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KA3845B датащи(PDF) 1 Page - Fairchild Semiconductor

номер детали KA3845B
подробное описание детали  SMPS Controller
Download  12 Pages
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производитель  FAIRCHILD [Fairchild Semiconductor]
домашняя страница  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

KA3845B датащи(HTML) 1 Page - Fairchild Semiconductor

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©2000 Fairchild Semiconductor International
www.fairchildsemi.com
Rev. 5.0
Features
• Low Start Up Current
• Maximum Duty Clamp
• UVLO With Hysteresis
• Operating Frequency Up To 500KHz
Description
The KA3842B/KA3843B/KA3844B/KA3845B are fixed
frequency current-mode PWM controller. They are spe-
cially designed for Off - Line and DC-to-DC converter
applications with minimum external components. These
integrated circuits feature 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 circuity Includes built in
under-voltage lockout and current limiting. The KA3842B
and KA3844B have UVLO thresholds of 16V (on) and
10V (off) The KA3843B and KA3845B are 8.5V (on) and
7.9V (off) The KA3842B and KA3843B can operate within
100% duty cycle. The KA3844B and KA3845B can operate
with 50% duty cycle.
8-DIP
14-SOP
1
1
KA3842B/KA3843B/KA3844B/KA3845B
SMPS Controller


Аналогичный номер детали - KA3845B

производительномер деталидатащиподробное описание детали
logo
Fairchild Semiconductor
KA3845B FAIRCHILD-KA3845B Datasheet
125Kb / 10P
   SMPS Controller
logo
ON Semiconductor
KA3845B ONSEMI-KA3845B Datasheet
243Kb / 12P
   SMPS Controller
Rev. 1.0.2
logo
Fairchild Semiconductor
KA3845BD FAIRCHILD-KA3845BD Datasheet
125Kb / 10P
   SMPS Controller
logo
ON Semiconductor
KA3845BD ONSEMI-KA3845BD Datasheet
243Kb / 12P
   SMPS Controller
Rev. 1.0.2
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Аналогичное описание - KA3845B

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