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STR-A6169 from SANKEN

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STR-A6169

Manufacturer: SANKEN, SK

Universal-Input/5 W Flyback Switching Regulator
Partnumber Manufacturer Quantity Availability
STR-A6169,STRA6169 SANKEN, SK 37308 In Stock

Description and Introduction

Universal-Input/5 W Flyback Switching Regulator The part STR-A6169 is manufactured by Sanken (SK).  

**Specifications:**  
- **Type:** Switching Regulator IC  
- **Topology:** Quasi-Resonant (QR) Flyback Converter  
- **Input Voltage Range:** 85V to 265V AC (Wide Range)  
- **Output Power:** Up to 15W (depending on design)  
- **Switching Frequency:** ~65 kHz (quasi-resonant operation)  
- **Standby Power Consumption:** <30mW  
- **Protection Features:** Overcurrent Protection (OCP), Overvoltage Protection (OVP), Overload Protection (OLP), Thermal Shutdown (TSD)  
- **Package:** DIP-7  

**Descriptions:**  
The STR-A6169 is a high-efficiency switching regulator IC designed for low-power AC/DC converters. It integrates a high-voltage MOSFET and a PWM controller, making it suitable for compact power supply designs. It operates in quasi-resonant mode to improve efficiency and reduce EMI.  

**Features:**  
- Built-in 650V MOSFET  
- Auto-restart protection for fault conditions  
- Frequency reduction at light loads for improved efficiency  
- Low startup current (~5µA)  
- Soft-start function to reduce inrush current  
- Adjustable output voltage with feedback loop  

This IC is commonly used in adapters, standby power supplies, and small offline power applications.

Application Scenarios & Design Considerations

Universal-Input/5 W Flyback Switching Regulator

Alternative Part Number

  • TNY267PN --: Offline flyback switcher in DIP-8 with integrated MOSFET, commonly used as a functional replacement for Sanken STR-A series in low-power AC-DC supplies.
  • VIPER22A --: Widely available offline PWM switcher with integrated power MOSFET, similar power range and DIP-8 package, suitable for drop-in redesign of STR-A6169 circuits.
  • ICE2A165 --: Integrated power stage offline switcher in DIP-8 with comparable voltage/current ratings, a common cross-reference for Sanken STR-A6xxx regulators.
  • ICE3A0565 --: CoolSET offline current-mode controller with integrated 650V MOSFET, comparable power range and application to the STR-A6169.
  • ICE3B0565 --: CoolSET offline current-mode controller with integrated 650V MOSFET, suitable alternative for small power adapters and standby supplies.

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