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FSBH0F70WA View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
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FSBH0F70WA
Fairchild
Fairchild Semiconductor Fairchild
FSBH0F70WA Datasheet PDF : 14 Pages
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Electrical Characteristics (Continued)
VDD=15V and TA=25°C unless otherwise specified.
Symbol
Parameter
Condition Min. Typ. Max. Unit
VFB-N
VFB-G
VFB-ZDC
VFB-OLP
Green-Mode Entry FB Voltage
Green-Mode Ending FB Voltage
Zero Duty Cycle FB Voltage
FB Open-Loop
Trigger Level
FSBH0F70WA
FSBH0x7W
2.3
2.5
2.7
V
1.9
2.0
2.1
V
1.6
V
5.2
5.4
5.6
V
4.4
4.6
4.8
tD-OLP
FB Open-Loop Protection Delay
Current-Sense Section(15)
50
56
59
ms
FSBH0F70WA
ILIM
Peak Current Limit FSBH0170W
FSBH0270W
tSS
Period During Soft-Start Time(11)
VIN Open
VIN=1.2V
VIN=1.2V
0.63
0.73
0.83
0.70
0.80
0.90
A
0.90
1.00
1.10
4.5
5.0
5.5
ms
Constant Power Limit (FSBH0170W & FSBH0270W)
VLMT1
VLMT2
Threshold Voltage 1 for Current Limit
Threshold Voltage 2 for Current Limit
VIN=1.2V
VIN=3.6V
0.73
0.80
0.87
V
0.56
0.63
0.70
V
Constant Power Limit (FSBH0F70WA)
VLMT
Threshold Voltage for Current Limit
0.97
1.00
1.03
V
Over-Temperature Protection Section (OTP)
TOTP
TRESTART
Protection Junction Temperature(11,13)
Restart Junction Temperature(11,14)
+135 +142 +150
°C
TOTP-25
°C
Notes:
11. These parameters, although guaranteed, are not 100% tested in production.
12. Pulse test: pulse width 300µs, duty 2%.
13. When activated, the output is disabled and the latch is turned off.
14. The threshold temperature for enabling the output again and resetting the latch after over-temperature protection
has been activated.
15. These parameters, although guaranteed, are tested in wafer process.
Figure 5. VFB vs. PWM Frequency
© 2011 Fairchild Semiconductor Corporation
FSBH0F70WA/0170W/0270W • Rev. 1.0.2
8
www.fairchildsemi.com
 

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