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LMV393IDGKRG4 bảng dữ liệu(PDF) 10 Page - Texas Instruments |
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10 / 39 page + LMV33x VLOGIC VSUP Vref Vin + LMV33x Vin- Vin+ Rpullup Rpullup VLOGIC VSUP CL CL LMV331, LMV393, LMV339 SLCS136T – AUGUST 1999 – REVISED JANUARY 2015 www.ti.com 9 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 9.1 Application Information LMV331, LMV393, and LMV339 will typically be used to compare a single signal to a reference or two signals against each other. Many users take advantage of the open drain output to drive the comparison logic output to a logic voltage level to an MCU or logic device. The wide supply range and high voltage capability makes LMV331, LMV393, and LMV33 optimal for level shifting to a higher or lower voltage. 9.2 Typical Application Figure 9. Typical Application Schematic 9.2.1 Design Requirements For this design example, use the parameters listed in Table 1 as the input parameters. Table 1. Design Parameters DESIGN PARAMETER EXAMPLE VALUE Input Voltage Range 0 V to 4.2 V Supply Voltage 2.7 V to 5V Logic Supply Voltage (RPULLUP Voltage) 1 V to 5 V Output Current (VLOGIC/RPULLUP) 1 µA to 20 mA Input Overdrive Voltage 100 mV Reference Voltage 2.5 V Load Capacitance (CL) 15 pF 9.2.2 Detailed Design Procedure When using LMV331, LMV393, and LMV33 in a general comparator application, determine the following: • Input Voltage Range • Minimum Overdrive Voltage • Output and Drive Current • Response Time 10 Submit Documentation Feedback Copyright © 1999–2015, Texas Instruments Incorporated |
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