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Sanken STR-G9626 Power Regulator IC.

[SANKEN]

■ General Descriptions
The STR-W6700 series products are power ICs for quasi-resonant type switching power supplies, incorporating a power MOSFET and a controller IC, The product achieves high efficiency and low noise power supply systems by the quasi-resonant operation and the bottom-skip quasi-resonant operation. The STR-X6700 series products are the different package (TO-3PF) versions.

■ Features
• Multi-Mode Control
   The operation mode switching with three steps according to load conditions achieves the optimal high efficiency and low noise power supply systems across the full load range. (The confirmation of product number is necessary because some functions are different in each product.)
   • In Standby (Under Standby Load Conditions):
      －UVLO Intermittent Oscillation by lowering output voltage --- Switched by Standby Signal, or
      －Auto Burst-Oscillation --- Switched Automatically
   • Under Low to Middle Load Conditions: Bottom-Skip Quasi-Resonant Operation
      (Bottom-Skip QR)
   • Under Middle to Rating (or Heavy) Load Conditions: Quasi-Resonant Operation (QR)
• Current-Mode Control
• Built-in PWM Oscillator
   The PWM operates with the minimum frequency of around 22 kHz, until the quasi-resonant
   signal becomes valid, reduces the stress on components at startup and load-shorted.
• Soft-Start Function
• Step-Drive Function, reducing switching noise
• Built-in Maximum ON Time Limitation Circuit The function limits the maximum ON time of power
   MOSFET, during the transitions at low input voltage, power ON/OFF.
• Input Compensation at Overcurrent The function reduces the distortion of overcurrent operation
   point to AC input voltage change by adding three components.
• Built-in Avalanche Energy Guaranteed High-Voltage Power MOSFET
• Various Protections
   Overcurrent Protection (OCP) -------------------------------- Pulse-by-Pulse
   Overload Protection (OLP)-------------------------------------- Latch Shutdown
   Overvoltage Protection (OVP) -------------------------------- Latch Shutdown

■ Applications
   Switching Power Supplies for Digital Consumer Equipment;
      LCD-TVs, PDP-TVs, CRT-TVs, etc., Home Appliances, OA Equipments,
      Industry Machines, Communication Devices, Others

General Descriptions
The STR-W6000S series are power ICs for switching power supplies, incorporating a MOSFET and a current mode PWM controller IC.
The low standby power is accomplished by the automatic switching between the PWM operation in normal operation and the burst-oscillation under light load conditions. The product achieves high cost-performance power supply systems with few external components.

Features
● Current Mode Type PWM Control
● Brown-In and Brown-Out function
● Auto Standby Function
   No Load Power Consumption < 30 mW
● Operation Mode
   Normal Operation ----------------------------- PWM Mode
   Standby---------------------------- Burst Oscillation Mode
● Random Switching Function
● Slope Compensation Function
● Leading Edge Blanking Function
● Bias Assist Function
● Audible Noise Suppression function during Standby
   mode
● Protections
   • Overcurrent Protection (OCP); Pulse-by-Pulse,
      built-in compensation circuit to minimize OCP point
      variation on AC input voltage
   • Overload Protection (OLP); auto-restart
   • Overvoltage Protection (OVP); auto-restart
   • Thermal Shutdown Protection (TSD); auto-restart

Applications
● White goods
● Office automation equipment
● Industrial equipment

* Requires only 3 external components



* Small size and high efficiency



* Low switching noise



* Variable output voltage

* Use of SANKEN's semiconductor elements ensures high reliability

General Description
The STR-W6200D series are power ICs for switching power supplies, incorporating a power MOSFET and a current mode PWM controller IC in one package. Including a startup circuit and a standby function in the controller, the product achieves low power consumption, low standby power, and high cost-effectiveness in power supply systems, while reducing external components.

Features and Benefits
▪ TO-220 fully-molded package with 6 pins
▪ Current mode PWM control
▪ PWM and frequency modulation functions: reduces EMI noise, simplifies EMI filters, and cuts cost by external part reduction
▪ Built-in Slope Compensation circuit: avoids subharmonic oscillation
▪ Automatic Standby Mode function (Input Power < 40 mW at no load)
   ▫ Normal operation: PWM mode
   ▫ Light load operation: Standby mode (burst oscillation)
▪ Built-in Audible Noise Suppression function during Standby mode
▪ Built-in startup circuit: reduces power consumption in standby operation, and eliminates external components
▪ Bias-Assist function: improves startup operation, suppresses VCC pin voltage drop in operation, and allows use of smaller VCC capacitor
▪ Built-in Leading Edge Blanking function
▪ Protection Functions:
   ▫ Overcurrent Protection function (OCP); pulse-by-pulse, built-in compensation circuit to minimize OCP point variation on AC input voltage
   ▫ Overload Protection function (OLP); auto restart, built-in timer, reduces heat during overload condition, and few external components required
   ▫ External Latch Protection function (ELP): latched shutdown by external signal
   ▫ Overvoltage Protection function (OVP): latched shutdown
   ▫ Thermal Shutdown function (TSD); latched shutdown Not Recommended

Applications
Switching power supplies for electronic devices such as:
• White goods
• Consumer electronics
• Office automation
• Industrial equipment
• Communications equipment

The STR-A6000 series are power ICs for switching power supplies, incorporating a MOSFET and a current mode PWM controller IC. The low standby power is accomplished by the automatic switching between the PWM operation in normal operation and the burst-oscillation under light load conditions. The product achieves high cost-performance power supply systems with few external components.

DP502T TO-220 5Pin

General Descriptions
The STR-X6700 series products are power ICs for quasi-resonant type switching power supplies, incorporating a power MOSFET and a controller IC, The product achieves high efficiency and low noise power supply systems by the quasi-resonant operation and the bottom-skip quasi-resonant operation.
The STR-W6700 series products are the different package (TO-220F) versions.

Features
● Multi-Mode Control
    The operation mode switching with three steps according to load conditions achieves the optimal high efficiency and low noise power supply systems across the full load range. (The confirmation of product number is necessary because some functions are different in each product.)
    • In Standby (Under Standby Load Conditions):
        －UVLO Intermittent Oscillation by low output voltage --- Switched by Standby Signal, or
        －Auto Burst-Oscillation --- Switched Automatically
    • Under Low to Middle Load Conditions: Bottom-Skip Quasi-Resonant Operation (Bottom-Skip QR)
    • Under Middle to Rating (or Heavy) Load Conditions: Quasi-Resonant Operation (QR)
● Current-Mode Control
● Built-in PWM Oscillator
    The PWM operates with the minimum frequency of around 22 kHz, until the quasi-resonant signal becomes valid, reduces the stress on components at startup and load-shorted.
● Soft-Start Function
● Step-Drive Function, reducing switching noise
● Built-in Maximum ON Time Limitation Circuit
    The function limits the maximum ON time of power MOSFET, during the transitions at low input voltage, power ON/OFF.
● Input Compensation at Overcurrent
    The function reduces the distortion of overcurrent operation point to AC input voltage change by adding three components.
● Built-in Avalanche Energy Guaranteed High-Voltage Power MOSFET
● Various Protections
    Overcurrent Protection (OCP) -------------------------------Pulse-by-Pulse
    Overload Protection (OLP)-----------------------------------Latch Shutdown
    Overvoltage Protection (OVP)-------------------------------Latch Shutdown

Applications
    Switching Power Supplies for Digital Consumer Equipment; LCD-TVs, PDP-TVs, CRT-TVs, etc., Home Appliances, OA Equipments, Industry Machines, Communication Devices, Others

General Descriptions

The  STR-A6100  series  are  power  ICs  for  switching power supplies, incorporating a MOSFET and a current

mode PRC controller IC. PRC  (Pulse  Ratio  Control)  controls  on-time  with fixed off-time.

The  IC  includes  a  startup  circuit  and  a  standby function to achieve the low standby power. The rich set

of  protection  features  helps  to  realize  low  component counts, and high performance-to-cost power supply.

Features

Current Mode Type Pulse Ratio Control

Auto Standby Function

  Normal Operation  ------------------------------  PRC Mode

  Standby  ----------------------------  Burst Oscillation Mode  

No Load Power Consumption < 40mW

Leading Edge Blanking Function

Auto Bias Function

Protections

  Overcurrent Protection (OCP); pulse-by-pulse

  Overload Protection (OLP); auto-restart

  Overvoltage Protection (OVP); latched shutdown

  Thermal Shutdown Protection (TSD); latched shutdown

Applications

White goods

Auxiliary SMPS

Low power SMPS, etc.

The STR-G6651 is specifically designed to satisfy the requirements for increased integration and reliability in off-line quasi-resonant flyback converters. This device incorporates the primary control and drive circuit with a discrete avalanche-rated power MOSFET.

FEATURES

■Quasi-Resonant Operation

■Output Power to 66 W

■Low-Loss, Pulse-Ratio-Control Standby Mode

■Temperature-Compensated Pulse-by-Pulse Over-Current Protection

■Latched Over-Voltage and Thermal Protection

■Under-Voltage Lockout with Hysteresis

■Active Low-Pass Filter for Enhanced Light-Load Stability

■Switched Attenuation of Leading-Edge Current-Sensing Signal

■Regulated Soft Gate Drive

■Adjustable Switching Speed for EMI Control

■Overmolded Five-Pin Package