FSBH0170/A FAIRCHILD [Fairchild Semiconductor], FSBH0170/A Datasheet - Page 8

• Manufacturer Part Number: FSBH0170/A
• Manufacturer: FAIRCHILD [Fairchild Semiconductor]

© 2009 Fairchild Semiconductor Corporation
FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370 • Rev. 1.0.1
Electrical Characteristics
V
Current-Sense Section
Constant Power Limit (FSBH0170, FSBH0270, FSBH0370)
Current Limit (FSBH0F70A, FSBH0170A, FSBH0270A)
Over-Temperature Protection Section (OTP)
Notes:
9.
10. Pulse test: pulse width ≤ 300μs, duty ≤ 2%.
11. When activated, the output is disabled and the latch is turned off.
12. The threshold temperature for enabling the output again and resetting the latch after over-temperature
13. These parameters, although guaranteed, are tested in wafer process.
DD
Symbol
V
T
V
V
RESTART
t
V
V
FB-OPEN
V
V
=15V and T
V
T
FB-ZDC
FB-OLP
D-OLP
I
These parameters, although guaranteed, are not 100% tested in production.
protection has been activated.
t
LMT1
LMT2
FB-G
FB-N
LIM
OTP
LMT
SS
Output High Voltage
Green-Mode Entry FB Voltage
Green-Mode Ending FB Voltage
Zero Duty Cycle FB Voltage
FB Open-Loop
Trigger Level
FB Open-Loop Protection Delay
Peak Current Limit
Period During Soft-Start Time
Threshold Voltage 1 for Current Limit
Threshold Voltage 2 for Current Limit
Threshold Voltage for Current Limit
Protection Junction Temperature
Restart Junction Temperature
A
=25°C unless otherwise specified.
(13)
PWM Frequency
Parameter
f
f
OSC
OSC-G
(Continued)
FSBH0F70A
FSBH0x70/A
FSBH0F70A
FSBH0170/A
FSBH0270/A
FSBH0370
V
Figure 5. V
FB-ZDC
(9)
(9, 12)
V
(9, 11)
FB-G
FB
vs. PWM Frequency
FB Pin Open
V
V
V
V
V
V
FSBH0F70A
FSBH0170A/0270A
8
IN
IN
IN
IN
IN
IN
=1.2V / V
=1.2V / V
=1.2V
=1.2V
=3.6V
Open
Condition
V
FB-N
IN
IN
Open
Open
+135
Min.
0.63
0.70
0.90
1.10
0.73
0.56
0.97
0.77
5.5
2.3
1.9
5.2
4.4
4.5
50
V
FB
T
Typ.
+142
OTP
0.73
0.80
1.00
1.20
0.80
0.63
1.00
0.80
2.5
2.0
1.6
5.4
4.6
5.0
56
-25
Max.
+150
0.83
0.90
1.10
1.30
0.87
0.70
1.03
0.83
2.7
2.1
5.6
4.8
5.5
59
www.fairchildsemi.com
Unit
ms
ms
°C
°C
V
V
V
V
V
V
A
V
V
V
V