STCS1APUR Ver la hoja de datos (PDF) - STMicroelectronics

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STCS1APUR

1.5 A max constant current LED driver

STMicroelectronics 

STCS1A

1.5 A max constant current LED driver

Features

■ 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

■ 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 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.

DFN8 (3 x 3 mm)

Power SO-8

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.

Table 1. Device summary

Order codes

STCS1APUR

STCS1APHR

July 2008

Packages

DFN8 (3 x 3 mm)

Power SO-8

Rev 2

Packaging

3000 parts per reel

2500 parts per reel

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