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Product Detailed Parameters
- Description：LED DRIVER
- Series：EL7801
- Mfr：Intersil
- Package：Bulk
- Type：DC DC Controller
- Topology：Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：16V
- Voltage - Output：32V
- Current - Output / Channel：1A
- Frequency：1MHz
- Dimming：PWM
- Applications：Backlight, Lighting
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-VQFN Exposed Pad
- Supplier Device Package：20-QFN (5x5)
- Grade：-
- Qualification：-
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Overview
The Intersil EL7801ALZ is a high-power LED backlight driver IC featuring an integrated 36V FET. Designed for driving up to eight high-power LEDs in series, it operates with a maximum supply voltage of 16V and delivers a continuous output current of 1A per channel. The device utilizes a 1MHz switching frequency and supports PWM dimming for brightness control. It employs Buck and Boost topologies within a compact 20-QFN (5x5) package.
Feature Summary
- Integrates a 36V power FET for simplified circuit design
- Supports PWM dimming for precise brightness adjustment
- Capable of driving multiple high-power LEDs in series configurations
Applications
- LCD backlight drivers for portable devices
- High-power LED lighting systems
- Industrial display illumination
Procurement Notes
Verify the specific suffix 'ALZ' against the manufacturer's datasheet to confirm the exact packaging type and RoHS compliance status. Ensure the component source is authorized to avoid counterfeit risks, as legacy parts may have limited availability or require substitution verification through official Renesas channels.
Selection Notes
Select this component when a single-channel solution is required for series-connected LED arrays. The integrated switch eliminates external MOSFET selection. Verify that the input voltage range and thermal requirements of the 20-QFN package align with the target application's constraints before finalizing the design.
Part Context
This part belongs to the Intersil EL7801 series, which was acquired by Renesas Electronics. While originally branded under Intersil, technical documentation and support are now managed under the Renesas portfolio. The device represents a specialized power management solution for display backlighting applications.
Replacement Considerations
Consult Renesas Product Legacy Documents for officially confirmed substitute part numbers. Direct replacements must maintain identical pinout, electrical characteristics, and package dimensions to ensure compatibility without redesigning the PCB layout.
