AX2005/A-3A/2APWM Control LED Driver with internal SwitchPDF文档

GENERAL DESCRIPTION
    The AX2005/A is a high voltage step-down converter designed for driving up to 10 series white LEDs from a 40V system input. The total LED driving current up to 3A (AX2005) / 2A(AX2005A), which is measured through an external current sense resistor. Its low 200mV feedback voltage reduces power loss and improves efficiency. The OVP pin monitors the output voltage and turns off the converter if an over-voltage condition is present due to an open circuit condition. The AX2005 includes current limit, short circuit protection and thermal shutdown protection preventing damage.
    AX2005/A provides high power, high efficiency, and excellent transient characteristics.The PWM control circuit is able to the duty ratio linearly from 0 up to 100%. Since this converter can accommodate an input voltage up to 40V, it is also suitable for the operation via an AC adapter.

FEATURES
- Input voltage：8V to 40V
- Output voltage is up to 38V
- LED Backlight and High Power LED Application
- Duty ratio：0% to 100% PWM control
- LED driving current：
AX2005: Output current up to 3A
AX2005A: Output current up to 2A
- Enable/Disable function with soft start time control.
- Current Limit (CL), Thermal Shutdown and Short Circuit Protections (SCP).
- Over Voltage Protection (OVP)
- Built-in internal SW P-channel MOS.
- SOP-8L-EP Pb-Free package.

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产品分类 
 DC-DC Converter/Controller
 AC-DC Converter/Controller
 Synchronous Rectifier IC
 LED Lighting Driver
 LED Backlighting Driver
 Linera Regulators(LDO)
 DDR Bus Termination
 Li-Ion Battery Charger
 Power Audio Amplifier
 Reset IC
 Operational Amplifiers
 Reference Regulator Shunt
 HALL Effect Sensor
 DC Brushless Motor Driver
 TVS ESD Protection
 Power Mosfet
 Power Management Unit
 EEPROM
 Other(Diode)

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