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| W-6139 Datasheet, PDF (3/13 Pages) Copal Electronics – 22 V High Current Boost | |||
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W-6139
Table 3. DC ELECTRICAL CHARACTERISTICS
(VIN = 3.6 V, ambient temperature of 25$C (over recommended operating conditions unless otherwise specified))
Symbol
Parameter
Test Conditions
Min
Typ
IQ
Operating Current
ISD
Shutdown Current
VFB
FB Pin Voltage
IFB
FB pin input leakage
ILED
Programmed LED Current
VFB = 0.2 V
VFB = 0.4 V (not switching)
VSHDN = 0 V
9 x 3 LEDs, IOUT = 180 mA
R1 = 10
R1 = 3
0.6
0.1
0.1
285
300
28.5
30
100
VIH
SHDN Logic High
VIL
SHDN Logic Low
FSW
Switching Frequency
ILIM
Switch Current Limit
RSW
ILEAK
TSD
THYST
VUVLO
VOVïDET
VOCL
DC
Switch âOnâ Resistance
Switch Leakage Current
Thermal Shutdown
Thermal Hysteresis
Underïvoltage lock out (UVLO) Threshold
Overïvoltage detection threshold
Output Clamp voltage
Maximum duty cycle
Minimum duty cycle
Enable Threshold Level
Shutdown Threshold Level
VIN = 3.6 V
VIN = 5 V
ISW = 100 mA
Switch Off, VSW = 5 V
âOpen LEDâ
0.8
0.4
0.7
0.8
1.0
600
750
1.0
1
150
20
1.9
23
24
29
92
16
Max Units
1.5
mA
0.6
1
A
315
mV
1
A
31.5
mA
1.5
V
1.3
MHz
mA
2.0
5
A
$C
$C
V
V
V
%
3
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