Industrial, outdoor, and residential LED lighting systems need different arrangements of electronic components. Block diagrams show how Littelfuse
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High-voltage AC mains powered high brightness LED Driver ICs
Our high-efficiency, high-brightness (HB) LED drivers are manufactured in a high voltage BCDMOS on SOI process. The wide input operating voltage range enables these devices to be used in a broad range of HB LED applications.
CPC9909 enables operation from 8VDC to 550VDC. The device 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.
MXHV9910 operates from 8VDC to 450VDC. The device features a fixed-frequency, peak-current control method, which provides an ideal solution for driving multiple LEDs in series and in parallel.
With both devices 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.
- High AC mains input voltage range.
- Supports linear and PWM brightness control.
- Enables >90% power conversion efficiency.
- High AC mains input voltage range.
- Supports linear and PWM brightness control.
- Enables >90% power conversion efficiency.
High Voltage LED Driver ICs Parts
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| 8 - 550 | >90 | 8-pin: SOIC, Power SOIC | |||||
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High Voltage LED Driver ICs Applications
LED Lighting
