STR4A100 Series: Off-Line PWM Controllers with Integrated Power MOSFET

The STR4A100 series are power ICs for switching power supplies, incorporating a sense 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.

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  • Features and BenefitsFeatures and Benefits
  • PackagingPackaging
  • Technical DocsTechnical Docs
  • NewsNews
  • Auto Standby Function
    No Load Power Consumption <10 mW
  • Operation Mode
    • Normal Operation: PWM Mode
    • Standby: Burst Oscillation Mode
  • Current Mode Type PWM Control
  • Random Switching Function
  • Slope Compensation Function
  • Leading Edge Blanking Function
  • Build-in Startup Circuit
  • Bias Assist Function
  • Soft Start Function
  • Protections
    • Overcurrent Protection (OCP): Pulse-by-Pulse
    • Overload Protection (OLP): Auto-Restart
    • Overvoltage Protection (OVP): Auto-Restart
    • Thermal Shutdown Protection (TSD): Auto-Restart
Packages

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STR4A100 pwm controller ic Typical Application

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant
Part Composition /
RoHS Data
Comments Samples Check
Distributor Stock
STR4A162D 8-lead DIP -40°C to 125°C Yes View Data New Contact your
local sales rep
Check Stock
STR4A162S 8-lead SOIC -40°C to 125°C Yes View Data New Contact your
local sales rep
Check Stock
STR4A164HD 8-lead DIP -40°C to 125°C Yes View Data New Contact your
local sales rep
Check Stock

Allegro’s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of Allegro’s product can reasonably be expected to cause bodily harm.

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