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Product Detailed Parameters
- Description：IC OFFLINE SWITCH FLYBACK SOT26
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Isolation：Isolated
- Internal Switch(s)：No
- Voltage - Breakdown：-
- Topology：Flyback
- Voltage - Start Up：15.8 V
- Voltage - Supply (Vcc/Vdd)：10V ~ 25V
- Duty Cycle：75%
- Frequency - Switching：65kHz
- Fault Protection：Current Limiting, Over Load, Over Temperature, Over Voltage
- Control Features：-
- Operating Temperature：-40°C ~ 150°C (TJ)
- Package / Case：SOT-23-6
- Supplier Device Package：SOT-26
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
- Power (Watts)：-
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Overview
The AP3125AKTR-G1 is an AC/DC converter IC from Diodes Incorporated, designed for offline applications using a flyback topology. It operates as a current mode PWM controller with a switching frequency of 100kHz and supports Green Mode operation down to 20kHz. The device functions within a supply voltage range of 10V to 25V and features a maximum duty cycle of 80%. It includes comprehensive fault protection mechanisms such as overcurrent, overload, overtemperature, and overvoltage protection. The component is housed in a SOT-26 package and is rated for junction temperatures between -40°C and 150°C.
Feature Summary
- Implements current mode PWM control with variable frequency Green Mode operation for enhanced efficiency at light loads.
- Integrates multiple hardware-based fault protections including overcurrent, overload, overtemperature, and overvoltage safeguards.
- Designed specifically for isolated flyback AC/DC converter topologies in offline power supply applications.
Applications
- Universal input AC/DC power supplies
- Offline flyback converter designs
- Green mode power adapter implementations
Procurement Notes
Verify the specific suffix against official Diodes Incorporated documentation to confirm pinout compatibility and electrical characteristics. Ensure the ordering information matches the required packaging format. Cross-reference the datasheet revision history for any recent design changes or parameter updates before finalizing procurement specifications.
Selection Notes
Select this component for designs requiring a compact solution for isolated flyback converters with integrated Green Mode functionality. Consider the SOT-26 package constraints and the specified operating temperature range when defining thermal management strategies. Validate that the external component values align with the internal current limit and feedback thresholds defined in the technical data.
Part Context
This part belongs to the AP3125 series of AC/DC controllers manufactured by Diodes Incorporated. The series focuses on cost-effective solutions for offline power conversion. The AP3125AKTR-G1 variant specifically denotes the tape and reel packaging configuration suitable for automated surface mount assembly processes.
Replacement Considerations
Consult official manufacturer substitution guides for verified alternatives. Do not assume functional equivalence with other flyback controllers without verifying pinout and electrical parameter alignment.
