CAT4139_16 Datasheet, PDF (3/13 Pages) ON Semiconductor – 22V High Current Boost White LED Driver

CAT4139
Table 3. DC ELECTRICAL CHARACTERISTICS
(V_IN = 3.6 V, ambient temperature of 25°C (over recommended operating conditions unless otherwise specified))
Symbol
Parameter
Test Conditions
Min
Typ
Max Units
I_Q
Operating Current
I_SD
Shutdown Current
V_FB
FB Pin Voltage
I_FB
FB pin input leakage
I_LED
Programmed LED Current
V_FB = 0.2 V
V_FB = 0.4 V (not switching)
V_SHDN = 0 V
9 x 3 LEDs, I_OUT = 180 mA
R1 = 10 W
R1 = 3 W
0.6
1.5
mA
0.1
0.6
0.1
1
mA
285
300
315
mV
1
mA
28.5
30
31.5
mA
100
V_IH
SHDN Logic High
V_IL
SHDN Logic Low
Enable Threshold Level
Shutdown Threshold Level
0.8
1.5
V
0.4
0.7
F_SW
I_LIM
Switching Frequency
Switch Current Limit
V_IN = 3.6 V
V_IN = 5 V
0.8
1.0
1.3
MHz
600
mA
750
R_SW
I_LEAK
T_SD
T_HYST
V_UVLO
V_OV−DET
V_OCL
DC
Switch “On” Resistance
Switch Leakage Current
Thermal Shutdown
Thermal Hysteresis
Under−voltage lock out (UVLO) Threshold
Over−voltage detection threshold
Output Clamp voltage
Maximum duty cycle
Minimum duty cycle
I_SW = 100 mA
Switch Off, V_SW = 5 V
“Open LED”
1.0
2.0
W
1
5
mA
150
°C
20
°C
1.9
V
23
24
V
29
V
92
%
16
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
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