Skyworks Solutions, Inc.: LCD Driver: AAT3122: AAT3122ITP-T1

Power Electronics Products from CDI

AAT3122ITP-T1
High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications
Manufacturer: Skyworks Solutions, Inc.
Status: Standard
Data Sheet: AAT3122ITP-T1 Data Sheet
RoHS Compliance: Skyworks Solutions, Inc., AAT3122ITP-T1, LCD Driver, High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications (Rohs Compliant), Component Distributors Inc. (CDI) Yes
Specifications
Type:
White LED Drivers
Topology:
Charge Pump
Iout Max per Channel:
132 mA
# of LEDs:
6
# LED Channels:
1
Vin Min:
2.7 V
Vin Max:
5.5 V
IQ (typ):
1800 µA
Interface:
S2Cwire
Peak Efficiency (%):
93
Package:
TSOPJW 12L, 3 x 2.85 x 1.02
Also Available
Part FunctionPart NumberDescription
Evaluation Board AAT3122ITP-DB1 Skyworks Solutions, Inc. Demo board for AAT3122ITP-T1
The AAT3122 is a low noise, constant frequency charge pump DC/DC converter that uses a dual mode load switch (1X) and fractional (1.5X) conversion to increase efficiency in white LED applications. With input voltages ranging from 2.7V to 5.5V, the device can produce an output current of up to 120mA. A low external parts count (two 1µF flying capacitors and two small bypass capacitors at V IN and OUT) makes the AAT3122 ideally suited for small battery-powered applications. AnalogicTech’s Simple Serial Control™ (S²Cwire™) interface is used to enable, disable, and set the LED drive current with a 32-level logarithmic scale LED brightness control. The AAT3122 has a thermal management system to protect the device in the event of a short circuit condition on any of the output pins. Built-in soft-start circuitry prevents excessive inrush current during start-up. High switching frequency enables the use of small external capacitors. A low shutdown current feature disconnects the load from V IN and reduces quiescent current to less than 1µA. The AAT3122 provides a single current source output that can be used to drive up to six LEDs at 20mA each. The AAT3122 is available in a TSOPJW-12 package.
Pricing
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Availability
Call 1-800-777-7334 for Availability or Get a Quote
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Package Format
DescriptionUnits Per FormatAvailable
(T/R) 3000 0