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LB11851M Arkusz danych(PDF) 4 Page - Sanyo Semicon Device |
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LB11851M Arkusz danych(HTML) 4 Page - Sanyo Semicon Device |
4 / 6 page LB11851M No.A0673-4/6 1. Power supply (VCC and VM) and ground The wiring is separated into the control IC side (VCC line) and the motor output side (VM line) by the diode DI, which protects the IC from destruction on reverse connection. The application circuit uses 1 µF capacitors to prevent line oscillation when kickback occurs. Similarly, 1 µF capacitors are also used on the VCC line for power supply line stabilization. 2. PWMIN The LB11851M accepts an open-drain output signal from the microcontroller with this pin and controls the on/off states of the PMOS transistor (OUT1P and OUT2P) outputs accordingly. A constant-current bias is provided from 5VREG internally to the IC. 3. FGIN The LB11851M accepts a CMOS output from the microcontroller with this pin and determines the drive phase output (OUT1P, OUT2P, OUT1N, or OUT2N). 4. 5VREG This is the power supply for the microcontroller, Hall effect sensors, and other circuits. A capacitor with a value of 1 µF is used for output stabilization. This pin has an output current capacity of 20mA. 5. SENSE A sensing resistor is used for current detection. If the SENSE pin voltage exceeds 0.2V, the PMOS transistors are turned off and only low side regeneration is performed. Block Diagram GND OUT2P OUT2N OUT1N 5VREG PWMIN VCC FGIN OUT1P 100 Ω 300 Ω 20k Ω 20k Ω 100 Ω 300 Ω 20k Ω 20k Ω SENSE Controller 5VREG 5VREG 5VREG |
Podobny numer części - LB11851M |
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Podobny opis - LB11851M |
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