2U3820-50QDBVRG4Q1

Overview

The TPS3820-50QPDBVRQ1 is a single-channel voltage supervisor IC from Texas Instruments, designed for automotive applications with AEC-Q100 qualification. It features a fixed output threshold of 4.55V and provides an active-low reset signal via a push-pull/totem pole output. The device operates within a supply voltage range up to 6V and includes a minimum reset timeout of 15ms. It is housed in a compact SOT-23-5 package and supports surface-mount installation across an extended temperature range of -40°C to +125°C.

Feature Summary

• AEC-Q100 qualified for automotive reliability standards
• Active-low reset output with push-pull configuration
• Fixed 4.55V monitoring threshold for precise supervision
• Extended industrial temperature operation capability

Applications

• Automotive electronic control unit power monitoring
• Microcontroller system reset generation
• Battery backup circuit supervision
• Embedded system voltage integrity verification

Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's official documentation to confirm lead-free compliance and RoHS status. Ensure the ordering part number matches the exact pinout and thermal characteristics required for your PCB layout. Cross-reference the datasheet revision date to validate current manufacturing specifications before finalizing procurement orders.

Selection Notes

Select this component when a fixed 4.55V threshold is required for single-supply monitoring in automotive environments. The push-pull output allows direct interfacing with digital logic without external pull-up resistors. Consider the SOT-23-5 package size constraints and the 15ms minimum reset delay when designing timing-critical microcontroller initialization sequences.

Part Context

This part belongs to the TPS382x-Q1 family of processor supervisory circuits. It shares functional similarities with other members of the series but is distinguished by its specific 4.55V threshold voltage and automotive-grade certification. The G4 suffix typically indicates lead-free packaging compliant with international environmental directives.

Replacement Considerations

Direct substitutes include other TPS3820 variants with different threshold voltages if the 4.55V level is adjustable or compatible. Verify pin compatibility with alternative supervisors like the TPS3808-Q1, ensuring output drive strength and reset timeout parameters meet design requirements.