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Product Detailed Parameters
- Description：IC LED DRIVER OFFL TRIAC 16SOIC
- Series：-
- Mfr：Cirrus Logic Inc.
- Package：Tube
- Type：AC DC Offline Switcher
- Topology：Step-Down (Buck)
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：11V
- Voltage - Supply (Max)：17V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：-
- Dimming：Triac
- Applications：Lighting
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOIC
- Grade：-
- Qualification：-
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Overview
The CS1612A-FSZ is an AC-DC offline LED driver IC from Cirrus Logic, designed for single-output applications. It utilizes a step-down (buck) topology and supports Triac dimming functionality. The device operates within a supply voltage range of 17 V to 17 V and features a switching frequency of 200 kHz. It is housed in a 16-SOIC package with a width of 3.90 mm. The component supports surface mount installation and functions across a temperature range of -40°C to +125°C. Power dissipation is rated at 400 mW, with a maximum power supply current of 4.5 mA.
Feature Summary
- Integrates Triac dimming capability for compatibility with leading-edge dimmers
- Employs a buck converter topology for efficient AC-DC offline power conversion
- Provides brightness control suitable for LED lighting applications
Applications
- LED lighting systems requiring offline AC-DC conversion
- Solid-state lighting fixtures compatible with Triac dimming controls
- General illumination products utilizing single-output LED drivers
Procurement Notes
Verify the specific suffix 'FSZ' against the manufacturer's official documentation to confirm packaging type and availability status. Confirm RoHS compliance details directly with the supplier or datasheet. Check for End-of-Life (EOL) notifications or obsolescence warnings prior to procurement. Ensure the 16-SOIC package dimensions match the target PCB footprint requirements. Validate that the 200 kHz operating frequency aligns with electromagnetic interference constraints of the final design.
Selection Notes
Select this component for designs requiring integrated Triac dimming without external controllers. The buck topology suits applications where input voltage exceeds output requirements. Consider the 16-SOIC package for surface-mount assembly processes. Evaluate the 400 mW power dissipation limit against thermal management capabilities. Ensure the 200 kHz switching frequency fits within the system's noise and efficiency targets.
Part Context
The CS1612A belongs to Cirrus Logic's family of LED driver integrated circuits. These components are engineered for high integration in lighting applications. The series typically combines power switching and control logic on a single die. This specific model focuses on offline AC-DC conversion with dimming support. It represents Cirrus Logic's approach to simplifying LED driver design through monolithic solutions.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer's official cross-reference documentation for verified alternatives. Verify pinout and electrical parameter compatibility before substituting any component.
