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Product Detailed Parameters
- Description：IC LED DRIVER RGLTR PWM 4A 8HSOP
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Regulator
- Topology：Step-Down (Buck)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：18V
- Voltage - Output：-
- Current - Output / Channel：4A
- Frequency：850kHz
- Dimming：PWM
- Applications：Lighting, Signage
- Operating Temperature：-40°C ~ 150°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 LED2001PHR is a monolithic buck DC-DC converter designed as a precision constant current source for high-brightness LEDs. It features an integrated synchronous rectification architecture with a fixed switching frequency of 850 kHz, supporting input voltages from 3 V to 18 V and delivering up to 4 A of adjustable output current. The device incorporates embedded PWM dimming control, thermal shutdown, and overcurrent protection within a compact 8-pin VFQFPN package.
Feature Summary
- Integrated synchronous rectification for enhanced efficiency
- Embedded PWM dimming circuitry for brightness control
- Compact design compatible with ceramic output capacitors
Applications
- High-brightness LED driving
- Signage illumination
- Halogen lamp replacement systems
- General solid-state lighting
Procurement Notes
Verify the specific suffix 'PHR' against official STMicroelectronics documentation to confirm reel packaging specifications and tape-and-reel dimensions. Ensure the ordering part number matches the exact voltage and current ratings required for your application design. Cross-reference the datasheet revision date to validate all electrical characteristics before finalizing procurement.
Selection Notes
Select this component when designing space-constrained LED drivers requiring high efficiency and precise current regulation. The 850 kHz frequency allows for smaller passive components compared to lower-frequency alternatives. Verify that the thermal management solution supports the maximum junction temperature limits specified in the technical data sheet.
Part Context
This device belongs to the LED2001 series of power management ICs from STMicroelectronics. It is engineered specifically for LED applications where stable current delivery and compact form factors are critical. The series utilizes peak current mode architecture to ensure robust performance across varying load conditions.
Replacement Considerations
Consult official STMicroelectronics substitution guides for verified equivalents. Generic replacements may not match the specific synchronous rectification or dimming integration.
