BD7684FJ-LBE2

$2.98

Description：IC OFFLINE SWITCH FLYBACK 8SOPJ
Series：-
Mfr：Rohm Semiconductor
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:ea6b38b5e4fc Category: AC DC Converters, Offline Switchers Brand: Rohm Semiconductor

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Product introduction

Product Detailed Parameters

Description：IC OFFLINE SWITCH FLYBACK 8SOPJ
Series：-
Mfr：Rohm Semiconductor
Package：Tape & Reel (TR),Cut Tape (CT)
Output Isolation：Isolated
Internal Switch(s)：No
Voltage - Breakdown：-
Topology：Flyback
Voltage - Start Up：19.5 V
Voltage - Supply (Vcc/Vdd)：15V ~ 27.5V
Duty Cycle：-
Frequency - Switching：120kHz
Fault Protection：Current Limiting, Over Load, Over Voltage
Control Features：-
Operating Temperature：-40°C ~ 150°C (TJ)
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SOP-J
Mounting Type：Surface Mount
Grade：-
Qualification：-
Power (Watts)：-

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BD7684FJ-LBE2

Overview

The BD7684FJ-LBE2 is a quasi-resonant AC/DC converter IC manufactured by ROHM Semiconductor. It operates within an input voltage range of 15 V to 27.5 V, with a nominal input of 24 V and a typical output voltage of 18 V. The device utilizes resonant control techniques and supports PFM operation for light load efficiency. It is housed in an LSOP package (R-PDSO-G8) with eight terminals, measuring 4.9 mm in length. The component functions as a switching controller designed for automotive applications, operating reliably between -40 °C and 105 °C.

Feature Summary

Quasi-resonant control architecture enabling soft switching for reduced electromagnetic interference.
Supports Pulse Frequency Modulation (PFM) technique to minimize power consumption during light load conditions.
Integrated protection mechanisms including overvoltage and overcurrent safeguards.

Applications

Automotive power supply systems
Industrial equipment requiring stable DC conversion
AC/DC converter designs utilizing external switching MOSFETs

Procurement Notes

Verify the specific suffix LBE2 against the manufacturer's official documentation to confirm package type and tape/reel specifications. Ensure the application environment aligns with the specified automotive-grade temperature range and input voltage limits. Cross-reference the datasheet for exact pinout configurations and thermal requirements before integration.

Selection Notes

Select this component when designing AC/DC converters requiring quasi-resonant operation for low EMI performance. It is suitable for applications needing PFM control to enhance light-load efficiency. Consider the external MOSFET requirement and the specific input voltage window of 15 V to 27.5 V for system compatibility.

Part Context

This part belongs to the BD768xFJ-LB series of quasi-resonant AC/DC converters from ROHM. These devices are engineered for industrial and automotive markets, offering long-term supply availability. The series emphasizes flexibility through the use of external switching components and current detection resistors, allowing for customized power design solutions.