STR6251 Ver la hoja de datos (PDF) - Sanken Electric co.,ltd.
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STR6251 Datasheet PDF : 13 Pages
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STR-W6251D,
STR-W6252D, and
STR-W6253D
PWM Off-Line Switching Regulator ICs
Electrical Characteristics of Control Part Unless specifically noted, TA is 25°C, VCC = 18 V
Characteristic
Symbol
Pin
Min.
Typ.
Power Supply Startup Operation
Operation Start Voltage
Operation Stop Voltage
Circuit Current in Operation
Circuit Current in Non-Oscillation
Circuit Current in Non-Operation
Startup Current
Bias Assist Voltage
Normal Operation
VCC(ON)
4-5
VCC(OFF)
4-5
ICC(ON)
4-5
ICC(STOP)
4-5
ICC(OFF)
4-5
ISTARTUP
4-5
VCC(BIAS)
4-5
13.9
15.5
8.0
8.9
–
1.4
–
0.8
–
5
–0.9
–1.6
13.6
15.2
FM/ELP Pin High Threshold Voltage
FM/ELP Pin Low Threshold Voltage
FM/ELP Pin Voltage Difference
FM/ELP Pin Source Current
FM/ELP Pin Sink Current
Average Switching Frequency
Frequency Modulation Deviation
VFM(H)
7-5
4.0
4.5
VFM(L)
7-5
2.4
2.8
∆VFM
7-5
1.4
1.7
IFM(SRC)
7-5
–17.4
–13
IFM(SNK)
7-5
8.6
13
fOSC(AVG)
1-5
60
67
∆f
1-5
4.8
6.9
Maximum Duty Cycle (On-duty)
DMAX
1-5
FB Pin Maximum Feedback Current
IFB(MAX)
6-5
Standby Operation Startup Voltage
VSTBY
6-5
Slope Compensation Startup Duty Cycle
DSLP
6-5
Slope Compensation Rate
SLP
6-5
71
–220
0.99
–
–22
75
–160
1.10
27
–17
Protection Operation
OCP Threshold Voltage at Zero Duty Cycle
(0% On-duty)
VOCP1
3-5
Drain Peak Current Compensation Coefficient
DPC
–
OCP Threshold Voltage After Compensation
VOCP2
3-5
LEB Time
tBW
1-5
OLP Delay Time*
tDLY
1-5
Circuit Current in OLP-Operation
ICC(OLP)
4-5
OVP Threshold Voltage
VCC(OVP)
4-5
Latch Circuit Holding Current
ICC(La.H)
4-5
Latch Circuit Release Voltage
VCC(La.OFF)
4-5
ELP Threshold Voltage
VELP
7-5
Sink Current in ELP Operation
IELP
7-5
Thermal Shutdown Activating Temperature
TJ(TSD)
–
*Reference value of 47 nF capacitor between FM/ELP and GND Pins.
0.71
0.78
1.5
1.9
0.82
0.93
280
400
–
200
–
410
27
28.5
–
140
6.4
7.1
6.4
7.1
–
55
135
–
Max
17.1
9.8
2.8
1.3
20
–2.3
16.8
5.0
3.2
1.8
–8.6
17.4
74
9
79
–100
1.21
–
–12
0.86
2.3
1.04
520
–
700
30
220
7.8
7.8
100
–
Unit
V
V
mA
mA
μA
mA
V
V
V
V
μA
μA
kHz
kHz
%
μA
V
%
mV/μs
V
mV/D%
V
ns
ms
μA
V
μA
V
V
μA
°C
STR-W6200D-DS
SANKEN ELECTRIC CO., LTD.
4
November 12, 2012
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