AS3822-ZQFT

Overview

The AS3822-ZQFT is an LED driver IC from ams OSRAM designed for linear dimming applications. It features an SPI interface for control and provides eight output channels. The device operates within a supply voltage range of 2.7V to 5.5V and supports output currents up to 40mA per channel. It is housed in a 32-TQFP package with dimensions of 7x7 mm. The component is rated for operation between -40°C and +85°C ambient temperature.

Feature Summary

• Supports linear dimming via SPI interface
• Provides eight independent output channels
• Integrated linear regulation for current control

Applications

• LED lighting drivers
• General illumination systems

Procurement Notes

Verify the specific suffix ZQFT against official datasheets to confirm package type and tape-and-reel specifications. Ensure compatibility with system voltage requirements, as the device operates between 2.7V and 5.5V. Confirm thermal management capabilities for the TQFP-32 package under expected load conditions. Check for automotive or industrial qualification if required by the end application.

Selection Notes

Select this component when an SPI-controlled, multi-channel LED driver is required for linear dimming applications. Consider the 32-TQFP package size for board space constraints. Verify that the 40mA per channel output current meets the LED array requirements. Ensure the operating temperature range aligns with the environmental conditions of the target installation.

Part Context

The AS3822 series belongs to ams OSRAM's portfolio of LED lighting drivers. These components are engineered for efficient light control in various illumination setups. The ZQFT designation indicates a specific surface-mount packaging variant suitable for automated assembly processes in manufacturing environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official ams OSRAM resources for cross-reference data before substituting.