參數(shù)資料
型號: KA3S0680RB
廠商: Fairchild Semiconductor Corporation
英文描述: Fairchild Power Switch(FPS)
中文描述: 飛兆半導(dǎo)體功率開關(guān)(FPS)
文件頁數(shù): 4/12頁
文件大?。?/td> 143K
代理商: KA3S0680RB
KA3S0680RB/KA3S0680RFB
4
Electrical Charcteristics (SFET part) (Continued)
(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 operating 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
Soft start voltage
Soft start current
Sync threshold voltage
(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)
Over voltage protection voltage
TOTAL DEVICE SECTION
Start Up current
Operating supply current
(control part only)
V
CC
zener voltage
V
START
V
STOP
-
14
9
15
10
16
11
V
V
After turn on
F
OSC
F/
T
D
MAX
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
0.7
6.9
1.4
0.9
7.5
1.8
1.1
8.1
2.2
mA
V
μ
A
-
Ta = 25
°
C, 5V
Vfb
V
SD
V
SS
I
SS
V
SYTH
V
FB
= 2V
Sync & S/S = GND
Vfb = 5V
4.7
0.8
6.0
5.0
1.0
6.4
5.3
1.2
6.8
V
mA
V
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
3.52
4.00
4.48
A
T
SD
V
OVP
-
-
140
23
160
25
-
°
C
V
28
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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