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MCP6541 Datasheet(PDF) 12 Page - Microchip Technology |
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MCP6541 Datasheet(HTML) 12 Page - Microchip Technology |
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12 / 28 page  MCP6541/2/3/4 DS21696C-page 12 2003 Microchip Technology Inc. 3.4.1 NON-INVERTING CIRCUIT Figure 3-3 shows a non-inverting circuit for single- supply applications using just two resistors. The resulting hysteresis diagram is shown in Figure 3-4. FIGURE 3-3: Non-inverting circuit with hysteresis for single-supply. FIGURE 3-4: Hysteresis Diagram for the Non-Inverting Circuit. The trip points for Figures 3-3 and 3-4 are: EQUATION 3.4.2 INVERTING CIRCUIT Figure 3-5 shows an inverting circuit for single-supply using three resistors. The resulting hysteresis diagram is shown in Figure 3-6. FIGURE 3-5: Inverting Circuit With Hysteresis. FIGURE 3-6: Hysteresis Diagram for the Inverting Circuit. In order to determine the trip voltages (VTHL and VTLH) for the circuit shown in Figure 3-5, R2 and R3 can be simplified to the Thevenin equivalent circuit with respect to VDD, as shown in Figure 3-7. FIGURE 3-7: Thevenin Equivalent Circuit. VREF VIN VOUT MCP654X VDD R1 RF + - VOUT High-to-Low Low-to-High VDD VOH VOL VSS VSS VDD VTHL VTLH VIN VTLH VREF 1 R1 RF ------- + VOL R1 RF ------ – = VTHL VREF 1 R1 RF ------- + VOH R1 RF ------- – = VTLH = trip voltage from low to high VTHL = trip voltage from high to low VIN VOUT MCP654X VDD R2 RF R3 VDD VOUT High-to-Low Low-to-High VDD VOH VOL VSS VSS VDD VTLH VTHL VIN V23 VOUT MCP654X VDD R23 RF + - VSS |
Similar Part No. - MCP6541 |
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Similar Description - MCP6541 |
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