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LT1246CS8 데이터시트(PDF) 10 Page - Linear Technology

부품명 LT1246CS8
상세설명  1MHz Off-Line Current Mode PWM and DC/DC Converter
PDF  12 Pages
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제조업체  LINER [Linear Technology]
홈페이지  http://www.linear.com
Logo LINER - Linear Technology

LT1246CS8 데이터시트(HTML) 10 Page - Linear Technology

Back Button LT1246CS8 Datasheet HTML 4Page - Linear Technology LT1246CS8 Datasheet HTML 5Page - Linear Technology LT1246CS8 Datasheet HTML 6Page - Linear Technology LT1246CS8 Datasheet HTML 7Page - Linear Technology LT1246CS8 Datasheet HTML 8Page - Linear Technology LT1246CS8 Datasheet HTML 9Page - Linear Technology LT1246CS8 Datasheet HTML 10Page - Linear Technology LT1246CS8 Datasheet HTML 11Page - Linear Technology LT1246CS8 Datasheet HTML 12Page - Linear Technology  
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LT1246/LT1247
10
Adjustable Clamp Level with Soft Start
Soft Start
External Clock Synchronization
LT1246 • TA06
R
VREF
FEEDBACK
COMP
ISENSE
C
+
–
+
–
1
2
2.5V
2R
R
1V
1.5V
–
+
3
1mA
5.6V
8
5V REF
LT1246 • TA07
FEEDBACK
COMP
RT/CT
VREF
VIN
RS
R2
C
R1
VCLAMP ≈
1.67
R2
+ 1
R1
(
(
IPK (MAX) ≈
VCLAMP
RS
WHERE: O
≤ V
CLAMP ≤ 1.0V
tSOFT START = –ln 1 –
VC
C
R1 R2
3 • VCLAMP
R1 + R2
ISENSE
+
–
+
–
2
2.5V
2R
R
1V
1.5V
–
+
BLANKING
1mA
5.6V
4
OSCILLATOR
R
S
18V
7
VCC
UV
LOCKOUT
5
GND
6
OUTPUT
5V REF
MAIN BIAS
REFERENCE PULLDOWN
OUTPUT
PULLDOWN
REFERENCE ENABLE
1
8
3
100k
LT1246 • TA05
5V REF
OSCILLATOR
EXTERNAL
SYNC
INPUT
0.01
µF
47
Ω
CT
D1
RT
RT/CT
VREF
D1 IS REQUIRED IF THE SYNC AMPLITUDE IS
LARGE ENOUGH TO PULL THE BOTTOM OF CT
MORE THAN 300mV BELOW GROUND.
8
4
S
APPLICATI
TYPICAL



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