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Product Detailed Parameters
- Description：IC LED DRVR OFFL ANALOG TSOT23-6
- Series：-
- Mfr：Richtek USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：AC DC Offline Switcher
- Topology：Step-Down (Buck)
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：17V
- Voltage - Supply (Max)：31V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：47kHz
- Dimming：Analog
- Applications：-
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-6 Thin, TSOT-23-6
- Supplier Device Package：TSOT-23-6
- Grade：-
- Qualification：-
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Overview
The RT8458AGJ6 is an offline LED driver IC manufactured by Richtek USA Inc. It utilizes a buck topology for AC/DC applications and supports analog dimming. The device operates within a supply voltage range of 17V to 31V at a switching frequency of 47kHz. It features a single output and lacks an internal switch, requiring external components. The component is housed in a TSOT-23-6 package and is rated for junction temperatures between -40°C and 125°C.
Feature Summary
- Supports analog dimming control for light intensity adjustment
- Designed for AC/DC offline switching power supply topologies
- Utilizes a buck converter architecture for efficient voltage regulation
Applications
- Offline LED lighting systems
- AC/DC powered LED drivers
- General illumination applications requiring analog dimming
Procurement Notes
This component is officially listed as obsolete with a discontinuation date of July 25, 2025. Verification of final stock availability through authorized distributors is required before procurement planning. Ensure compatibility with existing designs due to the end-of-life status. Confirm RoHS3 compliance and MSL level 3 handling requirements during storage and assembly processes.
Selection Notes
Select this part for designs requiring a single-output buck LED driver with analog dimming capability. Verify that the input voltage range of 17V to 31V aligns with the system's rectified line voltage. Consider the absence of an internal switch when designing the external circuitry. The TSOT-23-6 package size should fit the available PCB footprint constraints.
Part Context
The RT8458AGJ6 belongs to the RT8458 family of LED drivers from Richtek. It is specifically engineered for cost-effective, high-reliability offline LED applications. The 'A' suffix typically denotes specific electrical characteristics or revisions within the base model series, while 'GJ6' indicates the TSOT-23-6 package variant.
Replacement Considerations
As the part is obsolete, identify equivalent buck LED drivers with similar voltage ranges and analog dimming support. Verify pinout compatibility to minimize PCB redesign efforts. Check for updated RoHS compliance if transitioning to newer generations.
