BD14232FVJ-CE2

Overview

The BD14232FVJ-CE2 is a two-channel current sense amplifier from ROHM Semiconductor, designed for automotive applications. It operates on a single supply voltage ranging from 2.7 V to 18 V with a typical operating current of 0.3 mA. The device features a wide common-mode voltage range of -14 V to +80 V and provides an analog voltage output. Key electrical parameters include a gain of 100 V/V, a gain accuracy of ±1%, and an input bias current of 1 μA. It supports a gain-bandwidth product of 40 kHz and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Features matched gain resistors to minimize gain error and offset voltage.
• Supports high-voltage applications with a common-mode voltage range up to +80 V.
• Provides low input bias current to reduce offset in shunt resistor paths.

Applications

• 48 V DC/DC converters
• Electric compressor systems
• Automotive current monitoring and protection

Procurement Notes

Verify the specific suffix CE2 against official datasheets to confirm package type and tape/reel specifications. Ensure compatibility with AEC-Q100 Grade 1 requirements if functional safety analysis is needed. Confirm that the TSSOP-B8J package dimensions match your PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring precise current sensing in high common-mode voltage environments. The 100 V/V gain option suits applications needing significant signal amplification. Consider the low operating current for power-sensitive designs. Verify that the differential input type aligns with your system's grounding and noise immunity requirements.

Part Context

This part belongs to the BD142xx series of high-precision automotive current sense amplifiers. The series includes variants like BD14230FVJ-CE2 and BD14231FVJ-CE2, offering different gain options. These devices are specifically engineered for automotive reliability, featuring robust performance under extreme temperatures and wide voltage fluctuations typical in vehicle electrical systems.

Replacement Considerations

Check ROHM documentation for direct pin-compatible substitutes within the BD142xx family. Evaluate alternative current sense amplifiers only if they meet the same -14 V to +80 V common-mode range and AEC-Q100 Grade 1 qualification standards.