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PCA9622DR,118

PCA9622DR,118 Description

The PCA9622DR,118 from NXP Semiconductors is a 16-channel linear LED driver designed for precision backlighting and illumination control. Packaged in a 32-TSSOP and supplied in Tape & Reel (TR), this IC integrates PWM dimming with a 100kHz–1MHz frequency range, enabling high-resolution brightness adjustment. Operating from 2.3V to 5.5V, it delivers up to 40V output per channel, supporting 100mA constant current per LED string. Though marked Obsolete, it remains relevant for legacy designs requiring robust performance in backlight applications.

PCA9622DR,118 Features

• 16 Independent Outputs: Each channel drives up to 100mA, ideal for multi-LED arrays.
• Wide Voltage Range: 2.3V–5.5V input with 40V output tolerance, accommodating diverse power architectures.
• PWM Dimming: 100kHz–1MHz modulation for flicker-free brightness control.
• Integrated Switches: Eliminates external MOSFETs, reducing BOM complexity.
• High Efficiency: Linear topology ensures minimal EMI, suited for noise-sensitive environments.
• RoHS3 & REACH Compliant: Meets stringent environmental standards.

PCA9622DR,118 Applications

• LCD Backlighting: Precision control for TVs, monitors, and automotive displays.
• Architectural Lighting: Multi-zone dimming in low-voltage LED installations.
• Industrial Panels: Status indicators and backlighting for HMI interfaces.
• Retail Signage: Uniform illumination in segmented displays.

Conclusion of PCA9622DR,118

The PCA9622DR,118 excels in high-channel-count LED driving with its PWM dimming and wide voltage flexibility. While obsolete, its low-noise linear design and integrated switches make it a pragmatic choice for legacy or cost-sensitive backlight systems. Engineers valuing simplicity and performance in multi-LED applications may still leverage its capabilities despite newer alternatives.