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SM8205 Datasheet(PDF) 4 Page - M.S. Kennedy Corporation

Part # SM8205
Description  High-Power LED Driver with Integrated PWM Dimming MOSFET Driver
PDF  13 Pages
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Manufacturer  MSK [M.S. Kennedy Corporation]
Direct Link  http://www.mskennedy.com
Logo MSK - M.S. Kennedy Corporation

SM8205 Datasheet(HTML) 4 Page - M.S. Kennedy Corporation

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ELECTRICAL CHARACTERISTICS
The typically testing values are at VIN=12V, TA=25℃,Unless otherwise noted.
SM8205
Symbol
Parameter
Min
Typ
Max
Units Conditions
PWM Dimming
VPWMD(Lo)
0.8
-
V
-
VPWMD(Hi)
PWM input Low voltage
PWM input High voltage
2.0
V
-
-
RPWMD
PWM pin pull-down resistance
90
100
130
KΩ
Over Voltage Protection
VOVP
Over-voltage threshold
1.15
1.20
1.25
V
OVP rising
Oscillator
Fosc
Switching frequency
RT=910KΩ
RT=300KΩ
KHz
KHz
100
300
110
90
330
270
DMAX
Maximum duty cycle
92
%
-
-
Error Amplifier
GB
Gain bandwidth product
2.5
MHz
-
-
75pF capacitance at
COMP pin
AV
Open loop gain
73
-
-
dB
Output open
(Note1)
VO
Output voltage range
VCC=5.0V
0.3
4.95
-
gm
Transconductance
630
-
-
V
uA/V
Gate Driver
IG-SOURCE
IG-SINK
Gate short-circuit current
Gate sinking current
60
310
mA
mA
-
-
-
-
VGATE=0V, VDD=10V
VGATE=10V, VDD=10V
TG-RISE
TG-FALL
Gate driver output rise time
Gate driver output fall time
35
ns
50
-
-
20
35
ns
CL=1000pF, VDD=10V
CL=1000pF, VDD=10V
IF-SOURCE
Fault pin short-circuit current
45
mA
-
-
-
-
mA
60
IF-SINK
Fault sinking current
VFAULT=0V, VDD=10V
VFAULT=10V, VDD=10V
TF-RISE
TF-FALL
Fault driver output rise time
Fault driver output fall time
CL=1000pF, VDD=10V
CL=1000pF, VDD=10V
165
ns
ns
145
Slope Compensation
VSC (PEAK) SC pin peak voltage
1.5
V
RT=910KΩ, RSLOPE=30KΩ
-
-
-
-
-
-
ISLOPE
Current source out of SC pin
0
100
-
uA
GSLOPE
Internal current mirror ratio
1.8
2
2.2
RCS=1KΩ, RSLOPE=30KΩ
Output Short-Circuit
TOFF(S.C)
Propagation time for short-circuit detection
ns
200
-
-
IREF=400mV, FDBK=0-1V,
Fault goes from high to
low
GIREF
Amplifier gain at IREF pin
IREF=400mV
2
2.1
1.7
-
-
(continued)
Current Sense
TPD
Propagation delay time
150
-
-
ns
OVP=0-2V step
TBLANK
Leading edge blanking
100
ns
-
-
TDELAY
Delay to output of PWM comparator
150
ns
-
-
COMP=CLIM=VCC,
VCS=0-600mV Step
Thermal Protection
TSD
THYS
Thermal shutdown temperature
Thermal shutdown hysteresis
140
℃
40
℃
-
-
-
-
Note1: Guaranteed by design
4
www.samhop.com.tw
Rev. 2.0 @ 2011/10



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