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BL8051 데이터시트 PDF




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부품번호 BL8051 기능
기능 60V Input / 5V Output Linear Regulator
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BL8051 데이터시트, 핀배열, 회로
BL8051
60V Input / 5V Output Linear Regulator
DESCRIPTION
BL8051 is a three-terminal positive regulator with
an output voltage of 5.0V and output current up
to 100mA. The device features a typical output
tolerance of ±5%. And its input voltage can
stand a voltage as high as 60V.
BL8051 includes high accuracy voltage reference,
error amplifier, TSD circuit and output driver
module.
BL8051 offers thermal shut down functions to
assure the stability of chip and power system.
BL8051 is available in SOT89-3,TO-92 and TO-220
power packages
FEATURES
Maximum output current up to 100mA
Output voltage tolerances of ±5% over the
temperature range
Internal thermal over-temperature
protection
High input voltage (up to 60V)
Low Power Consumption:80uATyp.
Available in plastic TO-92 and plastic TO-220
packages
No external components
APPLICATIONS
Battery Powered equipment
Communication equipment
Audio/Video equipment
TYPICAL APPLICATION
BL8051
ELECTRICAL CHARACTERISTICS
Application circuit of BL8051
NOTE: Input capacitor (C1=0.33uF) and Output
capacitor (C2=0.1uF) are recommended in all
application circuit. Tantalum capacitor is
recommended.
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BL8051 pdf, 반도체, 판매, 대치품
BLOCK DIAGRAM
BL8051
Fig.1 Block Diagram
EXPLANATION and THERMAL CONSIDERATION
BL8051 is a series of low dropout voltage and low power consumption regulator. Its application circuit is
very simple, which only needs two outside capacitors.
We have to take heat dissipation into great consideration when voltage of input is high. Because in such
cases, the power dissipation consumed by BL8051 is very large. LC1029 uses SOT-89-3 package type and its
thermal resistance is about 20°C/W. And the copper area of application board can affect the total thermal
resistance. If copper area is 5cm*5cm (two sides), the resistance is about 30°C/W. So the total thermal
resistance is about 20°C/W + 30°C/W. We can decrease total thermal resistance by increasing copper area
in application board. When there is no good heat dissipation copper are in PCB, the total thermal resistance
will be as high as 120°C/W, then the power dissipation of BL8051 could allow on itself is less than 1W. And
furthermore, BL8051 will work at junction temperature higher than 125°C under such condition and no
lifetime is guaranteed.
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BL8051 전자부품, 판매, 대치품
PACKAGE OUTLINE (Continued)
Package
TO-220
Devices per reel
Package specification
BL8051
Unit mm
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