AAT3190ITP-T1

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	DC DC Controller
Topology:	Switched Capacitor (Charge Pump)
Internal Switch(s):	No
Number of Outputs:	2
Voltage - Supply (Min):	2.7V
Voltage - Supply (Max):	5.5V
Voltage - Output:	±25V
Current - Output / Channel:	--
Frequency:	1MHz
Dimming:	--
Applications:	--
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	12-TFSOJ (0.094", 2.40mm Width)
Supplier Device Package:	12-TSOPJW

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Introduction

AAT3190ITP-T1 is a PMIC - LED Driver developed by AnalogicTech. It is suitable for backlighting applications like LCD displays, keyboards, and other LED lighting applications. It is similar to the other LED driver AAT3190ITP, but the T1 version provides a few extra features, including an adjustable switching frequency and support for dual string LED applications.

Features

AAT3190ITP-T1 offers an adjustable (dimming) current range of 5 to 40 mA, with a maximum current of 40 mA. The device supports PWM dimming and peak current management. It also has adjustable switching frequency, to help minimize audible noise and minimize interference with other systems. The device has a wide range of protections, including overvoltage protection, overtemperature protection, short-circuit protection, ESD protection, and current limit protection.

Applications

AAT3190ITP-T1 is primarily used in backlighting applications, such as LCD displays, keyboards, and other LED lighting applications. The adjustable current range allows it to be used in a variety of applications, while the adjustable switching frequency helps to minimize interference and audible noise. It is also suitable for dual string LED applications.

Working Principle

AAT3190ITP-T1 is designed to control LED lighting products using a combination of feedback and PWM dimming control. The device monitors the LED current and adjusts the duty cycle of the PWM signal accordingly, to provide a constant LED output current. The switching frequency is adjustable and can be set to minimize audible noise and interference with other systems. The device also offers protections to ensure safe operation, including overvoltage protection, overtemperature protection, short-circuit protection, ESD protection, and current limit protection.

Pros and Cons

AAT3190ITP-T1 has several advantages, such as adjustable current range, adjustable switching frequency, and support for dual string LED applications. It also offers a range of protections to ensure safe operation. The main disadvantage is that it is more expensive than other LED drivers.

Conclusion

AAT3190ITP-T1 is a PMIC - LED Driver developed by AnalogicTech. It is suitable for backlighting applications like LCD displays, keyboards, and other LED lighting applications. It offers adjustable current range, adjustable switching frequency, and support for dual string LED applications. It also offers a range of protections to ensure safe operation. The main disadvantage is that it is more expensive than other LED drivers.

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