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Product Detailed Parameters
- Description：IC LED DRVR RGLTR PWM 1.2A 8WDFN
- Series：-
- Mfr：Richtek USA Inc.
- Package：Tape & Reel (TR)
- Type：DC DC Regulator
- Topology：Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：24V
- Voltage - Output：43V
- Current - Output / Channel：1.2A (Switch)
- Frequency：1MHz
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-WDFN Exposed Pad
- Supplier Device Package：8-WDFN (3x3)
- Grade：-
- Qualification：-
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Overview
The RT8511AGQWA is an LED lighting driver IC from Richtek USA Inc., designed for WLED applications. It utilizes an asynchronous boost topology to drive LEDs with a maximum output current of 2.2 A and a maximum output voltage of 43 V. The device operates on a supply voltage range of 2.7 V to 24 V and functions at a switching frequency of 500 kHz. It is housed in a WDFN-8 package and supports PWM dimming along with overvoltage protection features, operating within a temperature range of -40°C to +85°C.
Feature Summary
- Asynchronous boost topology for efficient WLED driving
- Integrated PWM dimming capability for brightness control
- Built-in overvoltage protection for system safety
Applications
- White LED (WLED) backlighting systems
- Portable electronic device illumination
- General LED lighting drivers
Procurement Notes
Verify the specific suffix 'A' against official Richtek documentation to confirm if it denotes a specific tape-and-reel quantity or packaging variant distinct from the standard RT8511BGQW. Ensure the component matches the WDFN-8 package outline and RoHS compliance status listed in the manufacturer's datasheet before procurement.
Selection Notes
Select this component when designing circuits requiring a single-output boost driver for WLEDs with up to 2.2 A current capacity. Consider the 500 kHz switching frequency for inductor size trade-offs and verify that the input voltage range of 2.7 V to 24 V aligns with the system power supply constraints.
Part Context
This part belongs to the RT8511 family of LED drivers. It shares core electrical specifications with variants like the RT8511BGQW but may differ in packaging or ordering suffix details. It serves as a solution for compact LED lighting designs requiring integrated protection and dimming features.
Replacement Considerations
The RT8511BGQW is a closely related variant within the same product family. Verify if the 'A' suffix implies any functional differences or if they are interchangeable based on the latest official substitution guidelines.
