Description
www.DataSheet4U.com Current Mode PWM Controller KA3843A(AM) .
The KA3843AM are fixed frequency current mode PWM controller.
Line and DC to DC converter applications wit.
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 (
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.