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Product Detailed Parameters
- Description：IC LED DRVR LIN PWM 500MA 8SOIC
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Linear
- Topology：-
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：40V
- Voltage - Output：-
- Current - Output / Channel：500mA
- Frequency：-
- Dimming：PWM
- Applications：-
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The STCS05ADR is a BiCMOS constant current source designed for driving LEDs from varying input voltage sources. It supports Boost and Buck topologies with an input voltage range of 4.5 V to 40 V. The device delivers up to 500 mA output current with ±10% precision, set by an external resistor. It operates at a frequency of 50 kHz and features adjustable output voltage. The component is housed in an SOIC-8 package, supports surface mount installation, and functions within a temperature range of -40°C to +150°C.
Feature Summary
- Provides precise constant current regulation to replace discrete component solutions
- Includes dedicated pins for PWM dimming and shutdown control
- Features an open-drain diagnostic pin for load disconnection detection
Applications
- LED driving in low voltage applications such as 5 V, 12 V, or 24 V systems
- Precision lighting integration requiring high reliability
- Constant current source designs for varying input voltage sources
Procurement Notes
Verify the specific suffix 'ADR' against the manufacturer's official datasheet to confirm packaging details and tape-and-reel specifications. Ensure the selected variant matches the required operating temperature range and package type for your design. Cross-reference the part number with authorized distributors to confirm active status and compliance with RoHS directives before finalizing procurement.
Selection Notes
Select this component when a compact solution is needed to replace discrete LED drivers in low-voltage environments. It is suitable for designs requiring precise current control up to 0.5 A with minimal voltage overhead. Consider the SOIC-8 package constraints and thermal dissipation capabilities relative to the expected power load and ambient operating conditions.
Part Context
The STCS05ADR belongs to the STCS05A series of LED lighting driver ICs manufactured by STMicroelectronics. This series focuses on integrating constant current functionality into a single BiCMOS chip to enhance system precision and reliability compared to discrete implementations.
FAQ
How is the output current regulated?
The output current is set using an external resistor and maintains a precision of ±10% up to 0.5 A.
What diagnostic features are included?
An open-drain pin provides information regarding load disconnection conditions.
