FSL137H データシートの表示（PDF） - Fairchild Semiconductor
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FSL137H Datasheet PDF : 15 Pages
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Electrical Characteristics (Continued)
VDD=15V, TA=25°C unless otherwise specified.
Symbol
Parameter
VIN Section
VIN-ON PWM Turn-on Threshold Voltage
VIN-RL Release Latch Voltage
VIN-H
Pull HIGH Latch Trigger Level
tIN-H
Pull HIGH Latch Debounce Time
VIN-L
Pull LOW Auto Recovery Trigger Level
Feedback Input Section
AV
FB Voltage to Current-Sense Attenuation
ZFB
Input Impedance
VFB-OPEN Output High Voltage
VFB-OLP FB Open-Loop Trigger Level
tD-OLP
Delay Time of FB Pin Open-loop
Protection
VFB-N Green-Mode Entry FB Voltage
VFB-G Green-Mode Ending FB Voltage
VFB-ZDC Zero Duty Cycle FB Voltage
PWM Frequency
Conditions
fOSC
Min. Typ. Max. Unit
0.98 1.03 1.08
V
0.65 0.70 0.75
V
4.9
5.2
5.5
V
100
µs
0.2
0.3
0.4
V
1/4.0
V/V
9.5
kΩ
5
V
4.4
4.6
4.8
V
50
56
59
ms
2.3
2.5
2.7
V
VFB-N -
0.1
V
1.9
2.1
2.3
V
fOSC-G
VFB-ZDC VFB-G
VFB-N
VFB
Figure 4. VFB vs. PWM Frequency
Symbol
Parameter
Conditions Min.
Current-Sense Section
ILIM at VIN = 1.2V Peak Current Limit
VIN = 1.2V
0.74
ILIM at VIN = 3.6V Peak Current Limit
tSS
Period during Soft Startup Time(11)
VIN = 3.6V
0.64
4.5
Over-Temperature Protection Section (OTP)
TOTP
Protection Junction Temperature(11,13)
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.
Typ.
0.84
0.74
5.0
142
Max.
0.94
0.84
5.5
Unit
A
A
ms
°C
© 2009 Fairchild Semiconductor Corporation
FSL137H Rev. 1.0.3
6
www.fairchildsemi.com
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