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Product Detailed Parameters
- Description：IC LED DRIVER CTRLR PWM 16WQFN
- Series：-
- Mfr：Richtek USA Inc.
- Package：Tape & Reel (TR)
- Type：DC DC Controller
- Topology：Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：36V
- Voltage - Output：48V
- Current - Output / Channel：-
- Frequency：350kHz
- Dimming：Analog, PWM
- Applications：Backlight, Lighting
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-WFQFN Exposed Pad
- Supplier Device Package：16-WQFN (3x3)
- Grade：-
- Qualification：-
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Overview
The RT8452GQW is a high-voltage, high-current LED driver controller manufactured by Richtek USA Inc. It utilizes current mode PWM control to drive external MOSFETs for LED applications. The device supports Buck, Boost, and Buck-Boost topologies, offering flexible power supply and light intensity regulation via analog or PWM signals. It operates within a WQFN-16 package.
Feature Summary
- Supports Buck, Boost, and Buck-Boost topologies for flexible LED driving
- Enables light intensity regulation through analog or PWM signals
- Designed as a current mode PWM controller for high current applications
Applications
- High voltage high current LED lighting systems
- LED drivers requiring buck or boost conversion
- Buck-boost topology LED power supplies
Procurement Notes
Verify the specific suffix GQW against the manufacturer's official datasheet to confirm pinout and thermal pad configuration. Ensure compatibility with external MOSFET selection based on the required current and voltage ratings. Confirm RoHS compliance status directly from the latest component documentation before integration.
Selection Notes
Select this component when designing LED drivers that require flexibility in input-output voltage relationships. It is suitable for applications needing precise current control via PWM or analog dimming. Consider the external MOSFET requirements and thermal management needs associated with high-current operation in the chosen topology.
Part Context
This part belongs to Richtek's portfolio of LED driver controllers. It is distinct from integrated switching regulators like the RT4841 or RT2652, as it specifically controls external power stages for LED loads rather than providing a complete fixed output regulator solution.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided source material. Verify functional equivalence with other high-voltage LED driver controllers if substitution is necessary.
FAQ
What topologies does the RT8452GQW support?
It supports Buck, Boost, and Buck-Boost topologies.
How is the LED light intensity regulated?
Intensity can be regulated via analog or PWM signals.
