产品概述
描述
The HVLED001 is an enhanced peak current mode controller capable of controlling mainly high power factor (HPF) flyback or buck-boost topologies in LED drivers having an output power up to 150 W. Some other topologies, like buck, boost and SEPIC can also be implemented.
ST’s innovative high voltage technology allows direct connection of the HVLED001 to the input voltage in order to both start up the device and monitor the input voltage without the need for external components.
Advanced features are embedded to control either the output voltage or output current precisely and reliably using a reduced number of components, mainly passive. Startup and light-load conditions are managed by dedicated operating schemes to improve the quality of output variable regulation in the final application. Abnormal conditions such as open circuit, output short-circuit, input overvoltage/undervoltage, and circuit failures such as open loop and overcurrent of the main switch are effectively controlled.
A smart auto-recover timer (ART) function is built in to guarantee automatic application recovery, without loss of reliability.
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所有功能
- Quasi-resonant (QR) topology
- Primary side regulation of output voltage
- Direct optocoupler connection for current loop regulation with feedback disconnection detection and disable
- 800 V high voltage start-up
- High power factor and low THD in universal range
- High efficiency and output stability in wide voltage and current range
- Low start-up and quiescent current
- Programmable minimum off time
- Integrated input voltage detection for high power factor capability and protection triggering
- Latch free device guarantee by smart autoreload timer (ART)
- 0 - 10 and PWM dimming compatible
- Remote control pin
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意法半导体 - HVLED001
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