MIC3291-25YD6-TR

Voltage - Output:	--
Base Part Number:	MIC3291
Supplier Device Package:	TSOT-23-6
Package / Case:	SOT-23-6 Thin, TSOT-23-6
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Applications:	Backlight
Dimming:	Single-Wire
Frequency:	1.2MHz
Current - Output / Channel:	1.2A (Switch)
Series:	--
Voltage - Supply (Max):	6.5V
Voltage - Supply (Min):	2.5V
Number of Outputs:	1
Internal Switch(s):	Yes
Topology:	Step-Up (Boost)
Type:	DC DC Regulator
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction of MIC3291-25YD6-TR

The MIC3291-25YD6-TR is an advanced LED driver integrated circuit (IC) used in PMIC systems. Developed by Microchip Technology, this semiconductor product is suitable for driving up to 10 LED channels at an input voltage of 3.2V to 5.5V. It provides up to 25mA at each of its 10 channels, making it an ideal solutions for designers dealing with up to 10 LED channels. It is easy to use and simple to implement with system design, and also offers high efficiency and low power dissipation. This makes it an ideal choice for applications such as LED strip lighting, LED backlighting, and LED edge lighting.

Features and Benefits of MIC3291-25YD6-TR

The MIC3291-25YD6-TR LED driver is a compact IC that is suitable for small form factor designs. It allows for the configuration of each LED channel for constant current or constant voltage brightness control. This allows for customization according to the application. It is equipped with open drain NPN transistors, providing fast switching times and low power dissipation. It eliminates the need for a bootstrap circuit, thus greatly reducing overall system cost.This microcontroller also integrates highly reliable system protection features including a thermal temperature alarm, voltage under-voltage lockout, and overtemperature protection. It also offers fixed frequency control with pre-defined pulse widths and frequency, enabling fast and simple setup. The MIC3291-25YD6-TR device also offers advanced current level control for each LED channel for improved system performance and greater control. This driver IC is also housed in low profile uSLIC packages, making it suitable for use in design requiring high density and integration. Additionally, this IC is RoHS compliant and is offered in a wide range of packages to suit customer requirements.

Applications of MIC3291-25YD6-TR

The MIC3291-25YD6-TR LED driver IC is suitable for a range of LED lighting and automotive applications. Applications where LED lighting has become commonplace include, LED light strips, computers, home appliances and industrial lighting applications.The MIC3291-25YD6-TR can be used to create controllable LED backlighting, ambient lighting and even edge lit displays. Additionally, this device can be used with automotive and commercial lighting applications, such as automotive tail-light, headlight and signal light applications.

Working Principle of MIC3291-25YD6-TR

The MIC3291-25YD6-TR uses an integrated switching primary regulator to provide an output current of up to 25mA per channel. This enables the control of up to 10 LED channels. It features open drain NPN transistors, providing fast switching time and ultra low power dissipation. It provide both constant current and constant voltage control for each channel and also features advanced current level control for improved system performance and comprehensive control.To reduce the system cost, the MIC3291-25YD6-TR eliminates the need for a bootstrap circuit and provide these functions through its circuit protection features. These include, thermal temperature alarm, voltage under-voltage lockout, overtemperature protection and system soft start up.

Conclusion

The MIC3291-25YD6-TR LED driver IC is an advanced IC suitable for charge driving expensive LED lighting applications. It offers the ability to control up to 10 LED channels with an output current of up to 25mA. It is equipped with open drain NPN transistors and advanced current level control for improved system performance. Furthermore, this LED driver IC is easy to implement for system design and is housed in low profile uSLIC packages. It is also RoHS compliant and suitable for automotive and commercial LED lighting applications.

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