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Product Detailed Parameters
- Description：IC LED DRVR LIN I2C 70MA 64TQFP
- Series：-
- Mfr：ams-OSRAM USA INC.
- Package：Tape & Reel (TR)
- Type：Linear
- Topology：-
- Internal Switch(s)：Yes
- Number of Outputs：16
- Voltage - Supply (Min)：-
- Voltage - Supply (Max)：-
- Voltage - Output：0.4V ~ 50V
- Current - Output / Channel：70mA
- Frequency：-
- Dimming：I2C, SPI
- Applications：Backlight
- Operating Temperature：-20°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：64-TQFP Exposed Pad
- Supplier Device Package：64-TQFP-EP (10x10)
- Grade：-
- Qualification：-
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Overview
The AS3693A-ZTQT is a 16-channel high-precision LED driver designed for LCD TV backlight panels. It integrates 16 independent 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 signals via external clock inputs
- Includes configurable dynamic power feedback for white and RGB applications
- Provides built-in thermal shutdown and LED fault detection
Applications
- LCD TV backlight panel construction
- White LED backlight systems
- RGB backlight systems
Procurement Notes
Verify the specific suffix ZTQT against official manufacturer documentation to confirm package type and tape-and-reel specifications. Confirm current availability status as product lifecycles may change. Ensure compatibility with required I2C or SPI interface protocols before procurement.
Selection Notes
Select this component for designs requiring precise per-channel PWM control in LCD backlighting. Evaluate the need for 16 channels and dynamic power feedback capabilities. Consider the QFN48 package constraints and thermal management requirements for high-current operation.
Part Context
This part belongs to the AS3693 series of LED lighting drivers manufactured by ams OSRAM (formerly ams AG). The series is engineered for high-precision backlighting applications in consumer electronics, specifically targeting LCD television sets where synchronized dimming is critical.
FAQ
How does the AS3693A handle LED faults?
The device includes built-in safety features that detect open and short LED conditions.
Can the PWM parameters be adjusted?
Yes, the delay, period, and duty cycle of the 16 independent PWM generators are programmable via I2C or SPI interfaces.
