Microchip HV9963NG-G

DC DC 控制器8V40V

Overview

The HV9963NG-G is a current mode control LED driver IC designed to control single switch PWM converters (buck, boost, buck-boost or SEPIC) in a constant frequency mode. The controller uses a peak current-mode control scheme (with programmable slope compensation) and includes an internal transconductance amplifier to accurately control the output current over all line and load conditions. Multiple HV9963s can be synchronized to each other or to an external clock using the SYNC pin. The IC also provides a disconnect switch gate drive output, which can be used to disconnect the LEDs in case of a fault condition using an external disconnect FET. The 10V external FET drivers allow the use of standard level FETs. The low voltage 5.0V AVDD is used to power the internal logic and also acts as a reference voltage to set the current level.The HV9963NG-G includes an enhanced PWM dimming logic (patent pending) that enables very high PWM dimming ratios.The HV9963NG-G also provides a TTL compatible, low-frequency PWM dimming input that can accept an external control signal with a duty ratio of 0-100% and a frequency of up to a few tens of kilohertz.

Features

Tube Package
Available in the 16-SOIC (0.154, 3.90mm Width) package
Operating temperature of -40°C~125°C TA
Frequency of 100kHz 520kHz
Supply voltage of 24V
Operating with the supply voltage of 40V

Surface Mount Mounting Type

Applications

There are a lot of Microchip Technology
HV9963NG-G LED Driver ICs applications.

• General lighting
• Down lighting
• Architectural lighting
• Street lighting
• Stage and Studio lighting
• Refrigeration lighting
• Portable lighting
• Gallery lighting
• Museum lighting
• High-end retail lighting