STMicroelectronics PWM Controller, 60kHz, 730V, SOIC-8

The PWM Controller from STMicroelectronics is a low power off-line switched-mode power supply primary switcher, integrating a dedicated current mode PWM controller with a high voltage power MOSFET on a single silicon chip. This design delivers efficient and compact power supply solutions for a variety of applications.

The internal control circuit provides a wide input voltage range on the VDD pin (9V to 38V), accommodating changes in auxiliary supply voltage. It features automatic burst mode in low load conditions to enhance efficiency, and overvoltage protection in HICCUP mode for robust system safety. The device operates at a fixed 60kHz switching frequency, ensuring stable performance.

This controller is designed for off-line power supplies, including battery charger adapters, standby power supplies for TVs or monitors, and auxiliary supplies for motor control. With comprehensive protections such as over-temperature, overcurrent, and overvoltage with auto-restart, it ensures reliable and safe operation across a wide operating temperature range (-40°C to 150°C).

The device comes in a surface mount SOIC-8 package, making it suitable for automated assembly processes. ESD precautions are recommended during handling. Please note that market demand has led to extended lead times, and delivery dates may fluctuate; this product is exempt from discounts.

Key Features:

• Fixed 60kHz switching frequency
• 9V to 38V wide range VDD voltage
• Current mode control
• Auxiliary under-voltage lockout with hysteresis
• High voltage start-up current source
• Over-temperature, overcurrent, and overvoltage protection with auto-restart

Specifications:

• Input Voltage Min: 85VAC
• Input Voltage Max: 265VAC
• IC Case / Package: SOIC-8
• No. of Pins: 8
• Power Rating Max: 5W
• Topology: Flyback
• Power Switch Voltage Rating: 730V
• Power,