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Product Detailed Parameters
- Description：IC LED DRIVER CTRLR 16SOIC
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Controller
- Topology：Flyback, Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：6.75V
- Voltage - Supply (Max)：30V
- Voltage - Output：1.5V ~ 5V
- Current - Output / Channel：-
- Frequency：-
- Dimming：-
- Applications：-
- Operating Temperature：-40°C ~ 125°C (TA)
- 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 FL7734MX is a primary-side regulated LED driver controller manufactured by onsemi, designed for dimmable LED driving applications. It supports Boost, Buck, and Flyback topologies with a single output channel. The device operates within a supply voltage range of 6.75V to 30V and provides an output voltage between 1.5V and 5V. Key electrical parameters include a maximum output current of 180 mA, a working frequency of 70 kHz, and a maximum power dissipation of 909 mW. It functions within a temperature range of -40°C to +125°C and is housed in a 16-SOIC package.
Feature Summary
- Integrates primary-side regulation for simplified circuit design without secondary side feedback components.
- Supports phase-cut dimming capabilities for compatibility with common lighting control systems.
- Includes built-in short circuit and thermal protection mechanisms to enhance system reliability.
Applications
- Dimmable LED lighting fixtures
- General illumination drivers using flyback topology
- Buck converter based LED drivers
- Boost converter based LED drivers
Procurement Notes
Verify the specific ordering suffix (e.g., TR, CT, DKR) to confirm the required packaging format such as tape and reel or cut tape. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement. Ensure the selected variant matches the intended volume and handling specifications for your assembly process.
Selection Notes
Select this component when a primary-side regulated solution is required for AC-DC LED drivers. It is suitable for designs utilizing flyback, buck, or boost topologies. Consider the 16-SOIC package constraints and the 70 kHz switching frequency when designing magnetic components. Verify that the input voltage range aligns with your specific application requirements.
Part Context
The FL7734MX belongs to the FL7734 series of LED lighting driver ICs from onsemi. This series focuses on providing cost-effective solutions for general lighting applications. The part integrates PWM control with primary-side regulation to reduce component count. It is distinct from other onsemi PMICs by its specific focus on single-output LED driving with dimming support.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Users should consult official onsemi resources for cross-reference information or verify pin-to-pin compatibility with alternative devices independently.
