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KA3843AM - Current Mode PWM Controller

Download the KA3843AM datasheet PDF. This datasheet also covers the KA3843A variant, as both devices belong to the same current mode pwm controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The KA3843AM are fixed frequency current mode PWM controller.

Line and DC to DC converter applications with a minimal external components.

Key Features

  • Low Start-Up and Operating Current High Current Totem Pole Output Undervoltage Lockout With Hysteresis Operating Frequency Up To 500KHz BLOCK.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (KA3843A_WingShing.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number KA3843AM
Manufacturer Wing Shing
File Size 693.65 KB
Description Current Mode PWM Controller
Datasheet download datasheet KA3843AM Datasheet

📁 Similar Datasheet

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Other Datasheets by Wing Shing

Part Number Description
KA3843A Current Mode PWM Controller

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
www.DataSheet4U.com Current Mode PWM Controller KA3843A(AM) DESCRIPTION The KA3843AM are fixed frequency current mode PWM controller. They are specially designed for OFF−Line and DC to DC converter applications with a minimal external components. Internally implemented circuits include a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totempole output ideally suited for driving a power MOSFET. Protection circuitry includes built undervoltage lockout and current limiting. The corresponding thresholds for the The KA3843AM are 8.4V(on) and 7.6V (off) The KA3843AM can operate within 100% duty cycle. PIN CONNECTION (TOP VIEW) The KA3843AM has Start-Up Current 0.17mA (typ).