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STR5A453D - Off-Line PWM Controller

Download the STR5A453D datasheet PDF. This datasheet also covers the STR5A451D variant, as both devices belong to the same off-line pwm controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The STR5A45xD Series is power ICs for switching power supplies, incorporating a MOSFET and a current mode PWM controller IC for non-isolated Buck converter and Inverting converter topologies.

Key Features

  • Pb-free (RoHS Compliant).
  • Buck Converter.
  • Inverting Converter.
  • Current Mode PWM Control.
  • Automatically Switch the Operation Mode According to the Load Heavy Load: 60 kHz (typ. ) Fixed Switching Frequency Mode Medium Load: Green Mode, 23 kHz (typ. ) to 60 kHz (typ. ) Light Load: Burst Oscillation Mode.
  • Built-in Startup Function.
  • Built-in Error Amplifier.
  • Random Switching Function.
  • Leading Edge Blanking Function.
  • Soft Start Function.
  • Protections.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (STR5A451D-Sanken.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number STR5A453D
Manufacturer Sanken
File Size 705.82 KB
Description Off-Line PWM Controller
Datasheet download datasheet STR5A453D Datasheet

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Other Datasheets by Sanken

Part Number Description
STR5A451D Off-Line PWM Controller
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STR5A100D Primary Side Regulation Off-Line PWM Controllers
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
For Non-Isolated Off-Line PWM Controllers with Integrated Power MOSFET STR5A45xD Series Data Sheet Description The STR5A45xD Series is power ICs for switching power supplies, incorporating a MOSFET and a current mode PWM controller IC for non-isolated Buck converter and Inverting converter topologies. The operation mode is automatically changed, in response to load, to the fixed switching frequency, to the switching frequency control, and to the burst oscillation mode. Thus the power efficiency is improved. The product achieves high cost-performance power supply systems with few external components. Features ● Pb-free (RoHS Compliant) ● Buck Converter ● Inverting Converter ● Current Mode PWM Control ● Automatically Switch the Operation Mode According to the Load Heavy Load: 60 kHz (typ.