Overview
The STCS1APHR, produced by STMicroelectronics, is a BiCMOS constant current source designed to provide a precise constant current from a varying input voltage source. This component is particularly useful for driving LEDs in low-voltage applications, such as those operating at 5 V, 12 V, or 24 V. It offers benefits in terms of precision, integration, and reliability compared to discrete component solutions.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage | Up to 40 V |
| Output Current | Up to 1.5 A |
| Voltage Overhead | Less than 0.5 V |
| Current Precision | ± 10 % |
| Package | PowerSO-8, QFN-8L P 0.5 mm |
| Grade | Industrial |
| RoHS Compliance | Ecopack2 |
| Operating Temperature (°C) | -40 to 125 |
Key Features
- LED disconnection diagnostic
- PWM dimming capability through a dedicated pin
- Shutdown pin for power management
- Open-drain pin output for load disconnection indication
- High precision constant current output set by an external resistor
Applications
The STCS1APHR is recommended for various industrial applications, particularly those involving LED lighting. It is suitable for use in low-voltage LED driver systems, such as those found in automotive, consumer electronics, and general lighting solutions.
Q & A
- What is the maximum input voltage for the STCS1APHR? The maximum input voltage is up to 40 V.
- What is the maximum output current of the STCS1APHR? The maximum output current is up to 1.5 A.
- How is the current precision of the STCS1APHR? The current precision is ± 10 %.
- What packages are available for the STCS1APHR? The component is available in PowerSO-8 and QFN-8L P 0.5 mm packages.
- Does the STCS1APHR support PWM dimming? Yes, it supports PWM dimming through a dedicated pin.
- What is the operating temperature range of the STCS1APHR? The operating temperature range is from -40°C to 125°C.
- Is the STCS1APHR RoHS compliant? Yes, it is RoHS compliant with an Ecopack2 grade.
- What is the voltage overhead of the STCS1APHR? The voltage overhead is less than 0.5 V.
- Does the STCS1APHR have a shutdown feature? Yes, it has a shutdown pin for power management.
- How is load disconnection indicated in the STCS1APHR? Load disconnection is indicated through an open-drain pin output.
