LC5546LD

$1.61

Description：IC LED DRIVER OFFL SWITCHER 8DIP
Series：-
Mfr：Sanken Electric USA Inc.
Package：Tube

SKU:065660f4a67c Category: LED Drivers IC Brand: Sanken Electric USA Inc.

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Product introduction

Product Detailed Parameters

Description：IC LED DRIVER OFFL SWITCHER 8DIP
Series：-
Mfr：Sanken Electric USA Inc.
Package：Tube
Type：AC DC Offline Switcher
Topology：-
Internal Switch(s)：Yes
Number of Outputs：1
Voltage - Supply (Min)：-
Voltage - Supply (Max)：20V
Voltage - Output：-
Current - Output / Channel：-
Frequency：-
Dimming：-
Applications：-
Operating Temperature：-55°C ~ 125°C (TA)
Mounting Type：Through Hole
Package / Case：8-DIP (0.300", 7.62mm), 7 Leads
Supplier Device Package：8-DIP
Grade：-
Qualification：-

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LC5546LD

Overview

The LC5546LD is an isolated LED driver IC manufactured by Sanken Electric USA Inc. It integrates a power MOSFET and a control IC into a single package. The device utilizes average current control to achieve high power factors. It operates with a maximum supply voltage of 20V and provides one output. The component is housed in an 8-DIP package with seven leads, measuring 7.62mm in width. It supports through-hole mounting and functions within an operating temperature range of -55°C to 125°C.

Feature Summary

Integrates separate controller and power MOSFET chips for high integration
Adopts average current control method to realize high power factors
Designed as an isolated flyback switcher for LED applications

Applications

LED lighting systems requiring isolation
Offline AC-DC conversion circuits
High power factor LED drivers

Procurement Notes

Verify the specific suffix LD against official Sanken documentation to confirm the DIP-8 package configuration. Ensure the application requires the 20V maximum voltage rating and isolated topology. Cross-reference the pinout diagram with the target PCB layout to confirm compatibility with the seven-lead arrangement. Confirm availability status directly with authorized distributors as supply levels may vary.

Selection Notes

Select this component when an integrated solution combining control logic and power switching is required for isolated LED drives. The average current control feature makes it suitable for applications demanding high power factor correction. Verify that the thermal requirements fit within the specified -55°C to 125°C ambient temperature range. Ensure the circuit design accommodates the through-hole mounting style and the specific footprint dimensions of the 8-DIP package.

Part Context

The LC5546LD belongs to the LC554xLF series of isolated LED driver ICs from Sanken Electric. This series combines analog control capabilities with power semiconductor technology. Similar parts in the family include the LC5546AD and LC5547LF, which share functional similarities but may differ in packaging or specific electrical characteristics. These components are designed for efficient power management in lighting applications.