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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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LB11699H Scheda tecnica(PDF) 8 Page - Sanyo Semicon Device |
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LB11699H Scheda tecnica(HTML) 8 Page - Sanyo Semicon Device |
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8 / 9 page  LB11699H No. 8315 -8/9 Continued from preceding page. Pin No. Pin Pin voltage Description Equivalent Circuit 3 FC Control loop frequency characteristics correction Current control system closed loop oscillations can be prevented by connecting a capacitor between this pin and ground. 2 VCREF 0V to VCC1-1.5V Control system reference voltage input The control system start voltage is determined by this voltage. 1 VC 0V to VCC1 Speed control voltage input This is a voltage controlled system in which: The motor turns in the forward direction when VC > VCREF, and The motor turns decelerates when VC < VCREF. (Since the LB11699H includes a reverse rotation prevention circuit, the motor will never turn in the reverse direction.) 22 WOUT W phase output FRAME GND Output transistor ground 21 VOUT V phase output 20 UOUT U phase output 18 RF High side output transistor collector (common to all three phases) Connect a resistor between the RF pin and VCC3 for current detection. The LB11699H detects this voltage to operate the constant current control and current limiter functions. 27 VLMC 0 to 1.3V This pin determines the current limiter set voltage. The current limiter set voltage can be changed by applying a voltage to this pin. 28 VREF Reference voltage (1.25V typical) output Continued on next page. 3 20k Ω 5k Ω 2k Ω VCC1 VCC1 28 2 200 Ω 100 μA VCC1 15 μA 1 25 μA 25 μA 15 μA 51k Ω 18 3.9 Ω 3.9 Ω VCC2 21 20 22 FRAME GND 27 6pF 200 Ω VCC1 6 μA 6 μA 6 μA |
Codice articolo simile - LB11699H |
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Descrizione simile - LB11699H |
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