ANX6934, 8-channel LED driver, brand new and original, in-store pickup or same-day delivery.

ANX6934

8-channel LED driver

feature

Wide input range from 2.7V to 24V

Integrated 2.8A/40V Boost FET Gateway

Package Proof and Soft Start

Crystal Current Receiver

Channel current up to 60mA

PWM dimming from 100Hz to 30kHz

2.5% current matching

3% current accuracy

Protect:

LED string open/short detection

Over voltage protection

Overcurrent Protection

Over temperature protection

Thin 3x3 mm 16WQFN package core

Compliant with Rohs and 10% (Pb)-

application

Laptop/Laptop/Tablet/Ultrabook

Car Navigator/Entertainment Open

Variable function lights

ANX6934AAQX WQFN-16L, 3x3

illustrate:

The ANX6934 is a highly white LED driver designed for thin film analysis (TFT) display (LCD) backlighting.

The chip can drive up to 8 strings of LEDs up to 10 strings of LEDs. With a wide string input voltage range of 2.7V to 24V, the ANX6934 is ideal for applications ranging from single-cell lithium-ion tablet PCs to full-size notebook PCs. The ANX6934 has a combined high efficiency

current mode boost. eight

Integrated current sink provides high

Precision Current Regulation and Matching

LED current up to 60mA. feedback circuit

sense LED current sink voltage and

Compensate for LED non-uniformity

The forward voltage accumulated on the LED string.

In order to output the power, the output voltage

by monitoring

LED string. Unused LED channels can be

Disable by connecting the channel to Disable.

ANX6934 controls LED dimming by

Pulse Width Modulation (PWM) method.

LED current turns on and off in response to

Vocabulary duty cycle and frequency

PWM.

ANX6934 has multiple protection functions

Features include Over Current Protection (OCP),

Over Protection (OTP), Temperature

Over Voltage Protection (OVP) and LED Strings

Open and short circuit detection.

If enabled, soft-start will enable the function to gradually output the voltage, avoiding voltage overshoot and inrush current. If you open a string,

The open LED detection circuit detects this fault and all other current sinks can continue to operate normally.

ANX6934

8 – Channel LED Driver

FEATURES

Wide input range from 2.7V to 24V

Integrated 2.8A/40V boost converter FET

Built-in loop compensation and_soft-start

Eight programmable current sinks

Current up to 60mA per channel

PWM dimming from 100Hz to 30kHz

2.5%_current matching

3%_current accuracy

Protection:

LED string open/short detection

Adjustable overvoltage protection

Over-current protection

Over-temperature protection

Thin 3x3 mm 16-lead WQFN package

Rohs compliant and_100%_Lead(Pb)-

Free/Green

APPLICATIONS

Notebook/Ultrabook/Tablet PC Display

Backlight

Car Navigator/Entertainment Display

Backlight

Flash light or utility light

ANX6934AAQX WQFN-16L, 3x3

DESCRIPTION

The ANX6934 is a highly compact white LED

driver especially optimized for thin-film transistor

(TFT) liquid crystal displays (LCDs) backlight.

The chip can drive up to eight strings of LEDs

and_up to ten LEDs in series per string. Wide

input voltage range from 2.7V to 24V makes

ANX6934 well suited for applications ranging

from a one-cell lithium-ion battery tablet PC to a

full-size notebook PC.

The ANX6934 offers a built-in high efficiency

current mode boost converter. The eight

integrated current sink regulators provide high

precision current regulation and_matching for

LED currents up to 60mA. The feedback loop

senses LED current sink voltages and_

compensates for the non-uniformity of the LED

forward accumulated voltage on the LED strings.

To minimize the power loss, the output voltage

of the boost converter is automatically adjusted

by monitoring the highest forward voltage of the

LED strings. An unused LED channel can be

disabled by connecting the channel to ground.

The ANX6934 controls LED dimming through

the pulse-width-modulation (PWM) method. The

LED current is turned on and_off in response to

the duty cycle and_frequency applied at the

PWM pin.

The ANX6934 features several protection

functions including overcurrent protection (OCP),

overtemperature protection (OTP), adjustable

overvoltage protection (OVP), and_LED string

open and_short detection. Once the device is

turned on, the soft-start function raises the

output voltage gradually to avoid voltage overshoot and_inrush current. If one string opens,

the LED open detection circuit detects this fault

and_excludes this current sink from the regulation loop. All other strings continue to work normally.