SSC1S311A Просмотр технического описания (PDF) - Sanken Electric co.,ltd.
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SSC1S311A Datasheet PDF : 28 Pages
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SSC1S311A
2. Electrical Characteristics
Current polarities are defined as follows: current going into the IC (sinking) is positive current (+); current coming out
of the IC (sourcing) is negative current (−).
Unless specifically noted, TA = 25 °C, VCC = 20 V.
Parameter
Symbol Conditions Pins Min. Typ. Max. Unit
Power Supply Startup Operation
Operation Start Voltage
Operation Stop Voltage(1)
VCC(ON)
VCC(OFF)
7−8 13.8 15.1 17.3
V
7−8
8.4
9.4
10.7
V
Circuit Current in Operation
ICC(ON)
7−8
―
1.3
3.7
mA
Circuit Current in Non-Operation
ICC(OFF) VCC = 13 V
7−8
―
4.5
50
μA
Startup Circuit Operation Voltage
VSTART(ON)
4−8
18
21
24
V
Startup Current
Startup Current Supply Threshold
Voltage(1)
PWM Operation Frequency
ICC(STARTUP) VCC = 13 V
7−8
−4.5
−3.1
−1.0
mA
VCC(BIAS)
7−8
9.5
11.0 12.5
V
fOSC
5−8 18.4 21.0 24.4 kHz
Soft-Start Operation Period
tSS
5−8
―
6.05
―
ms
Normal Operation
Bottom-Skip Operation Threshold
Voltage 1
Bottom-Skip Operation Threshold
Voltage 2
Quasi-Resonant Operation Threshold
Voltage 1(2)
Quasi-Resonant Operation Threshold
Voltage 2(2)
Maximum Feedback Current
VOCP(BS1)
VOCP(BS2)
VBD(TH1)
VBD(TH2)
IFB(MAX)
6−8 0.487 0.572 0.665 V
6−8 0.200 0.289 0.380 V
2−8 0.14 0.24 0.34
V
2−8 0.07 0.17 0.27
V
1−8 −320 −205 −120 μA
Standby Operation
Standby Operation Threshold Voltage
VFB(STBOP)
1−8 0.45 0.80 1.15
V
Protection Operation
Maximum On-time
tON(MAX)
5−8 30.0 40.0 50.0
µs
Leading Edge Blanking Time
tBW
5−8
―
495
―
ns
Overcurrent Detection Threshold Voltage
(Normal Operation)
VOCP(H)
6−8 0.820 0.910 1.000 V
Overcurrent Detection Threshold Voltage
(Input Compensation in Operation)
VOCP(L)
VBD = −3 V
6−8
0.560 0.660 0.760
V
BD Pin Current
IBD(O)
VBD = −3 V 2−8
−250
−83
−30
μA
OLP Bias Current
IFB(OLP) VFB/OLP = 5V 1−8
−15
−10
−5
μA
OLP Threshold Voltage
VFB(OLP)
1−8 5.50 5.96 6.40
V
Circuit Current after OLP
ICC(OLP)
7−8
―
575
―
μA
VCC Pin OVP Threshold Voltage
VCC(OVP)
7−8 28.5 31.5 34.0
V
FB Pin Maximum Voltage in Feedback
Operation
VFB(MAX) IFB = −12µA 1−8
3.70
4.05
4.40
V
(1) VCC(BIAS) > VCC(OFF)
(2) VBD(TH1) > VBD(TH2)
SSC1S311A-DSE Rev.1.3
SANKEN ELECTRIC CO., LTD.
4
Dec. 22, 2017
http://www.sanken-ele.co.jp/en
© SANKEN ELECTRIC CO., LTD. 2012
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