Key facts
- Brand
- STMicroelectronics
- Model
- STCS2
- Category
- LED Driver Controller
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-10
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STMicroelectronics STCS2A Constant Current LED Driver Datasheet
The STCS2A is a BiCMOS constant current source designed to provide a precise constant current starting from a varying input voltage source. It is intended to replace discrete component solutions for driving LEDs in low voltage applications such as 5 V, 12 V, or 24 V, offering benefits in precision, integration, and reliability. The device sets the current with an external resistor up to 2 A with a ±10% precision.
Read onlineSTMicroelectronics STCS2 specifications
| Supply voltage range | 4.5 to 40 V |
|---|---|
| Feedback voltage | 90 to 110 mV |
| Quiescent current (On Mode) | 450 to 750 µA |
| Dropout voltage (IO = 100 mA) | 0.12 to 0.16 V |
| Thermal Protection Shutdown temperature | 155 °C |
Source: STMicroelectronics STCS2A Constant Current LED Driver Datasheet
All STMicroelectronics STCS2 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
How is the output current set?
The current is set with an external sensing resistor connected to the FB pin, where the feedback voltage is 100 mV.
From: STMicroelectronics STCS2A Constant Current LED Driver Datasheet
What is the maximum dimming frequency?
The maximum dimming frequency is limited by the minimum rise/fall time of the current, which is around 4 µs each.
From: STMicroelectronics STCS2A Constant Current LED Driver Datasheet
What is the input voltage range of the STCS2?
The STCS2 has a supply voltage range of 4.5 V to 40 V.
From: STMicroelectronics STCS2 2 A Constant Current LED Driver Datasheet
How is the LED current set?
It is set with an external sensing resistor connected to the FB pin; the feedback voltage is 100 mV.
From: STMicroelectronics STCS2 2 A Constant Current LED Driver Datasheet