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LB11870 データシート(PDF) 7 Page - ON Semiconductor |
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LB11870 データシート(HTML) 7 Page - ON Semiconductor |
7 / 14 page LB11870 No.7256-7/14 Pin Functions Pin No. Symbol Pin Description Equivalent Circuit 3 1 46 OUT1 OUT2 OUT3 Motor drive output 44 GND3 Output block ground 37 38 VM1 VM2 Output block power supply and current detection. Insert the resistor Rf between this pin and VCC1. The output current will be limited to the current value IOUT = VRF/Rf. 39 VCC2 Upper diode cathode connection. Short this pin to VCC1. 11 12 9 10 6 8 IN1+ IN1- IN2+ IN2- IN3+ IN3- Hall element inputs. The high state is when IN+ is greater than IN-, and the low state is the reverse. An amplitude of at least 100mVp-p (differential) is desirable for the Hall element signal inputs. If noise on the Hall signals is a problem, insert capacitors between the IN+ and IN- inputs. 13 14 FGIN+ FGIN- FG input. If noise on the FG signal input is a problem, connect a filter consisting of either a capacitor or a capacitor and a resistor. 15 GND1 Control circuit block ground 16 GND2 SUBGND pin 17 PWM Sets the PWM oscillator frequency. Insert a capacitor between this pin and ground. The PWM oscillator frequency is set to about 34kHz when a 680pF capacitor is used. Continued on next page. 1 3 46 300 Ω 44 37 VCC1 38 39 VREG 300 Ω 8 300 Ω 11 9 6 12 10 VREG 300 Ω 14 300 Ω 13 VREG 200 Ω 17 |
同様の部品番号 - LB11870 |
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同様の説明 - LB11870 |
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