ET- KA384x
Current Mode PWM Controller
Description
The
KA384x
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
totem pole output ideally suited for driving a
power
MOSFET.
Protection
circuitry
includes built under voltage lockout and
current limiting.
Features
Low Star-up and Operating Current
High Current Totem Pole Output
Under Voltage Lockout With Hysteresis
Operating Frequency Up to 500KHz
Applications
Switching Mode Power Supplies
Power Converters
Pin Description
Block Diagram
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Copyright @ Estek Electronics Co., Ltd
Version 0.2
27 July 2011
ESTEK [ Estek Electronics Co. Ltd ]
