SI9979 Vishay Siliconix, SI9979 Datasheet
SI9979
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SI9979 Summary of contents
Page 1
... Integral High-Side Drive for all N-Channel MOSFET Bridges é PWM Input DESCRIPTION The Si9979 is a monolithic brushless dc motor controller with integral high-side drive circuitry. The Si9979 is configured to allow either 60 or 120 commutation sensor spacing. The internal low-voltage regulator allows operation over a wide input voltage range, 20- to 40-V dc ...
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... Si9979 Vishay Siliconix ABSOLUTE MAXIMUM RATINGS Voltage on Pin Voltage on Pins 1-4, 10 .-0 Voltage on Pins 5 -0 5.5 V Voltage on Pins 26, 28, 30, 32, 34 Voltage on Pins 27, 31 RECOMMENDED OPERATING RANGE + SPECIFICATIONS Parameter Power Supply Voltage Range Logic Voltage Supply Current ...
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... Don’t care Si9979 Vishay Siliconix Limits - Min Typ Max 12 100 110 85 100 125 100 120 Outputs ...
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... These inputs have internal pull up resistors tied to V eliminates the need for external pull up resistors. Pin 4: 60/120 The 60/120 input allows the use of the Si9979 with either 120 commutation sensor spacing. An internal pull up resistor, which is tied to V sets the default condition to 60 ...
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... This pin is the positive supply of the high-side circuitry. The bootstrap capacitor for Phase A is connected between this pin and SA. Pin 42: V+ The supply voltage for the Si9979 is connected between this pin and ground. The internal logic and high-side supply voltages are derived from V+. Pin 43: V ...
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... Si9979 Vishay Siliconix APPLICATIONS FIGURE 1. Three-Phase Brushless DC Motor Controller S-60752-Rev. D, 05-Apr-99 6 FIGURE 2. Single H-Bridge Controller FaxBack 408-970-5600, request 70012 www.siliconix.com ...
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... FaxBack 408-970-5600, request 70012 www.siliconix.com FIGURE 3. Three-Phase AC Motor Controller FIGURE 4. External V Regulator DD Si9979 Vishay Siliconix S-60752-Rev. D, 05-Apr-99 7 ...