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FSDH321 Datasheet(PDF) 5 Page - Fairchild Semiconductor

Part No. FSDH321
Description  Green Mode Fairchild Power Switch (FPS TM)
Download  20 Pages
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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FSDH321 Datasheet(HTML) 5 Page - Fairchild Semiconductor

 
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FSDH321, FSDL321
5
Electrical Characteristics
(Ta = 25
°C unless otherwise specified)
Note:
1. Pulse test: Pulse width ≤ 300us, duty ≤ 2%
2. These parameters, although guaranteed, are tested in EDS (wafer test) process
3. These parameters, although guaranteed, are not 100% tested in production
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
SENSE FET SECTION
Zero-Gate-Voltage Drain Current
IDSS
VDS=650V, VGS=0V
-
-
25
µA
VDS=520V, VGS=0V, TC=125°C
-
-
200
Drain-Source On-State Resistance
RDS(ON)
VGS=10V, ID=0.5A
-
14
19
Forward Trans-Conductance(1)
gfs
VDS=50V, ID=0.5A
1.0
1.3
-
S
Input Capacitance
CISS
VGS=0V, VDS=25V,
f=1MHz
-
162
-
pF
Output Capacitance
COSS
-18-
Reverse Transfer Capacitance
CRSS
-3.8
-
Turn-On Delay Time
td(on)
VDS=325V, ID=1.0A
-9.5
-
ns
Rise Time
tr
-19-
Turn-Off Delay Time
td(off)
-33-
Fall Time
tf
-
42
-
Total Gate Charge
Qg
VGS=10V, ID=1.0A,
VDS=325V
-7.0
-
nC
Gate-Source Charge
Qgs
-3.1
-
Gate-Drain (Miller) Charge
Qgd
-0.4
-
CONTROL SECTION
Switching Frequency
fOSC
FSDH321
90
100
110
KHz
Switching Frequency Modulation
∆fMOD
±2.5
±3.0
±3.5
KHz
Switching Frequency
fOSC
FSDL321
45
50
55
KHz
Switching Frequency Modulation
∆fMOD
±1.0
±1.5
±2.0
KHz
Switching Frequency Variation(2)
∆fOSC
-25
°C ≤ Ta ≤ 85°C
-
±5
±10
%
Maximum Duty Cycle
DMAX
FSDH321
62
67
72
%
FSDL321
71
77
83
%
UVLO Threshold Voltage
VSTART
VFB=GND
11
12
13
V
VSTOP
VFB=GND
7
8
9
V
Feedback Source Current
IFB
VFB=GND
0.7
0.9
1.1
mA
Internal Soft Start Time
tS/S
VFB=4V
10
15
20
ms
BURST MODE SECTION
Burst Mode Voltage
VBURH
Tj=25
°C
0.4
0.5
0.6
V
VBURL
0.25
0.35
0.45
V
VBUR(HYS) Hysteresis
-
150
-
mV
PROTECTION SECTION
Peak Current Limit
ILIM
Tj=25
°C, ∆i/∆t=250mA/us 0.60
0.70
0.80
A
Current Limit Delay Time(3)
tCLD
Tj=25
°C
-
600
-
ns
Thermal Shutdown Temperature(3)
TSD
125
145
-
°C
Shutdown Feedback Voltage
VSD
5.5
6.0
6.5
V
Over Voltage Protection
VOVP
18
19
20
V
Shutdown Delay Current
IDELAY
VFB=4V
3.5
5.0
6.5
µA
Leading Edge Blanking Time
tLEB
200
-
-
ns
TOTAL DEVICE SECTION
Operating Supply Current (control part only)
IOP
VCC=14V, VFB=0V
1
3
5
mA
Start-Up Charging Current
ICH
VCC=0V
0.7
0.85
1.0
mA
Vstr Supply Voltage
VSTR
VCC=0V
35
-
-
V


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