Advanced Analog Technology AAT1614
AAT1614 is a LED driver that consists of a Boost converter with a 4-channel current regulator. The device allows an input voltage range from 3V to 24V, thus suitable for applications in tablet and notebook backlight. The internal current mode Boost regulator provides the LED drive voltage.| Part No. | AAT1614 |
|---|---|
| Datasheet | AAT1614 Download |
| Manufacturer |  Advanced Analog Technology |
| Description | WHITE LEDS BACKLIGHT DRIVER |
| Buy | Stock & Price |
FEATURES
GENERAL DESCRIPTION
● 3V to 24V Input Supply Voltage Range● Current Mode Boost Regulator for VLED
● Built-In 40V, 2.5A, 0.2Ω N-MOSFET
● 500kHz~2MHz Adjustable Switching Frequency
● Build-in Soft-Start Time
● Adjustable OVP Voltage Level
● 4 Channel LED Current Sink Controller
● Adjustable LED Current Up to 40mA
● ±3% Current Accuracy
● ±2% Current Matching
● PWM Dimming Frequency 120Hz~30kHz
● PWM Dimming Control
● Protection
● Input Under-Voltage Lockout (UVLO)
● Over Voltage Protection (OVP)
● WLED Open Protection
● Over Temperature Protection (OTP)
● WQFN 16-3X3X0.75 Package Available
APPLICATIONS
● Tablet LCD Panel Backlight● Notebook LCD Panel Backlight This Boost integrates a 40V, 0.2Ω power NMOS which allows the converter to drive up to 40V maximum. For system optimization, the soft-start is built in to prevent output overshoots and inrushes, the switching frequency can be programmed from 500kHz to 2MHz using an external resistor and the over voltage protection threshold are also adjustable via external components.
