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LB1916 датащи(PDF) 5 Page - Sanyo Semicon Device |
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LB1916 датащи(HTML) 5 Page - Sanyo Semicon Device |
5 / 7 page No. 5653-5/7 LB1916 Pin Functions Pin No. Pin Pin voltage Pin function Equivalent circuit 3, 4, 20, 21 GND • GND 23 22 19 UOUT VOUT WOUT • Outputs • Connect these pins to the motor. 17 Rf • Ground for the output transistors • The output current can be detected as a voltage by connecting a resistor between the Rf pin and ground. This can then be used to implement overcurrent protection. 18, 24, 7 NC • No connection 16 VCC2 4.3 to 6.5 V • Power supply for circuits other than the output block • The power supply provided by this pin must be well stabilized so that noise does not occur. 15 14 Z1 Z2 • Connections for the resistors that set the front-end amplifier gain • Z1 and Z2 are common, and have a resistance of between a few tens of k Ω and a few hundreds of kΩ. • The gain is about 6 dB. 13 12 VC VCREF VCC2 ——— ±1.0 2 • VC is the speed control pin. When VC > VCREF: Forward rotation When VC < VCREF: Reverse rotation The output voltage is controlled by the VC voltage. • VCREF determines the motor control stop voltage. Normally, this will be VCC2/2. 11 10 GC1 GC2 0 to VCC2 • I/O gain switching input • GC1 switches Z1 and Z2 for the front end amplifier. When GC1 is low, Z1 is selected, and when GC1 is high, Z2 is selected. GC2 switches the amplifier in the second stage. Continued on next page. |
Аналогичный номер детали - LB1916 |
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Аналогичное описание - LB1916 |
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