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IR21571 Fiches technique(PDF) 5 Page - International Rectifier

No de pièce IR21571
Description  FULLY INTEGRATED BALLAST CONTROL IC
PDF  18 Pages
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Fabricant  IRF [International Rectifier]
Site Internet  http://www.irf.com
Logo IRF - International Rectifier

IR21571 Fiches technique(HTML) 5 Page - International Rectifier

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IR21571(S) & (PbF)
www.irf.com
5
Electrical Characteristics (cont.)
VCC = VBS = VBIAS = 14V +/- 0.25V, RT = 40.0kΩ, CT = 470 pF, RPH and RUN leads no connection, VCPH = 0.0V,
RDT = 6.1kΩ, ROC = 20.0kΩ, VCS = 0.5V, VSD = 0.0V, CL = 1000pF, TA = 25
oC unless otherwise specified.
RUN
Characteristics
Symbol Definition
Min.
Typ.
Max.
Units
Test Conditions
IRUNLK
Open circuit RUN lead leakage current
—
0.01
0.1
µAVRUN = 5V
VRUNFLT Fault-mode RUN lead voltage
—
0
50
mV
SD = 5V, CS = 2V,
or Tj > TSD
Symbol Definition
Min.
Typ.
Max.
Units
Test Conditions
VOL
Low-level output voltage
—
0
100
Io = 0
VOH
High level output voltage
—
0
100
VBIAS - VO, Io = 0
tr
Turn-on rise time
55
85
150
tf
Turn-off fall time
35
45
100
Gate Driver Output Characteristics
mV
nsec
Note 4:
When the IC senses an overtemperature condition (Tj > 160ºC), the IC is latched off. In order to reset this
Fault Latch, the SD lead must be cycled high and then low, or the VCC supply to the IC must be cycled below
the falling undervoltage lockout threshold (VCCUV-).
Protection Circuitry Characteristics
Symbol Definition
Min.
Typ.
Max.
Units
Test Conditions
VSD+
Rising shutdown lead threshold voltage
1.9
2.1
2.3
V
VSDHYS
Shutdown pin threshold hysteresis
100
150
200
mV
VCS+
Over-current sense threshold voltage
0.99
1.10
1.21
VCS-
Under-current sense threshold voltage
0.15
0.2
0.26
TCS
Over-current sense propogation delay
100
250
400
nsec
Delay from CS to LO
VDC+
Low VBUS/rectified line input upper threshold
5.0
5.20
5.6
VDC-
Low VBUS/rectified line input lower threshold
2.85
3.3
3.3
TSD
Thermal shutdown junction temperature
150
160
170
oC
Note 4
V
V



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