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TL494AP 데이터시트(PDF) 1 Page - First Components International

부품명 TL494AP
상세설명  Switchmode Pulse - Width - Modulation Control Circuit
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제조업체  FCI [First Components International]
홈페이지  http://www.cotra.com.tw/
Logo FCI - First Components International

TL494AP 데이터시트(HTML) 1 Page - First Components International

  TL494AP Datasheet HTML 1Page - First Components International TL494AP Datasheet HTML 2Page - First Components International TL494AP Datasheet HTML 3Page - First Components International TL494AP Datasheet HTML 4Page - First Components International TL494AP Datasheet HTML 5Page - First Components International TL494AP Datasheet HTML 6Page - First Components International TL494AP Datasheet HTML 7Page - First Components International  
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The TL494AP is a fixed frequency, pulse width modulation control
circuit designed primarily for SWITCHMODE power supply control/
• Complete Pulse Width Modulation Control Circuitry
• On– Chip Oscillator with Master or Slave Operation
• On– Chip Error Amplifiers
• On– Chip 5.0 V Reference
• Adjustable Deadtime Control
• Uncommitted Output Transistors Rated to 500 mA Source or
Sink
• Output Control for Push– Pull or Single– Ended Operation
• Undervoltage Lockout
PIN ASSIGNMEN
ORDERING INFORMATION
Plastic
TL494
Chip
TA = - 20° ÷ 85° C
LOGIC DIAGRAM
Pin 7 = GND
Pin 12 = VCC
noninv. input
inv. input
feedback
dead time control
C
T
R
T
gnd
collector 1
noninv. input
inv. input
ref. output
output control
Vcc
collector 2
emitter 2
emitter 1
1
2
3
5
6
7
89
10
11
12
14
15
16
5
6
13
8
9
11
10
15
3
7 12 14
16
2
1
4
dead time control
error amp 1
error amp 2
PWM comparator
pulce steering flip
flop
output control
reference
regulator
oscillator
T
&
TL494AP Switchmode Pulse - Width - Modulation Control Circuit


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