NOTES...

Страница 13: ...12 1W Demonstration Board on a non conductive surface when connected to the DC power supplies Do not come into contact with the demonstration board while it is connected to the DC HV power supply Disc...

Страница 14: ...MCP1012 1W Demonstration Board User s Guide DS50002932A page 14 2020 Microchip Technology Inc NOTES...

Страница 15: ...1 and PIN2 2 Connect the voltmeter at the TB3 connector with the positive test probe at the upper terminal 3 If available connect two oscilloscope probes at TP1 VDD Input and TP6 GATE output Connect t...

Страница 16: ...cording to Table 3 2 Note 1 JP1 and J3 connections eliminate the galvanic isolation between the Primary Side and the Secondary Side of the transformer Specific safety procedures must be taken into acc...

Страница 17: ...inal must be connected to the bottommost terminal of the TB1 PCB connector the middle terminal of the TB1 PCB connector is not connected 5 Read the voltmeter and check if the output voltage of the boa...

Страница 18: ...MCP1012 1W Demonstration Board User s Guide DS50002932A page 18 2020 Microchip Technology Inc NOTES...

Страница 19: ...t TP6 GATE output and TP8 C S input Connect the ground probes on the primary side at the TP14 or TP15 Test Points 4 Connect the DC power supply 15V at the TB2 connector the positive terminal must be c...

Страница 20: ...g LEB period the spikes on C S pin are ignored After LEB once the C S voltage reaches the threshold of 125 mV the GATE signal is inhibited 8 Check on the oscilloscope screen the V_GATE voltage as it i...

Страница 21: ...the oscilloscope screen the V_GATE voltage as it is presented in the Figure 4 3 Set the oscilloscope accordingly FIGURE 4 3 MCP1012 V_GATE Voltage tOFF Interval After V_GATE signal is inhibited tOFF...

Страница 22: ...MCP1012 1W Demonstration Board User s Guide DS50002932A page 22 2020 Microchip Technology Inc NOTES...

Страница 23: ...t Points 4 Connect the DC power supply 15V at the TB2 connector the positive terminal must be connected at the upper terminal of the TB2 PCB connector the negative terminal must be connected to the bo...

Страница 24: ...cope screen the V_GATE voltage and the PULSE signal as they are presented in Figure 5 1 and Figure 5 2 FIGURE 5 1 MCP1012 Sleep Command Five pulses applied on PULSE pin negative edge at 500 kHz activa...

Страница 25: ...3 MCP1012 Wake Up Command The Wake Up command consists of a single valid PWM Pulse FIGURE 5 4 MCP1012 Wake Up Command Figure 5 3 Detail If the external PWM signal ceases for a period greater than 260...

Страница 26: ...MCP1012 1W Demonstration Board User s Guide DS50002932A page 26 2020 Microchip Technology Inc NOTES...

Страница 27: ...W resistor 3 Connect at the jumper J6 the output of the signal generator with the next setup square waveform minimum voltage 0V maximum voltage 5 0V frequency 20 kHz duty cycle 75 4 Connect three osci...

Страница 28: ...ctioning of the MCP1012 in Normal Run mode when an external command is applied at PULSE pin and the C S pin voltage reaches the COMP1 Reference 252 mV STEPS 1 Connect disconnect the jumpers and the sw...

Страница 29: ...connector the negative terminal must be connected to the bottommost terminal of the TB1 PCB connector the middle terminal of the TB1 PCB connector is not connected 7 Activate the output of the signal...

Страница 30: ...MCP1012 1W Demonstration Board User s Guide DS50002932A page 30 2020 Microchip Technology Inc NOTES...

Страница 31: ...nnect two oscilloscope probes at TP6 GATE output and TP12 Connect the ground probes on the primary side at the TP14 or TP15 Test Points 4 Connect a DC power supply 15V at the TB2 connector the positiv...

Страница 32: ...ATE voltage during the short circuit condition as it is presented in Figure 7 1 FIGURE 7 1 MCP1012 V_GATE Voltage during a Short Circuit Condition 8 Disconnect the DC power supplies 9 Disconnect the j...

Страница 33: ...33 Appendix A Schematic and Layouts A 1 INTRODUCTION This appendix contains the following schematic and layouts for the MCP1012 1W Demonstration Board Board Schematic Board Top Silk Board Top Copper a...

Страница 34: ...ERMINAL 1x2 TB4 External 5V Supply 330R 1206 5 R24 DC Input Voltage 1 2 TERMINAL 1x2 TB3 1 2 3 TERMINAL 1x3 TB1 NC 3 NC 4 2 GND 5 6 NC 7 VCC 8 NC 1 HCPL 2202 U4 1 5k 0805 1 R26 0R 1206 DNP R4B 0R 1206...

Страница 35: ...Schematic and Layouts 2020 Microchip Technology Inc DS50002932A page 35 A 3 BOARD TOP SILK A 4 BOARD TOP COPPER AND SILK...

Страница 36: ...MCP1012 1W Demonstration Board User s Guide DS50002932A page 36 2020 Microchip Technology Inc A 5 BOARD TOP COPPER A 6 BOARD BOTTOM COPPER...

Страница 37: ...Schematic and Layouts 2020 Microchip Technology Inc DS50002932A page 37 A 7 BOARD BOTTOM COPPER AND SILK A 8 BOARD BOTTOM SILK...

Страница 38: ...MCP1012 1W Demonstration Board User s Guide DS50002932A page 38 2020 Microchip Technology Inc NOTES...

Страница 39: ...ta Electronics North America Inc GRM21BR71C225KA12L 1 C9 Capacitor ceramic 0 47 F50V 10 X7R surface mount 0805 Murata Electronics North America Inc GRM21BR71H474KA88L 1 C10 Capacitor ceramic 10000 pF...

Страница 40: ...header 2 54 male 1x2 Gold 5 84 MH TH vertical Amphenol Commercial 77311 118 02LF 1 JP1 Mechanical hardware jumper 6 35 mm 1x2 D3087 98 Harwin Plc D3087 98 1 L1 Inductor 100 H 0 79A 20 surface mount L...

Страница 41: ...KF 100k 5 1 8W surface mount 0805 Panasonic ERJ 6GEYJ104V 1 R20 Resistor TKF 51R 5 3 4W surface mount 2010 Panasonic ERJ 12ZYJ510U 1 R21 Resistor TKF 68R 5 3 4W surface mount 2010 Panasonic ERJ 12ZYJ6...

Страница 42: ...U5 IC Power TLV431BSN1T1G Shunt Voltage Reference SOT23 3 ON Semiconductor TLV431BSN1T1G Note 1 The components listed in this Bill of Materials are representative of the PCB assembly The released BOM...

Страница 43: ...00 China Xian Tel 86 29 8833 7252 China Xiamen Tel 86 592 2388138 China Zhuhai Tel 86 756 3210040 ASIA PACIFIC India Bangalore Tel 91 80 3090 4444 India New Delhi Tel 91 11 4160 8631 India Pune Tel 91...

Страница 44: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Microchip DT100118...

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