Low-Cost, Flexible Voltage Supervisor and Battery Tester Reference Design
TIDA-00670
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
See the Important Notice and Disclaimer covering reference designs and other TI resources.
Key Document
- Low-Cost Flexible Voltage Supervisor and Battery Tester Design Guide
(PDF 1551 KB)
31 Aug 2015
Description
This is a low-cost, flexible voltage supervisor that uses a voltage reference in order to test the voltage of a battery. This solution can also be used as a voltage rail monitor for many applications that require accurate power delivery with multiple rails. With TI's ultra-low power voltage references, the total system power consumption is reduced, while maintaining a low BOM cost. Testing and displaying the battery voltage provides an example of how easily this can be designed and implemented in comparable applications.
Features
- The ATL431 shunt regulator allows for voltage regulation with minimal current consumption (60 µA)
- TLV61225 boost converter enables the entire circuit to be powered from a AA battery (0.8 V to 3.3 V Input)
- User Configurable resistor ladder creates customizable number of voltage rails for supervision
- Low Cost to design for customized voltage supervision
- Footprint can fit on the backside of a single AA battery voltage holder
- No Firmware or Software Needed
See the Important Notice and Disclaimer covering reference designs and other TI resources.
