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Product Detailed Parameters
- Description：IC LED DRIVER CTRLR PWM 16WQFN
- Series：-
- Mfr：Richtek USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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：-
- Current - Output / Channel：-
- Frequency：100kHz ~ 1MHz
- 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 RT8462ZQW is a current mode PWM controller designed to drive an external MOSFET for high-current LED applications. It supports buck and boost topologies with a supply voltage range of 4.5V to 36V. The device operates at frequencies between 100kHz and 1MHz and features analog and PWM dimming capabilities. Packaged in a 16-WQFN (3x3) case, it functions as a DC-DC controller with one output. The component is rated for junction temperatures from -40°C to 125°C.
Feature Summary
- Supports step-down (buck) and step-up (boost) converter topologies for flexible LED driving configurations.
- Enables precise light control through combined analog and pulse-width modulation dimming methods.
- Integrates a current sense amplifier threshold mechanism for accurate current regulation in high-current scenarios.
Applications
- LED backlighting systems
- General solid-state lighting
Procurement Notes
Verify the specific suffix ZQW against the manufacturer datasheet to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status and check for any product change notices or obsolescence alerts prior to finalizing procurement decisions.
Selection Notes
Select this component when designing circuits requiring independent buck or boost control for single-output LED loads. Ensure the external MOSFET selection aligns with the controller's drive capabilities and that the operating frequency range matches system thermal requirements.
Part Context
This part belongs to the RT8462 series of power management ICs manufactured by Richtek USA Inc. It is categorized under PMIC LED drivers and serves as a dedicated controller for managing power delivery to LED arrays in compact electronic devices.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing PCB footprints and control loop parameters if considering alternative components.
FAQ
Does the RT8462ZQW include an internal switch?
No, the RT8462ZQW is a controller designed to drive an external MOSFET and does not contain an internal switch.
What is the maximum supply voltage for this IC?
The maximum supply voltage for the RT8462ZQW is 36V.
