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BL8080 Datasheet(PDF) 1 Page - SHANGHAI BELLING CO., LTD.

Part # BL8080
Description  HIGH INTEGRATED PWM CONTROLLER
PDF  10 Pages
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Manufacturer  BELLING [SHANGHAI BELLING CO., LTD.]
Direct Link  http://www.belling.com.cn
Logo BELLING - SHANGHAI BELLING CO., LTD.

BL8080 Datasheet(HTML) 1 Page - SHANGHAI BELLING CO., LTD.

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1
BL8080
HIGH INTEGRATED PWM CONTROLLER
GENERAL DISCRIPTION
The BL8080 is a PWM controller designed to
drive high voltage NPN transistors. It integrates
an
oscillator,
cycle-by-cycle
current
limit,
thermal protection and over voltage protection,
great
reducing
the
number
of
external
components
and system level cost.
Compared to conventional controller, BL8080
has a significantly smaller startup current of
less than 20uA, which
allows large startup
resistor that enabes further power saving. The
frequency can be adjusted
from an external
capcitor. At light load condition the frequency of
BL8080 can be varied according to the load,
which improves the light load efficiency.
FEATURES
 Low start up current
 Easy programmable frequency
 Compact SOT23-6 package
 Universal voltage range: 85VAC -264VAC
 Thermal shutdown
 Cycle by cycle current limit
 Slope current drive
 Low standby power consumption
APPLICATIONS
 Cell phone charger
 DVD player power supply
 MP3 charger
 LED lighting driver
TYPICAL APPLICATION CIRCUIT
1
2
3
6
4
5
OB
OE
VCC
GND
FB
CT
LC8100
AC Input
DC Output
Figure1: BL8080 Typical Application Circuit
BL8080


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