Clare CPC9909
The CPC9909 is a low cost, high-efficiency, offline, high-brightness (HB) LED driver manufactured using Clare’s high voltage BCDMOS on SOI process. This driver has an internal regulator that allows it to operate from 8VDC to 550VDC . This wide input operating voltage range enables the driver to be used in a broad range of HB LED applications.FEATURES
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● 8VDC to 550VDC Input Voltage Range >90% Efficiency Stable Operation at >50% Duty Cycle Drives Multiple LEDs in Series/Parallel Regulated LED Current Linear or PWM Brightness Control Inputs Resistor-Programmable Minimum Off-Time SOIC-8 RoHS Compliant Package Buck or Boost Configuration CPC9909
DESCRIPTION
The CPC9909 features pulse frequency modulation (PFM) with a constant peak-current control scheme. This regulation scheme is inherently stable, allowing the driver to be operated above 50% duty cycle without open loop instability or sub-harmonic oscillations. LED dimming can be implemented by applying a small DC voltage to the LD pin, or by applying a low frequency PWM signal to the PWMD pin. The CPC9909 is available in a standard 8-lead SOIC package and a thermally enhanced 8-lead SOIC package with an exposed thermal pad (EP).APPLICATIONS
● Flat-Panel Display RGB Backlighting● Signage and Decorative LED Lighting
● DC/DC or AC/DC LED Driver
APPLICATIONS
Ord...