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Product Detailed Parameters
- Description：IC LED DRIVER RGLTR PWM 3A 8HSOP
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Regulator
- Topology：Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：5.5V
- Voltage - Supply (Max)：48V
- Voltage - Output：-
- Current - Output / Channel：3A
- Frequency：850kHz
- Dimming：PWM
- Applications：Lighting, Signage
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Supplier Device Package：8-HSOP
- Grade：-
- Qualification：-
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Overview
The LED5000PHR is a monolithic step-down DC-DC converter IC designed as a precise constant current source for driving LEDs. It features an adjustable output current capability up to 3 A and operates with a fixed switching frequency of 850 kHz. The device supports an input voltage range from 5.5 V to 48 V and includes embedded PWM dimming circuitry for brightness control. It utilizes a peak current mode architecture with a typical sense voltage drop of 200 mV and offers ±3% output current accuracy over temperature. The component is housed in an 8-HSOP package with exposed pad.
Feature Summary
- Supports buck, buck-boost, and floating boost topologies for flexible design implementation
- Integrates high-performance PWM dimming circuitry for precise LED brightness control
- Includes comprehensive protection against overheating, overcurrent, and output short-circuit
Applications
- Automotive LED lighting systems
- Architectural lighting fixtures
- Halogen bulb replacement applications
Procurement Notes
Verify the specific suffix 'PHR' corresponds to the tape and reel packaging configuration when ordering. Confirm that the 8-HSOP package dimensions match the target PCB footprint. Ensure the input voltage supply remains within the 5.5 V to 48 V operational range to maintain specified performance and reliability standards.
Selection Notes
Select this component for designs requiring a single-chip solution for high-current LED strings. The wide input voltage range accommodates various power sources. Consider the thermal management requirements due to the internal switch and high current capacity. Verify compatibility with ceramic output capacitors to minimize application size.
Part Context
This part belongs to the LED5000 family of monolithic LED drivers manufactured by STMicroelectronics. It is specifically engineered for applications demanding high efficiency and precise current regulation. The device integrates the power switch and control logic into a single compact package, simplifying the design process for LED illumination systems.
Replacement Considerations
Direct substitutes are not explicitly confirmed in public documentation. Evaluate alternative STMicroelectronics LED drivers based on matching current ratings, input voltage ranges, and package types. Verify functional compatibility before replacing the existing component in a design.
