AP3771BK6TR-CG1

Overview

The AP3771BK6TR-CG1 is a high-performance AC/DC power supply controller designed for battery charger and adapter applications. It utilizes primary side regulation technology to achieve low component count and cost-effective designs. The device operates with a wide input voltage range and features an integrated high-voltage startup circuit. It supports fixed frequency operation with jittering to reduce EMI. The controller includes comprehensive protection functions such as over-voltage, over-current, and thermal shutdown.

Feature Summary

• Optimized for low-power offline primary side regulation in AC/DC adapters
• Integrated high-voltage startup circuit reduces external component count
• Fixed frequency operation with spread spectrum capability for EMI reduction
• Comprehensive protection mechanisms including OVP, OCP, and OTP

Applications

• AC/DC adapters
• Battery chargers
• Low-power offline power supplies

Procurement Notes

Verify the complete part number including suffixes such as 'CG1' against official Diodes Incorporated documentation to ensure correct package type and tape/reel specifications. Confirm RoHS compliance status through the manufacturer's current datasheet or product compliance statements before procurement. Check for any recent lifecycle notices regarding obsolescence or last-time buy status directly from the supplier.

Selection Notes

Select this component for applications requiring primary side regulation to minimize transformer complexity and cost. Ensure the design accommodates the specific operating temperature range of -40°C to 85°C. Verify that the required output power levels align with the controller's capabilities for efficient performance. Consider the SOT-26 package constraints for PCB layout and thermal management requirements during the design phase.

Part Context

This part belongs to the AP3771 family of power supply controllers from Diodes Incorporated. The family offers various package options and suffix variations tailored for different manufacturing and application needs. These controllers are widely used in consumer electronics and general-purpose power adapters due to their efficiency and compact form factor.

Replacement Considerations

Consult official substitution guides for compatible alternatives within the AP3771 series or other primary-side regulated controllers from Diodes Incorporated. Verify pin compatibility and electrical parameter equivalence before replacing. Cross-reference with distributors for availability if the original part is discontinued.