KA3843A Datasheet - Wing Shing

KA3843A Current Mode PWM Controller

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 compensate.

KA3843A Features

* Low Start-Up and Operating Current High Current Totem Pole Output Undervoltage Lockout With Hysteresis Operating Frequency Up To 500KHz BLOCK DIAGRAM Absolute Maximum Ratings Characteristic Supply Voltage (low impedance source) Output Current Input Voltage (

KA3843A_WingShing.pdf