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KA7812A 产品手册 - Fairchild（飞兆/仙童）
制造商:
Fairchild（飞兆/仙童）
封装:
TO-220
描述:
3端子1A正电压稳压器 3-Terminal 1A Positive Voltage Regulator
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KA7812A数据手册
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©2003 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.0
Features
• Output Current up to 1A
• Output Voltages of 5, 6, 8, 9, 12, 15, 18, 24V
• Thermal Overload Protection
• Short Circuit Protection
• Output Transistor Safe Operating Area Protection
Description
The KA78XXE/KA78XXAE series of three-terminal posi-
tive regulator are available in the TO-220/D-PAK package
and with several fixed output voltages, making them useful
in a wide range of applications. Each type employs internal
current limiting, thermal shut down and safe operating area
protection, making it essentially indestructible. If adequate
heat sinking is provided, they can deliver over 1A output
current. Although designed primarily as fixed voltage
regulators, these devices can be used with external
components to obtain adjustable voltages and currents.
TO-220
D-PAK
1. Input 2. GND 3. Output
1
1
GND
GND
Internal Block Diagram
SERIES
PASS
ELEMENT
SOA
PROTECTION
ERROR
AMPLIFIER
THERMAL
PROTECTION
CURRENT
GENERATOR
REFERENCE
VOLTAGE
STARTING
CIRCUIT
OUTPUT
3
GND
2
INPUT
1
KA78XXE/KA78XXAE
3-Terminal 1A Positive Voltage Regulator
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