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PA5711

Protekdevices
Part Number PA5711
Manufacturer Protekdevices
Description High Voltage LED Driver
Published Mar 22, 2012
Detailed Description PA5711 ANALOG PRODUCTS DIVISION FEATURES         11V to 480V Input Voltage Range. Over 95% Efficiency. Drives fr...
Datasheet PDF File PA5711 PDF File

PA5711
PA5711

Overview
PA5711 ANALOG PRODUCTS DIVISION FEATURES         11V to 480V Input Voltage Range.
Over 95% Efficiency.
Drives from 1 to hundreds of LED’s in Serial and Parallel combinations.
Constant LED Drive current.
Linear or PWM luminance dimming control.
Light sense and Motion detection inputs to control the LED’s.
Resistor Programmable Oscillator Frequency.
QFN-16 RoHs Compliant Package.
High Voltage LED Driver GENERAL DESCRIPTION The PA5711 is a High-Efficiency LED driver with multiple dimming options that include Pulse Width Modulation (PWM), Linear dimming (LD), Motion Detection (MD) and Light sense (LS) inputs.
PA5711 features a direct gate driver control through an active high enable pin.
It has an internal oscillator whose frequency can be set externally through a resistor.
The PA5711 in fly-back mode can be used as a current controlled LED driver (Isolated), driving an LED load at fixed current from a few mA to over 1.
4A.
The PA5711 allows the users to introduce the leading edge blanking upon their desired delay requirements, also this can be used to control the Duty cycle of the driver.
The LD pin allows the users to set the threshold beneath the pre-set 280mV, for smaller duty cycle and reduced dissipation across the CS resistors.
The PA5711 has a PWM dimming option that through an externally programmed control signal, with duty ratio 0-100% and a frequency of a few Kilo-hertz, can control the LED brightness.
APPLICATIONS         General Illumination Displays Industrial and Decorative LED Lighting.
Automotive applications.
DC/DC or AC/DC LED driver applications.
Constant current source.
SMPS switching controller.
LED back lighting.
Security, Street and Parking garage lighting.
PA5711 BLOCK DIAGRAM VIN www.
DataSheet.
co.
kr REXT Voltage Regulator VDD 280mV + + PWM Controller Gate Driver ROSC Oscillator Gate CS LD PWM MD LS EN GND ORDERING INFORMATION Temperature Range -40 to 85 °C Package QFN-16 Part Number PA5711-T7 Figure 1.
Block diagram ...


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