ILD4120E6327XUMA1

ILD4120E6327XUMA1 Datasheet

1200mA step down - LED controller IC ILD4120

Part	Datasheet
ILD4120E6327XUMA1	ILD4120E6327XUMA1 (pdf)

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1200mA step down - LED controller IC ILD4120 Small Signal Discretes Edition 2009-07-06 Published by Infineon Technologies AG, 81726 München, Germany Infineon Technologies AG All Rights Reserved. Attention please! The information herein is given to describe certain components and shall not be considered as a guarantee of characteristics. Terms of delivery and rights to technical change reserved. We hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding circuits, descriptions and charts stated herein. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office Warnings Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a failure of such components 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. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered. ILD4120 1200mA step down - LED controller IC ILD4120, 1200mA step down - LED controller IC Target Datasheet ILD4120 1200mA step down - LED controller IC Bipolar Buck- converter LED Controller IC Bipolar Buck- converter LED Controller IC Features • Wide Input Voltage Range V 40 V • Internal Power Switch • Over voltage protection • Over current protection • Temperature shut down mechanism • Inherent Open- Circuit LED protection • Soft- Start capability • Low shut down current < 200 nA in operating voltage range • Maximum operating average LED output current 1200 mA • Multifunctional Enable Pin • Analog and PWM dimming possible • PWM control for LED brightness possible • Typical 3% output current accuracy • Minimum external component required • Package DSO-8 with exposed pad Applications • LED Controller for industrial applications • Universal Constant Current Source • Generell Illumination e.g. Halogen Replacement • Residential Architectural and Industrial Commercial Lighting for in- and outdoor • Signal and Marker Lights for Orientation or Navigation e.g. steps, exit ways, etc. The ILD4120 is a hysteretic buck LED controller IC for industrial applications realized in a bipolar IC technology. The LED Controller is capable to drive high current, high brightness LEDs up to 1200 mA. The IC incorporates a wide input voltage range, an internal power switch and the output current level can be adjusted with an external sense resistor. According to the multifunctional control pin the IC can be switched on and off by an external signal, which is also suitable to regulate brightness of the LEDs by PWM or analog dimming. Depending on the value of the switching inductor the switching frequency and the voltage ripple could be set. The precise internal bandgap stabilizes the circuit and provides stable current conditions over temperature range. Furthermore, over voltage protection and temperature shut down mechanism enforce the IC to protect attached LEDs. Additional features are included to protect the LED’s from overload, short circuit events as well as from over voltage. The LED’s can be also protected against thermal overload by thermally coupling the LED’s to the ILD4120. Target Datasheet EN 1 PWM 2 GND 3 ILD4120 1200mA step down - LED controller IC ILD4120 Buck LED Controller Vstab Vref Over Voltage Protection Vstab Vstab Vstab Vstab Vstab 7 Vsense 6 Vswitch GND 4 Figure 1 Block diagram Pin Definition

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1200mA step down - LED controller IC ILD4120

Small Signal Discretes

Edition 2009-07-06

Published by Infineon Technologies AG, 81726 München, Germany Infineon Technologies AG All Rights Reserved.

Attention please!

The information herein is given to describe certain components and shall not be considered as a guarantee of characteristics. Terms of delivery and rights to technical change reserved. We hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding circuits, descriptions and charts stated herein.

Information

For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office

Warnings

Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a failure of such components 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. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered.

ILD4120 1200mA step down - LED controller IC

ILD4120, 1200mA step down - LED controller IC

Target Datasheet

ILD4120 1200mA step down - LED controller IC

Bipolar Buck- converter LED Controller IC

Bipolar Buck- converter LED Controller IC

Features
• Wide Input Voltage Range V 40 V
• Internal Power Switch
• Over voltage protection
• Over current protection
• Temperature shut down mechanism
• Inherent Open- Circuit LED protection
• Soft- Start capability
• Low shut down current < 200 nA in operating voltage range
• Maximum operating average LED output current 1200 mA
• Multifunctional Enable Pin
• Analog and PWM dimming possible
• PWM control for LED brightness possible
• Typical 3% output current accuracy
• Minimum external component required
• Package DSO-8 with exposed pad

Applications
• LED Controller for industrial applications
• Universal Constant Current Source
• Generell Illumination e.g. Halogen Replacement
• Residential Architectural and Industrial Commercial Lighting for
in- and outdoor
• Signal and Marker Lights for Orientation or Navigation
e.g. steps, exit ways, etc.

The ILD4120 is a hysteretic buck LED controller IC for industrial applications realized in a bipolar IC technology. The LED Controller is capable to drive high current, high brightness LEDs up to 1200 mA.

The IC incorporates a wide input voltage range, an internal power switch and the output current level can be adjusted with an external sense resistor.

According to the multifunctional control pin the IC can be switched on and off by an external signal, which is also suitable to regulate brightness of the LEDs by PWM or analog dimming.

Depending on the value of the switching inductor the switching frequency and the voltage ripple could be set.

The precise internal bandgap stabilizes the circuit and provides stable current conditions over temperature range.

Furthermore, over voltage protection and temperature shut down mechanism enforce the IC to protect attached LEDs.

Additional features are included to protect the LED’s from overload, short circuit events as well as from over voltage. The LED’s can be also protected against thermal overload by thermally coupling the LED’s to the ILD4120.

Target Datasheet

EN 1 PWM 2 GND 3

ILD4120 1200mA step down - LED controller IC

ILD4120 Buck LED Controller

Vstab

Vref

Over Voltage Protection Vstab

Vstab

Vstab

Vstab

Vstab
7 Vsense 6 Vswitch

GND 4

Figure 1 Block diagram Pin Definition

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 ILD4120E6327XUMA1 Datasheet file may be downloaded here without warranties.

Datasheet ID: ILD4120E6327XUMA1 638099