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Product Detailed Parameters
- Description：IC LED DRIVER LINEAR TRIAC 8DFN
- Series：-
- Mfr：MaxLinear, Inc.
- Package：Tape & Reel (TR),Tape & Reel (TR)
- Type：Linear
- Topology：-
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：6V
- Voltage - Supply (Max)：78V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：-
- Dimming：Triac
- Applications：Lighting
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-WDFN Exposed Pad
- Supplier Device Package：8-DFN (3x3)
- Grade：-
- Qualification：-
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Overview
The XR46203IHBTR is a two-step LED current controller designed for AC voltage sources. It features line regulation compensation and operates within an input voltage range of 6 V to 78 V. The device provides two output channels with adjustable current from 20 mA to 180 mA. Packaged in a TDFN-8 format, it supports surface mount installation. Operating temperatures span from -40°C to +85°C, with a maximum supply voltage of 78 V and quiescent current of 300 uA.
Feature Summary
- Two-step integrated driver architecture for AC applications
- Built-in thermal foldback and VIN pin clamp protection
- Line regulation compensation for wide AC voltage ranges
Applications
- Replacing incandescent light bulbs
- Linear type fluorescent lamp replacement
- AC direct drive LED lighting systems
Procurement Notes
Verify component authenticity through authorized channels due to end-of-life status. Confirm package integrity and pin alignment against the TDFN-8 specification. Review datasheet revisions for any design-in changes. Ensure compatibility with existing thermal management solutions given the integrated foldback features.
Selection Notes
Select this component for designs requiring direct AC drive without electrolytic capacitors. Consider the dual-channel capability for balanced load distribution. Evaluate the 78 V maximum rating against peak line voltages. Verify that the 20 mA to 180 mA output range meets specific LED string requirements.
Part Context
Part of the MaxLinear XR4620x series of LED drivers. Designed to replace traditional lighting components with solid-state alternatives. Shares architectural similarities with other two-step controllers in the family but offers specific voltage and current parameters tailored for general illumination replacements.
Replacement Considerations
Check for equivalent two-step AC LED drivers from other manufacturers if new production is required. Verify pinout compatibility for direct board swaps. Assess thermal performance differences in alternative packages.
