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Low-Cost, Flexible Voltage Supervisor and Battery Tester Reference Design
(ACTIVE) TIDA-00670
View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.
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
• 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
View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.
