Description
The UC3842A , UC3843A series of high performance fixed frequency current mode controllers are specifically designed for off line and DC to DC converter UC3842A , UC3843A, UC3844A, UC3845A. SLUS224F SEPTEMBER 1994 REVISED OCTOBER 2017. UCx84xA Current-Mode PWM Controller. 1. The UTC UC3842A /3843A provide the necessary functions to implement off-line or DC to DC fixed frequency current mode , controlled switching circuits with utilizing UC3842 control. CURRENT-MODE CONTROL. Figure 1 shows the two- loop current-mode control system in a typical buck regulator application. A. for noise concerns. output ripple: if ripple pollutes feedback, tail chasing can occur. crossover frequency rolloff is mandatory, e.g. in PFC circuits.
Part Number | UC3842A |
Brand | STMicroelectronics |
Image |
UC3842A
STMicroel
20084
0.94
HK HEQING ELECTRONICS LIMITED
UC3842A
STMICROELECT
35
1.9175
Gallop Great Holdings (Hong Kong) Limited
UC3842A
ST/MICRON
152515
2.895
UCAN TRADE (HK) LIMITED
UC3842A
ST
5998
3.8725
Y.H.X ELECTRONIC TECHNOLOGY HK LIMITED
UC3842A
STMicroelectronics
800
4.85
Yingxinyuan INT'L (Group) Limited