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Part Name
Description
KA3511DS View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
Manufacturer
KA3511DS
Intelligent Voltage Mode PWM IC
Fairchild Semiconductor
KA3511DS Datasheet PDF : 18 Pages
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KA3511DS
Internal Block Diagram
R
T
7
C
T
8
COMP
2
OSCILLATOR
PWM
CONTROL
DQ
CK Q
E/A(-)
3
E/A(+)
4
DEAD TIME
CONTROL
21
VREF
14
Vcc
1
V5
DET
9
1.25V
Vref
Start
Up
INTERNAL
BIAS
COMP2
DEAD TIME
CONTROLER
0.1V
R
Q
S
Delay
Controller
1.4V
OVP COMP
Vref
V5
Vref
Ichag
PG
GENERATOR
COMP3
1.8V
!"
0.6V
1.8V
!"
0.6V
1.25V
10
T
PG
19
T
UVP
UVP COMP
1.25V
20
GND
24
C1
22
C2
23
E
5
T
REM
6
REM
(PS-ON)
11
PG
18
PT
17
V12
16
V5
15
V3.3
ADSolute Maximum Ratings
Parameter
Supply voltage
Collector output voltage
Collector output current
Power dissipation(KA3511DS)
Operating temperature
Storage temperature
Symbol
V
CC
V
C1
, V
C2
I
C1
, I
C2
P
D
T
OPR
T
STG
Temperature Characteristics
Parameter
Temperature coefficient of Vref (-25
°
C
≤
Ta
≤
85
°
C)
Symbol
∆
Vref/
∆
T
Value
Unit
40
V
40
V
200
mA
1.5
W
−
25 to 85
°
C
−
65 to 150
°
C
Min.
-
Typ.
0.01
Max.
-
Unit
%/
°
C
2
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