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Product Detailed Parameters
- Description：IC LED DRIVER LINEAR I2C 64QFN
- Series：-
- Mfr：ams-OSRAM USA INC.
- Package：Tape & Reel (TR)
- Type：Linear
- Topology：-
- Internal Switch(s)：No
- Number of Outputs：16
- Voltage - Supply (Min)：-
- Voltage - Supply (Max)：-
- Voltage - Output：0.4V ~ 50V
- Current - Output / Channel：-
- Frequency：-
- Dimming：I2C, SPI
- Applications：Backlight
- Operating Temperature：-
- Mounting Type：Surface Mount
- Package / Case：64-VFQFN Exposed Pad
- Supplier Device Package：64-QFN (9x9)
- Grade：-
- Qualification：-
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Overview
The AS3693B-ZQFT is a 16-channel high-precision LED driver IC designed for LCD TV backlight panels. It integrates PWM generators with programmable delay, period, and duty cycle to support local dimming and scan dimming. The device features three configurable dynamic power feedback circuits suitable for white and RGB backlights. Built-in safety mechanisms include thermal shutdown and open/short LED detection. All parameters are programmable via I2C or SPI interfaces.
Feature Summary
- Integrates 16 independent PWM generators for local and scan dimming control
- Supports synchronization with TV picture via external clock inputs
- Includes three configurable dynamic power feedback circuits for flexible backlight types
- Provides built-in thermal shutdown and LED fault detection
Applications
- LCD TV backlight panels
- White LED backlight systems
- RGB backlight applications
Procurement Notes
Verify the specific suffix ZQFT against official datasheets to confirm package type and tape/reel specifications. Confirm current availability status as end-of-life notifications may apply. Ensure compatibility with required I2C or SPI interface configurations before procurement.
Selection Notes
Select this component for designs requiring precise channel-to-channel current accuracy and advanced dimming capabilities. Verify that the QFN-48 package fits the PCB layout constraints. Ensure the design supports the required operating temperature range and voltage levels for the target application.
Part Context
This part belongs to the AS3693 series of LED drivers from ams OSRAM. It is specifically engineered for high-end display applications where uniformity and dynamic lighting effects are critical. The series typically offers multiple variants differentiated by package and output configurations.
Replacement Considerations
Check for direct substitutes within the AS3693 family such as the AS3693A variant. Verify pinout compatibility and electrical parameter equivalence before substitution. Consult official obsolescence notices for lifecycle management.
