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FSBH0270NY Datasheet(PDF) 8 Page - Fairchild Semiconductor

No. de pieza FSBH0270NY
Descripción Electrónicos  Green Mode Fairchild Power Switch
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Fabricante Electrónico  FAIRCHILD [Fairchild Semiconductor]
Página de inicio  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FSBH0270NY Datasheet(HTML) 8 Page - Fairchild Semiconductor

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© 2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370 • Rev. 1.0.3
8
Electrical Characteristics (Continued)
VDD=15V and TA=25°C unless otherwise specified.
Symbol
Parameter
Condition
Min.
Typ.
Max.
Unit
VFB-OPEN
Output High Voltage
FB Pin Open
5.5
V
VFB-N
Green-Mode Entry FB Voltage
2.3
2.5
2.7
V
VFB-G
Green-Mode Ending FB Voltage
1.9
2.0
2.1
V
VFB-ZDC
Zero Duty Cycle FB Voltage
1.6
V
VFB-OLP
FB Open-Loop
Trigger Level
FSBH0F70A
5.2
5.4
5.6
V
FSBH0x70/A
4.4
4.6
4.8
V
tD-OLP
FB Open-Loop Protection Delay
50
56
59
ms
Current-Sense Section
(14)
ILIM
Peak Current Limit
FSBH0F70A
VIN Open
0.63
0.73
0.83
A
FSBH0170/A
VIN = 1.2V / VIN Open
0.70
0.80
0.90
FSBH0270/A
VIN = 1.2V / VIN Open
0.90
1.00
1.10
FSBH0370
VIN = 1.2V
1.10
1.20
1.30
tSS
Period During Soft-Start Time
(10)
4.5
5.0
5.5
ms
Constant Power Limit (FSBH0170, FSBH0270, FSBH0370)
VLMT1
Threshold Voltage 1 for Current Limit
VIN = 1.2V
0.73
0.80
0.87
V
VLMT2
Threshold Voltage 2 for Current Limit
VIN = 3.6V
0.56
0.63
0.70
V
Current Limit (FSBH0F70A, FSBH0170A, FSBH0270A)
VLMT
Threshold Voltage for Current Limit
FSBH0F70A
0.97
1.00
1.03
V
FSBH0170A/0270A
0.77
0.80
0.83
V
Over-Temperature Protection Section (OTP)
TOTP
Protection Junction Temperature
(10, 12)
+135
+142
+150
°C
TRESTART
Restart Junction Temperature
(10, 13)
TOTP-25
°C
Notes:
10. These parameters, although guaranteed, are not 100% tested in production.
11. Pulse test: pulse width ≤ 300ìs, duty ≤ 2%.
12. When activated, the output is disabled and the latch is turned off.
13. The threshold temperature for enabling the output again and resetting the latch after over-temperature
protection has been activated.
14. These parameters, although guaranteed, are tested in wafer process.
Figure 5. VFB vs. PWM Frequency
PWM Frequency
fOSC
fOSC-G
VFB-N
VFB-G
VFB-ZDC
VFB


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