Part Number
|
KA3842 |
Manufacturer
|
ETC |
Description
|
CurrentMode PWM Controller |
Published
|
Jan 5, 2020 |
Detailed Description
|
KA3842/43/44/45
Inv № 59
Current Mode PWM Controller
July 1995 - revised July 2002
DESCRIPTION
KA3842/43/44/45 are fi...
|
Datasheet
|
KA3842
|
Overview
KA3842/43/44/45
Inv № 59
Current Mode PWM Controller
July 1995 - revised July 2002
DESCRIPTION
KA3842/43/44/45 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 UC3842A(AM) and UC3844A(AM) have UVLO thresholds of 16 V (on) and 10 V (...
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