A8503EECTR-T

A8503EECTR-T Datasheet

Allegro | Product | A8503 Ultra-Small WLED/RGB Driver for Medium Displays

Part	Datasheet
A8503EECTR-T	A8503EECTR-T (pdf)

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Allegro \| Product \| A8503 Ultra-Small WLED/RGB Driver for Medium Displays Home / Products / Part Numbers / A8503 A8503 Ultra-Small WLED/RGB Driver for Medium Displays Contact Sales for more information. z Active current sharing between LED strings for tight current matching and accuracy z Drive up to 10 series, 6 parallel LEDs, Vf = V max, If = 25 mA . z Boost converter with integrated 50 V DMOS z LED sinks rated for 25 mA z PWM dimming with LED duty cycle control z Open LED protection z Short LED string protection z Boost current limit, OTP and soft start. z Over Voltage Protection and open diode protection. z Input UVLO protection z Latch or Auto restart fault mode z PACKAGE 4 mm x 4 mm MLP-26 z LED backlight displays A8503 is a multi-output WLED/RGB driver for medium size display backlighting. The A8503 integrates a boost converter and 6 current-sinks to provide a WLED/RGB driver. It can work from single power supply to V. The boost converter can drive up to 60 LEDs at 20 mA per LED at 5 V battery voltage. The boost converter is constant frequency current mode converter. The integrated boost DMOS switch is rated for 50 V, 2 A. PWM dimming allows LED currents to be controlled in 500:1 ratio. A8503 provides protection against over voltage, open diode, open and short LED string, over temperature, pulse by pulse switch current limit and short circuit. With MODE pin low, IC latches on fault and can be re-enabled only by recycling input voltage Vin or toggling EN pin. When MODE pin connected to Vin, IC autorestart. Complete Part Numbers 12/12/2008 Allegro \| Product \| A8503 Ultra-Small WLED/RGB Driver for Medium Displays RoHS Part Composition/ Package Type Compliant RoHS Data Temperature Comments Samples A8503EECTR-T 26-lead QFN/MLP Yes view data -40 °C to 85 °C new Contact Marketing Representative Distributor Stock Check Stock Allegro's products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the failure of that life support device or system, or to affect the safety or effectiveness of that device or system. Copyright 2008 Allegro MicroSystems, Inc. • 115 Northeast Cutoff, Worcester, MA 01606 USA • Phone • Fax: 12/12/2008

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Allegro | Product | A8503 Ultra-Small WLED/RGB Driver for Medium Displays

Home / Products / Part Numbers / A8503

A8503 Ultra-Small WLED/RGB Driver for Medium Displays

Contact Sales for more information.
z Active current sharing between LED strings for tight current matching and accuracy z Drive up to 10 series, 6 parallel LEDs, Vf = V max, If = 25 mA . z Boost converter with integrated 50 V DMOS z LED sinks rated for 25 mA z PWM dimming with LED duty cycle control z Open LED protection z Short LED string protection z Boost current limit, OTP and soft start. z Over Voltage Protection and open diode protection. z Input UVLO protection z Latch or Auto restart fault mode z PACKAGE 4 mm x 4 mm MLP-26
z LED backlight displays

A8503 is a multi-output WLED/RGB driver for medium size display backlighting. The A8503 integrates a boost converter and 6 current-sinks to provide a WLED/RGB driver. It can work from single power supply to V. The boost converter can drive up to 60 LEDs at 20 mA per LED at 5 V battery voltage. The boost converter is constant frequency current mode converter. The integrated boost DMOS switch is rated for 50 V, 2 A.

PWM dimming allows LED currents to be controlled in 500:1 ratio.

A8503 provides protection against over voltage, open diode, open and short LED string, over temperature, pulse by pulse switch current limit and short circuit. With MODE pin low, IC latches on fault and can be re-enabled only by recycling input voltage Vin or toggling EN pin. When MODE pin connected to Vin, IC autorestart.

Complete Part Numbers
12/12/2008

Allegro | Product | A8503 Ultra-Small WLED/RGB Driver for Medium Displays

RoHS Part Composition/

Package Type Compliant RoHS Data

Temperature Comments Samples

A8503EECTR-T 26-lead QFN/MLP Yes
view data
-40 °C to 85 °C new

Contact Marketing Representative

Distributor Stock

Check Stock

Allegro's products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the failure of that life support device or system, or to affect the safety or effectiveness of that device or system.

Copyright 2008 Allegro MicroSystems, Inc.
• 115 Northeast Cutoff, Worcester, MA 01606 USA
• Phone
• Fax:
12/12/2008

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived A8503EECTR-T Datasheet file may be downloaded here without warranties.

Datasheet ID: A8503EECTR-T 516083