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Product Detailed Parameters
- Description：IC OFFLINE SWITCH FLYBACK 7SO
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Output Isolation：Isolated
- Internal Switch(s)：Yes
- Voltage - Breakdown：650V
- Topology：Flyback
- Voltage - Start Up：15.5 V
- Voltage - Supply (Vcc/Vdd)：6.82V ~ 25V
- Duty Cycle：-
- Frequency - Switching：65kHz
- Fault Protection：Over Temperature, Over Voltage, Short Circuit
- Control Features：-
- Operating Temperature：-40°C ~ 105°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)：6 W
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Overview
The AP3983BMTR-G1 is an AC/DC converter IC from Diodes Incorporated, designed as a primary-side regulation (PSR) switcher for 6W adapters. It utilizes a flyback topology with an internal silicon switch rated at 650V breakdown voltage. The device operates within a switching frequency range of 65kHz to 80kHz and supports an output current of up to 4A. It functions in a surface-mount 7-SOIC package with a wide operating temperature range from -40°C to 105°C. Key electrical parameters include a Vcc supply range of 6.82V to 25V and a startup voltage of 15.5V.
Feature Summary
- Integrates piecewise pulse frequency modulation (P-PFM) technology for precise primary-side voltage and current regulation without secondary feedback components.
- Includes comprehensive protection features such as over-temperature, over-voltage, and short-circuit protection to ensure operational safety.
- Designed to meet high energy efficiency standards, including Energy Star Level 6 and EU CoC Tier II requirements.
Applications
- Charger power supplies
- ADSL adapter power units
- Household appliance power sources
Procurement Notes
Verify component authenticity through authorized channels due to the End-of-Life status. Confirm RoHS3 compliance and moisture sensitivity level (MSL 3) handling requirements during storage and assembly. Review the Product Change Notification (PCN) dated August 31, 2022, for any manufacturing updates or discontinuance details before finalizing procurement plans.
Selection Notes
Select this component for low-power offline applications requiring simplified design through primary-side regulation. Ensure the target application aligns with the 6W power limit and 650V drain voltage rating. Consider the 7-SOIC package constraints and thermal management needs given the 105°C maximum junction temperature specification.
Part Context
This part belongs to the AP3983 series of power switchers manufactured by Diodes Incorporated. The series is engineered to provide cost-effective solutions for external power supplies. The BM suffix typically denotes specific binning or performance variations within the standard AP3983 family, optimized for general-purpose adapter applications.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. As the product is discontinued, engineers should consult official replacement guides or contact the manufacturer directly for qualified alternatives.
