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Product Detailed Parameters
- Description：XFMR FLYBACK DC/DC CONV 7UH SMD
- Series：-
- Mfr：Coilcraft
- Package：Strip
- Type：For DC/DC Converters
- Applications：Flyback Converters
- Intended Chipset：LM25184
- Chipset Manufacturer：Texas Instruments
- Voltage - Primary：4 ~ 42V
- Voltage - Auxiliary：-
- Voltage - Isolation：1500Vrms
- Inductance @ Frequency：7µH @ 300kHz
- Frequency：300kHz
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Size / Dimension：-
- Height - Seated (Max)：0.394" (10.00mm)
- Footprint：0.520" L x 0.430" W (13.21mm x 10.92mm)
- Style：-
- Grade：-
- Qualification：-
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Overview
The Coilcraft ZA9672-BED is a no-optocoupler flyback transformer designed for the Texas Instruments LM25184 controller. It supports an input voltage range of 4 V to 42 V and provides a regulated 12 V output at 1 A, delivering 12 W of power. The component operates at a switching frequency of 300 kHz with a primary inductance of 7 μH measured at 300 kHz. It features 1500 Vrms isolation voltage and utilizes a surface-mount package measuring 13.21 mm by 11.02 mm with a maximum seated height of 10.00 mm.
Feature Summary
- Enables isolated power conversion without requiring an optocoupler for feedback control
- Optimized specifically for compatibility with the TI LM25184 synchronous rectifier controller
- Provides high-voltage isolation between primary and secondary circuits
- Designed for surface-mount assembly in compact industrial enclosures
Applications
- Industrial automation systems requiring isolated DC-DC conversion
- Embedded power supplies for control boards
- Battery-powered equipment needing efficient step-down topology
- Consumer electronics utilizing synchronous rectification
Procurement Notes
Verify that the specific suffix BED matches the required footprint and lead configuration. Confirm the manufacturer date code aligns with project requirements. Ensure the component is sourced from authorized distributors to guarantee authenticity. Check for any specific handling instructions regarding the surface-mount package during assembly.
Selection Notes
Select this component when using the LM25184 controller for 12 V outputs. Ensure the input voltage stays within the 4 V to 42 V range. Verify that the 12 W power requirement fits the thermal design. Consider the 300 kHz operating frequency for magnetic component sizing. Confirm the 1500 Vrms isolation meets safety standards for the target application.
Part Context
This part belongs to the ZA967x series of no-opto flyback transformers. These components are engineered to work exclusively with the Texas Instruments LM25184 family of controllers. The series eliminates the need for traditional optocouplers, simplifying the circuit design while maintaining precise regulation across varying load conditions.
Replacement Considerations
Other parts in the ZA967x series, such as the ZA9673-BED, offer different output voltages but share similar design principles. Direct substitution requires matching the output specifications and ensuring compatibility with the LM25184 controller. Always verify pinout and electrical parameters before replacing.
