Datasheet Diodes AL3353

ManufacturerDiodes
SeriesAL3353

High Performance Boost LED Controller

Datasheets

Datasheet AL3353
PDF, 368 Kb, Language: en, File uploaded: May 6, 2019, Pages: 15
High Performance Boost LED Controller
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Detailed Description

The AL3353 is a highly integrated and cost effective Light Emitting Diode (LED) controller optimized for LCD monitor and LCD TV backlighting application.

It provides a high performance LED backlight solution with low BOM cost.

The AL3353 contains a PWM boost driver which uses current mode control and fixed frequency operation to regulate the LED current.The LED current is sensed through an external current sense resistor.The voltage across the sensing resistor is compared with reference level of 400mV, the error is amplified to control the pulse width of the power switch thus to regulate the current flowing the LED.

The AL3353 offers PWM to analog dimming mode for a wide range of dimming control.

The AL3353 has comprehensive protection features and it is available in the SO-8 package.

Packaging

AL3353S-13
PackageSO-8

Parametrics

Parameters / ModelsAL3353S-13
DimmingPWM to Analog
Efficiency94 %
FunctionHIGH PERFORMANCE BOOST LED CONTROLLER
Maximum Input Voltage40 V
Maximum Output Current per ChannelExternal MOSFET mA
Maximum Output VoltageExternal MOSFET V
Minimum Input Voltage9 V
Number of Regulated Output Channels1
OVPYes
Operating Temperature Range, °C-40 to 105 °
Quiescent Current2 mA
SW RDS(ON)External MOSFET Ω
Soft StartYes
Standby Quiescent Current130 µA
Switching Frequency0.12 MHz
Typical Over-Current Protection Current500/RCS mA
VFB0.4 V

Model Line

Series: AL3353 (1)

Manufacturer's Classification