BD9421F-GE2

$3.22

Description：IC LED DRIVER CTRLR ANALOG 24SOP
Series：-
Mfr：Rohm Semiconductor
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:e9131739d58c Category: LED Drivers IC Brand: Rohm Semiconductor

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Product introduction

Product Detailed Parameters

Description：IC LED DRIVER CTRLR ANALOG 24SOP
Series：-
Mfr：Rohm Semiconductor
Package：Tape & Reel (TR),Cut Tape (CT)
Type：DC DC Controller
Topology：Step-Down (Buck)
Internal Switch(s)：Yes
Number of Outputs：6
Voltage - Supply (Min)：9V
Voltage - Supply (Max)：35V
Voltage - Output：-
Current - Output / Channel：-
Frequency：150kHz
Dimming：Analog
Applications：Backlight
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：24-SOIC (0.213", 5.40mm Width)
Supplier Device Package：24-SOP
Grade：-
Qualification：-

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BD9421F-GE2

Overview

The BD9421F-GE2 is a six-channel white LED driver IC manufactured by ROHM Semiconductor, designed for large LCD panel backlight applications. It utilizes a buck topology with an internal power switch and supports analog dimming control. The device operates within a supply voltage range of 9V to 35V and features a switching frequency of 150kHz. Packaged in a 24-SOP format, it provides constant current output across its channels. The component is rated for operation between -40°C and +85°C, with a maximum power dissipation of 750mW.

Feature Summary

Six independent output channels for uniform backlight distribution
Integrated buck converter with internal power MOSFET
Supports analog dimming control via dedicated input pin

Applications

Large LCD panel backlighting systems
Industrial display modules requiring multi-channel LED drive
Consumer electronics with high-brightness screen requirements

Procurement Notes

Verify the Not Recommended for New Design (NRND) status before integration into new products. Confirm package compatibility and thermal management requirements for SOP-24. Check latest datasheet revisions for any changes in electrical characteristics or recommended operating conditions.

Selection Notes

Select this component for designs requiring six synchronized LED channels driven by a single controller. Ensure the input voltage range aligns with the system's power supply. Consider the 150kHz switching frequency when designing filter components and assessing electromagnetic interference constraints.

Part Context

This part belongs to ROHM's series of LED lighting drivers specifically engineered for LCD backlights. It integrates multiple functions into a compact surface-mount package, reducing external component count compared to discrete solutions. The family focuses on efficiency and reliability for display applications.