STMicroelectronics, STCS1APHR

Product overview and Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

The STCS1A 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 external capacitor allows setting the slope for the current rise from tens of microseconds to tens of milliseconds allowing reduction of EMI.
An open-drain pin output provides information on load disconnection condition.

Slope control with external cap
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
LED constant current supplying for varying input voltages
Low voltage lighting
Small appliances LED lighting
Car LED lights

Attribute Value
Mounting Type Surface Mount
Package Type SO
Pin Count 8
Typical Operating Supply Voltage 4.5 → 40 V
Dimensions 5 x 4 x 1.55mm
Height 1.55mm
Length 5mm
Maximum Operating Temperature +150 °C
Minimum Operating Temperature -40 °C
Maximum Frequency 50kHz
Width 4mm
2500 In stock for delivery within 3 working days
Price Each (On a Reel of 2500)
HK$ 9.41
(exc. GST)
Per unit
Per Reel*
2500 +
*price indicative
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