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TLS1242 Datasheet(PDF) 2 Page - Texas Instruments

Part # TLS1242
Description  CURRENT-MODE PWM CONTROLLER WITH POWER-FACTOR CORRECTOR
PDF  13 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TLS1242 Datasheet(HTML) 2 Page - Texas Instruments

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TLS1242, TLS1244
CURRENT-MODE PWM CONTROLLER
WITH POWER-FACTOR CORRECTOR
SLVS161 – MAY 1997
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251–1443
functional block diagram
Reference
Regulator
VCC
UVLO
+
–
+
–
34 V
R
R
Vref Good
T
Oscillator
S
PWM
Latch
R
Q
Q
S
PFC
Latch
R
Q
Q
Current Sense
Comparator
1 V
_
+
VCC
PKLIM
Comparator
+
–
Error
Amplifier
VI(SENSE) OVP
Comparator
PFC PWM
Comparator
PGND
_
+
Multiplier
I
V X2
_
+
Voltage
Amplifier
PWM CONTROLLER
PFC CONTROLLER
20
10
5
4
2
1
15
8
7
9
14
12
11
13
18
17
3
16
6
19
VCC
REF
SYNC
RT
CT
FB
COMP
PKLIM
CAO
ISENS2
MULT
IAC
AO
VSENSE
RMS
2.5 V
OUT1
PGND
ISENS1
OUT2
GND
Current
Amplifier



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