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LB1620 Datasheet(PDF) 4 Page - Sanyo Semicon Device |
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LB1620 Datasheet(HTML) 4 Page - Sanyo Semicon Device |
4 / 6 page LB1620 No.1210-4/6 Pin Description Pin name Pin No. Function UIN1, UIN2 VIN1, VIN2 WIN1, WIN2 13, 14 15, 16 17, 18 U phase Hall element input pin, "H" of logic : VIN1>VIN2 V phase Hall element input pin, "H" of logic : VIN1>VIN2 W phase Hall element input pin, "H" of logic : VIN1>VIN2 UOUT VOUT WOUT 3 2 1 U phase output pin V phase output pin W phase output pin VCC1 4 Power supply pin for applying output VCC2 19 Power supply pin for applying voltage to each section other than output section. The control point of control voltage is at approximately 1/2 of this voltage. This voltage must be stabilized to be free from ripple, noise, etc. Rf 20 Output current detect pin. By connecting Rf across this pin and GND pin, output current is detected as voltage. CD 10 Pin for fetching current (voltage) detected with Rf. By connecting a resistor across CD pin and Rf, speed control start voltage can be fine-adjusted. STOP 9 Overcurrent protection pin. Voltage being lower than that on CD pin is taken to be identical to overcurrent flow, causing output to be cut off. Off-state is held. For example, if STOP pin is set to 1.5V for Rf=1Ω, approximately 1.5A or more flows at output, causing output to be cut off. FCU FCV FCW 5 6 7 Frequency characteristic compensation pin. Closed loop oscillation in current-controlled system (including motor, F/V converter) is stopped. VC 11 Speed/phase control pin. Control starts at approximately 1/2 of VCC2. Control is of current-controlled type that controls output current. For Rf=1Ω, LB1620 closed loop has gm of 0.44A/V typ, which can be adjusted by varying Rf. GND 8 GND for other than output. Minimun potential of output transistor is at Rf pin. F/RC 12 Forward/reverse rotation control pin. By setting this pin to "H" (more than 2V) / "L" (less than 0.3V), truth value is changed to perform forward/reverse rotation. Sample Application Circuit Unit (resistance : Ω, capacitance : F) (Stabilization) Power supply for Hall element Forward/reverse select Control signal input 2 |
Número de pieza similar - LB1620 |
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Descripción similar - LB1620 |
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