FSFR1800XSL データシートの表示（PDF） - Fairchild Semiconductor
部品番号
コンポーネント説明
メーカー
FSFR1800XSL Datasheet PDF : 14 Pages
| |||
Electrical Characteristics (Continued)
TA=25°C unless otherwise specified.
Symbol
Parameter
Test Conditions
UVLO Section
LVCCUV+ LVCC Supply Under-Voltage Positive Going Threshold (LVCC Start)
LVCCUV- LVCC Supply Under-Voltage Negative Going Threshold (LVCC Stop)
LVCCUVH LVCC Supply Under-Voltage Hysteresis
HVCCUV+ HVCC Supply Under-Voltage Positive Going Threshold (HVCC Start)
HVCCUV- HVCC Supply Under-Voltage Negative Going Threshold (HVCC Stop)
HVCCUVH HVCC Supply Under-Voltage Hysteresis
Oscillator & Feedback Section
Min.
11.2
8.9
8.2
7.8
VRT
V-I Converter Threshold Voltage
1.5
fOSC
Output Oscillation Frequency
RT=5.2KΩ
94
DC
Output Duty Cycle
48
fSS
Internal Soft-Start Initial Frequency
fSS=fOSC+40kHz,
RT=5.2KΩ
tSS
Internal Soft-Start Time
2
Protection Section
VCssH Beginning Voltage to Discharge CSS
0.9
VCssL
Beginning Voltage to Charge CSS and
Restart
0.16
VOVP
LVCC Over-Voltage Protection
LVCC > 21V
21
VAOCP AOCP Threshold Voltage
-1.0
tBAO
AOCP Blanking Time(6)
VCS < VAOCP
VOCP
tBO
OCP Threshold Voltage
OCP Blanking Time(6)
VCS < VOCP
-0.64
1.0
tDA
Delay Time (Low Side) Detecting from
VAOCP to Switch Off(6)
TSD
Thermal Shutdown Temperature(6)
120
Dead-Time Control Section
DT
Dead Time(7)
Notes:
6. This parameter, although guaranteed, is not tested in production.
7. These parameters, although guaranteed, are tested only in EDS (wafer test) process.
Typ.
12.5
10.0
2.50
9.2
8.7
0.5
2.0
100
50
140
3
1.0
0.20
23
-0.9
50
-0.58
1.5
250
135
350
Max. Unit
13.8 V
11.1 V
V
10.2 V
9.6
V
V
2.5
V
106 KHz
52
%
KHz
4
ms
1.1
V
0.24 V
25
V
-0.8 V
ns
-0.52 V
2.0 μs
400 ns
150 °C
ns
© 2010 Fairchild Semiconductor Corporation
FSFR-XS Series • Rev.1.0.1
6
www.fairchildsemi.com
Share Link: 