BD5238FVE-TR

Overview

The BD5238FVE-TR is a voltage detector with an adjustable delay time, manufactured by ROHM Semiconductor. It features an under-voltage detection voltage of 3.8 V typical and a precision of ±1%. The reset active voltage range spans from 0.95 V to 10 V. The output type is open drain, and the reset delay timer is adjustable. The reset active state is low. There is no manual reset or watchdog timer functionality. The circuit current is 0.85 μA when on (at Vdet=4.8V) and 0.85 μA when off (at Vdet=4.8V). It operates within a temperature range of -40°C to +105°C and is housed in a VSOF-5 package.

Feature Summary

• Features an adjustable delay timer for customizable reset timing.
• Provides high-precision under-voltage detection with ±1% accuracy.
• Operates with low power consumption suitable for battery-powered applications.

Applications

• General purpose voltage monitoring in electronic circuits
• Microprocessor reset systems requiring adjustable delay
• Battery-operated devices needing low standby current

Procurement Notes

Verify component authenticity through authorized distributors. Confirm RoHS compliance status as per latest documentation. Check supply status as this part may be subject to end-of-life notices. Ensure ordering suffix matches required packaging specifications. Validate datasheet version for accurate electrical parameters before integration.

Selection Notes

Select based on required detection voltage threshold and delay time configuration needs. Consider package compatibility with existing PCB layout constraints. Evaluate operating temperature range against environmental conditions. Compare power consumption requirements with alternative supervisory ICs. Verify output drive capability matches downstream logic levels.

Part Context

Part of the BD52xx series of CMOS reset ICs designed for precise voltage supervision. Utilizes ROHM's CMOS process technology for low current consumption. Designed for reliable operation across industrial temperature ranges. Offers flexibility through external component adjustment for delay times.

Replacement Considerations

BD5238G-1 is listed as a similar level replacement with the same pinout and package. Verify functional equivalence regarding output type and delay adjustability before substitution.

FAQ

How is the reset delay time configured?

The reset delay time is adjustable, typically set using an external capacitor connected to the designated pin.

What is the output configuration of this device?

The BD5238FVE-TR features an open-drain output type with a low-active reset state.