ZHCSCB4C march 2014 – march 2021 TPS3700-Q1
PRODUCTION DATA
- 1 特性
- 2 应用
- 3 说明
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Detailed Description
- 8 Application and Implementation
- 9 Power Supply Recommendations
- 10Layout
- 11Device and Documentation Support
- 12Mechanical, Packaging, and Orderable Information
8.2.2 Detailed Design Procedure
Use Equation 1 through Equation 4 to calculate the resistor divider values and target threshold voltage.
Select a value for RT such that the current through the divider is approximately 100-times higher than the input current at the INA+ and INB– terminals. The resistors can have high values to minimize current consumption as a result of low-input bias current without adding significant error to the resistive divider. See the application note Optimizing Resistor Dividers at a Comparator Input (SLVA450) for details on sizing input resistors.
Use Equation 2 to calculate the value of R3.
where
- VMON(OV) is the target voltage at which an overvoltage condition is detected
Use Equation 3 or Equation 4 to calculate the value of R2.
where
- VMON(no UV) is the target voltage at which an undervoltage condition is removed as VMON rises
where:
VMON(UV) is the target voltage at which an undervoltage condition is detected