Product overview
Description
The STCS1 is a BiCMOS constant current source designed to provide a precise constant current starting from a varying input voltage source. The main target is to replace discrete components solution for driving LEDs in low voltage applications such as 5 V, 12 V or 24 V giving benefits in terms of precision, integration and reliability.
The current is set with external resistor up to 1.5 A with a ± 10 % precision; a dedicated pin allows implementing PWM dimming.
An open-drain pin output provides information on load disconnection condition.
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All features
- LED disconnection diagnostic
- Up to 40 V input voltage
- Up to 1.5 A output current
- Less than 0.5 V voltage overhead
- Shutdown pin
- PWM dimming pin
Circuit Diagram
Recommended for you
Events and Seminars
Related Applications
Industrial
All resources
Resource title | Version | Latest update |
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Product Specifications (1)
Resource title | Version | Latest update | ||
---|---|---|---|---|
9.0 | 24 Jan 2022 | 24 Jan 2022 |
User Manuals (1)
Resource title | Version | Latest update | ||
---|---|---|---|---|
2.2 | 04 Feb 2016 | 04 Feb 2016 |
Flyers (1)
Resource title | Version | Latest update | ||
---|---|---|---|---|
1.0 | 31 Aug 2023 | 31 Aug 2023 |
EDA Symbols, Footprints and 3D Models
STMicroelectronics - STCS1
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
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Symbols

Footprints

3D models
Quality and Reliability
Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
---|---|---|---|---|---|---|---|
STCS1PHR | Active | PowerSO-8 | Industrial | Ecopack2 | - | - | |
STCS1PUR | Active | QFN-8L P 0.5 mm | Industrial | Ecopack2 | - | - |
Marketing Status
Package
PowerSO-8
Grade
Industrial
RoHS Compliance Grade
Ecopack2
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | |||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
min | max | ||||||||||||||||||||||||||||||||||||||||||
STCS1PHR | Active | 1.0579 / 10k | Available at 4 distributors Distributor availability of STCS1PHR
Distributor reported inventory date: 4/30/2025 | | | | Buy from Distributor | | PowerSO-8 | Tape and Reel | PHILIPPINES | EAR99 | NEC | -40 | 150 | ||||||||||||||||||||||||||||
STCS1PUR | Active | 0.8828 / 10k | Available at 4 distributors Distributor availability of STCS1PUR
Distributor reported inventory date: 4/30/2025 | | | | Buy from Distributor | | QFN-8L P 0.5 mm | Tape and Reel | MALAYSIA | EAR99 | NEC | -40 | 150 |
STCS1PHR Active
Part Number:
STCS1PHR
Operating Temperature (°C)
Min:
-40
Max:
150
Farnell Element14
Stock
2331Min.Order
1MOUSER
Stock
13318Min.Order
1FUTURE
Stock
17500Min.Order
0DIGIKEY
Stock
7744Min.Order
1Distributor reported inventory date: 4/30/2025
Stock
Min.Order
STCS1PUR Active
Part Number:
STCS1PUR
Operating Temperature (°C)
Min:
-40
Max:
150
Farnell Element14
Stock
2540Min.Order
1MOUSER
Stock
4207Min.Order
1AVNET
Stock
3000Min.Order
0DIGIKEY
Stock
2144Min.Order
1Distributor reported inventory date: 4/30/2025
Stock
Min.Order
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors