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STCS1_08 Datasheet

  • STCS1_08

  • 1.5 A max constant current LED driver

  • 17頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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STCS1
1.5 A max constant current LED driver
Features
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Up to 40 V input voltage
Less than 0.5 V voltage overhead
Up to 1.5 A output current
PWM dimming pin
Shutdown pin
LED disconnection diagnostic
DFN8 (3x3 mm)
PowerSO-8
Applications
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Supplying LEDs with constant current for
varying input voltages
Low voltage lighting
Small appliance LED lighting
Car LED lights
The current is set with external resistor up to 1.5
A with a 鹵 10 % precision; a dedicated pin allows
implementing PWM dimming.
An open-drain pin output provides information on
load disconnection condition.
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.
Table 1.
Device summary
Order codes
STCS1PUR
STCS1PHR
Packages
DFN8 (3 x 3 mm)
PowerSO-8
Packaging
3000 parts per reel
2500 parts per reel
July 2008
Rev 8
1/17
www.st.com
17

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