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STMicroelectronics - 2A max constant current LED driver

Numéro de référence STCS2A
Description 2A max constant current LED driver
Fabricant STMicroelectronics 
Logo STMicroelectronics 





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STCS2A fiche technique
STCS2A
2 A max constant current LED driver
Features
Up to 40 V input voltage
Less than 0.5 V voltage overhead
Up to 2 A output current
PWM dimming pin
Shutdown pin
LED disconnection diagnostic
Slope control with external cap
Applications
LED constant current supplying for varying
input voltages
Low voltage lighting
Small appliances LED lighting
Car LED lights
Description
The STCS2A 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
10
1
PowerSO-10
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 2 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.
Table 1. Device summary
Order code
STCS2ASPR
July 2008
Package
PowerSO-10
Rev 3
Packaging
600 parts per reel
1/18
www.st.com
18

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