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LB11872H Scheda tecnica(PDF) 6 Page - Sanyo Semicon Device |
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LB11872H Scheda tecnica(HTML) 6 Page - Sanyo Semicon Device |
6 / 11 page LB11872H No.7257-6/11 Pin Functions Pin No. Pin name Function Equivalent circuit 2 3 4 5 6 7 IN2+ IN2- IN1+ IN1- IN3+ IN3- Hall effect sensor signal inputs. These inputs are high when IN+ is greater than IN- and low when IN- is greater than IN+. Insert capacitors between the IN+ and IN– pins to reduce noise. An amplitude of over 50mVp-p and under 350mVp-p is desirable for the Hall input signals. Kickback can occur in the output waveform if the Hall input amplitude is over 350mVp-p. 300 Ω 300 Ω 2 4 6 3 5 7 VCC 8 AGC AGC amplifier frequency characteristics correction. Insert a capacitor (about 0.022 μF) between this pin and ground. 300 Ω 8 VREG 9 MN Monitor pin. This pin should be left open in normal operation. 12 CSD Used for both initial reset pulse generation and as the reference time for constraint protection circuits. Insert a capacitor between this pin and ground. VREG 12 300 Ω 14 FG FG pulse output. This is an open-collector output. VREG 14 15 S/S Start/stop control. Low : Start 0 to 1.0V High : Stop 2.0V to VREG This pin goes to the high level when open. VREG 33k Ω 5k Ω 15 30k Ω Continued on next page. |
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