CAT4139 Datasheet, PDF (2/13 Pages) Catalyst Semiconductor – 22V High Current Boost White LED Driver

CAT4139
ABSOLUTE MAXIMUM RATINGS
Parameters
VIN, FB Voltage
S¯¯H¯D¯N¯ Voltage
SW Voltage
Storage Temperature Range
Junction Temperature Range
Lead Temperature
Ratings
-0.3 to +7
-0.3 to +7
-0.3 to 40
-65 to +160
-40 to +150
300
Units
V
V
V
ºC
ºC
ºC
RECOMMENDED OPERATING CONDITIONS
Typical application circuit with external components are shown on page 1.
Parameters
VIN
SW pin voltage
Ambient Temperature Range⁽¹⁾
Range
up to 5.5
0 to 22
-40 to +85
Units
V
V
ºC
DC ELECTRICAL CHARACTERISTICS
V_IN = 3.6V, ambient temperature of 25ºC (over recommended operating conditions unless specified otherwise).
Symbol Parameter
Test Conditions
Min
Typ Max Units
I_Q
I_SD
V_FB
I_FB
I_LED
V_IH
V_IL
F_SW
I_LIM
R_SW
I_LEAK
T_SD
T_HYST
V_UVLO
VOV-DET
V_OCL
DC
Operating Current
Shutdown Current
FB Pin Voltage
FB pin input leakage
Programmed LED Current
S¯¯H¯D¯N¯ Logic High
S¯¯H¯D¯N¯ Logic Low
Switching Frequency
Switch Current Limit
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
V_FB = 0.2V
V_FB = 0.4V (not switching)
V_{S¯¯H¯D¯N¯} = 0V
9 x 3 LEDs, I_OUT = 180mA
R1 = 10Ω
R1 = 3Ω
Enable Threshold Level
Shutdown Threshold Level
V_IN = 3.6V
V_IN = 5V
I_SW = 100mA
Switch Off, V_SW = 5V
“Open LED”
285
28.5
0.4
0.8
600
750
23
0.6
0.1
1.5
0.6
mA
0.1
1
µA
300 315 mV
1
µA
30
100
31.5
mA
0.8
1.5
V
0.7
V
1.0
1.3 MHz
mA
1.0
2.0
Ω
1
5
µA
150
ºC
20
ºC
1.9
V
24
V
29
V
92
16
%
Notes:
(1) TSOT23-5 package thermal resistance θ_JA = 135°C/W when mounted on board over a ground plane.
Doc. No. MD-5032 Rev. A
2
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice