參數(shù)資料
型號(hào)： KA3S1265RD-YDTU
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： Fairchild Power Switch(FPS)
中文描述： 48 A SWITCHING REGULATOR, 150 kHz SWITCHING FREQ-MAX, PZFM5
封裝： TO-3P, 5 PIN
文件頁(yè)數(shù)： 4/12頁(yè)
文件大?。?/td> 145K
代理商： KA3S1265RD-YDTU
KA3S1265R/KA3S1265RF/KA3S1265RD
4
Electrical Charcteristics (CONTROL part)
(Ta = 25
°
C unless otherwise specified)
Note:
1. These parameters, although guaranteed, are not 100% tested in production
2. These parameters, although guaranteed, are tested in EDS(water test) process
3.The amplitude of the sync. pulse is recommended to be between 2V and 3V for stable sync. function.
Characteristic
Symbol
Test condition
Min.
Typ.
Max.
Unit
UVLO SECTION
Start threshold voltage
Stop threshold voltage
OSCILLATOR SECTION
Initial accuracy
Frequency change with temperature
(2)
Maximum duty cycle
FEEDBACK SECTION
Feedback source current
Shutdown feedback voltage
Shutdown delay current
SYNC. & SOFT START SECTION
V
START
V
STOP
-
14
9
15
10
16
11
V
V
After turn on
FOSC
F/
T
Dmax
Ta=25
°
C
25
°
C
≤
Ta
≤
+85
°
C
18
-
92
20
±
5
95
22
±
10
98
kHz
%
%
-
I
FB
V
SD
I
delay
Ta=25
°
C, Vfb=GND
0.8
6.9
1.4
1
1.2
8.1
2.2
mA
V
μ
A
-
7.5
1.8
Ta=25
°
C, 5V
≤
Vfb
≤
V
SD
Soft start voltage
Soft start current
Sync threshold voltage
Sync threshold voltage(ON)
(3)
Sync threshold voltage(OFF)
(3)
REFERENCE SECTION
Output voltage
(1)
Temperature stability
(1)(2)
CURRENT LIMIT (SELF-PROTECTION) SECTION
Peak Current Limit
PROTECTION SECTION
Thermal shutdown temperature (Tj)
(1)
TOTAL DEVICE SECTION
Start Up current
Operating supply current
(Control Part Only)
V
cc
Zener voltage
V
SS
I
SS
V
SYTH
V
SYTH(ON)
V
SYTH(OFF)
V
FB
=2V
Sync & S/S=GND
KA3S1265R,KA3S1265RF
4.7
0.8
6.0
6.86
5.92
5.0
-
6.4
7.23
6.23
5.4
-
6.8
7.60
6.54
V
mA
V
KA3S1265RD
Vref
Vref/
T
Ta=25
°
C
25
°
C
≤
Ta
≤
+85
°
C
4.80
-
5.00
0.3
5.20
0.6
V
mV/
°
C
I
OVER
Max. inductor current
7.04
8.00
8.96
A
T
SD
-
140
160
-
°
C
I
START
V
CC
=14V
0.1
0.3
0.55
mA
I
OP
Ta=25
°
C
6
12
18
mA
V
Z
I
CC
=20mA
30
32.5
35
V
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