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STR3A253 bảng dữ liệu(PDF) 4 Page - Sanken electric

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Giải thích chi tiết về linh kiện  Off-Line PWM Controllers with Integrated Power MOSFET
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nhà sản xuất  SANKEN [Sanken electric]
Trang chủ  http://www.sanken-ele.co.jp/en
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STR3A200 Series
STR3A200 - DSJ Rev.2.0
SANKEN ELECTRIC CO.,LTD.
4
May.18, 2015
http://www.sanken-ele.co.jp
© SANKEN ELECTRIC CO.,LTD. 2013
2.
Electrical Characteristics
● The polarity value for current specifies a sink as "+," and a source as "−," referencing the IC
● Unless otherwise specified, T
A = 25 °C, VCC = 18 V, 5 pin = 6 pin = 7 pin = 8 pin
Parameter
Symbol
Test
Conditions
Pins
Min.
Typ.
Max.
Units
Notes
Power Supply Startup Operation
Operation Start Voltage
VCC(ON)
2 − 3
13.8
15.0
16.2
V
Operation Stop Voltage
(1)
VCC(OFF)
2 − 3
7.6
8.5
9.2
V
Circuit Current in Operation
ICC(ON)
VCC = 12 V
2 − 3
1.7
2.3
mA
Startup Circuit Operation
Voltage
VST(ON)
8 − 3
40
47
55
V
Startup Current
ICC(ST)
VCC = 13.5
V
2 − 3
− 4.5
− 2.5
− 1.2
mA
Startup Current Biasing
Threshold Voltage
VCC(BIAS)
ICC=−500µA
2 − 3
8.0
9.6
10.5
V
Normal Operation
Average Switching Frequency
fOSC(AVG)
8 − 3
60
67
73
kHz
Switching Frequency
Modulation Deviation
Δf
8 − 3
5.4
kHz
Maximum Feedback Current
IFB(MAX)
VCC = 12 V
4 − 3
− 170
− 130
− 90
µA
Minimum Feedback Current
IFB(MIN)
4 − 3
− 21
− 13
− 5
µA
Standby Operation
Oscillation Stop FB Voltage
VFB(OFF)
4 − 3
1.06
1.16
1.26
V
3A251 / 51D
/53 / 53D
0.81
0.90
0.99
3A255 / 55D
Protection
Maximum ON Duty
DMAX
8 − 3
70
75
80
%
Leading Edge Blanking Time
tBW
330
ns
OCP Compensation Coefficient
DPC
17.3
mV/μs
OCP Compensation ON Duty
DDPC
36
%
OCP Threshold Voltage at
Zero ON Duty
VOCP(L)
1 − 3
0.735
0.795
0.855
V
OCP Threshold Voltage at
36% ON Duty
VOCP(H)
1 − 3
0.843
0.888
0.933
V
OCP Threshold Voltage During
LEB (tBW)
VOCP(LEB)
1 − 3
1.69
V
OLP Threshold Voltage
VFB(OLP)
VCC= 32V
4 − 3
6.8
7.3
7.8
V
OLP Operation Current
tOLP
55
75
90
ms
OLP Delay Time
ICC(OLP)
VCC= 12V
2 − 3
160
µA
FB/OLP Pin Clamp Voltage
VFB(CLAMP)
4 − 3
10.5
11.8
13.5
V
OVP Threshold Voltage
VCC(OVP)
2 − 3
27.0
29.1
31.2
V
(1) V
CC(BIAS) > VCC(OFF) always.


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