AX2005/A-3A/2APWM Control LED Driver with internal Switch
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GENERAL DCRIPTION
The AX2005/A is a high voltage step-down converter digned for driving up to 10 seri 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 ristor. Its low 200mV feedback voltage reduc power loss and improv efficiency. The OVP pin monitors the output voltage and turns off the converter if an over-voltage condition is prent due to an open circuit condition. The AX2005 includ current limit, short circuit protection and thermal shutdown protection preventing damage.
AX2005/A provid 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.
FEATUR
- 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
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