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Product Detailed Parameters
- Description：IC OFFLINE SWITCH FLYBACK 7SO
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Isolation：Isolated
- Internal Switch(s)：Yes
- Voltage - Breakdown：650V
- Topology：Flyback
- Voltage - Start Up：16 V
- Voltage - Supply (Vcc/Vdd)：10V ~ 28V
- Duty Cycle：-
- Frequency - Switching：-
- Fault Protection：Current Limiting, Open Loop, Over Load, Over Temperature, Over Voltage, Short Circuit
- Control Features：-
- Operating Temperature：-40°C ~ 85°C (TA)
- Package / Case：8-SOIC (0.154", 3.90mm Width), 7 Leads
- Supplier Device Package：7-SO
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
- Power (Watts)：7.5 W
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Overview
The AP3981BS7-13 is an AC/DC converter switcher from Diodes Incorporated, featuring a Flyback topology and isolated output. It integrates a primary-side regulation controller with an N-channel power MOSFET in an SO-7 package. The device operates within a supply voltage range of 10 V to 28 V and supports a maximum output power of 7.5 W. It functions across a temperature range of -40 °C to +85 °C using Silicon technology.
Feature Summary
- Integrates primary-side regulation controller and N-channel power MOSFET
- Enables precise constant current and constant voltage without optocouplers
- Provides comprehensive protection including OVP, UVP, short circuit, and OTP
Applications
- Router power supplies
- Set-top box (STB) power adapters
- Network adapters
Procurement Notes
Verify the specific suffix 'S7-13' against official Diodes Incorporated documentation to confirm tape-and-reel packaging quantities and RoHS compliance status. Ensure the component matches the required SO-7 package dimensions and thermal characteristics for your design. Cross-reference the datasheet revision date to validate all electrical parameters before finalizing procurement orders.
Selection Notes
Select this component for designs requiring isolated flyback conversion with integrated power switching. It is suitable for applications prioritizing cost reduction by eliminating optocouplers while maintaining high efficiency through AM and PFM modes. Verify that the 7.5 W output capability and SO-7 package fit the system's thermal and spatial constraints.
Part Context
This part belongs to the AP3981B/C/D2 series of power conversion switches. These devices are designed to simplify AC/DC adapter designs by combining control logic and power stages. The series targets consumer electronics and data communication equipment where compact size and high reliability are essential.
Replacement Considerations
Consult official Diodes Incorporated substitution guides for verified alternatives. Generic cross-references may not match the integrated MOSFET specifications or protection features.
