cat4139 Catalyst Semiconductor, cat4139 Datasheet - Page 2

• Manufacturer Part Number: cat4139
• Description: 22v High Current Boost White Led Driver
• Manufacturer: Catalyst Semiconductor

CAT4139
ABSOLUTE MAXIMUM RATINGS
RECOMMENDED OPERATING CONDITIONS
Typical application circuit with external components are shown on page 1.
DC ELECTRICAL CHARACTERISTICS
V
Notes:
(1) TSOT23-5 package thermal resistance θ
Doc. No. MD-5032 Rev. A
Parameters
VIN, FB Voltage
SHDN
SW Voltage
Storage Temperature Range
Junction Temperature Range
Lead Temperature
Parameters
VIN
SW pin voltage
Ambient Temperature Range
¯¯¯¯¯ Voltage
IN
Symbol
V
T
V
V
I
OV-DET
= 3.6V, ambient temperature of 25ºC (over recommended operating conditions unless specified otherwise).
R
F
V
I
T
DC
I
LEAK
V
I
I
V
HYST
UVLO
LED
I
LIM
SD
OCL
FB
SW
Q
SW
SD
FB
IH
IL
Operating Current
¯¯¯¯¯ Logic High
SHDN
SHDN
¯¯¯¯¯ Logic Low
Under-voltage lock out (UVLO)
Threshold
Parameter
Shutdown Current
FB Pin Voltage
FB pin input leakage
Programmed LED Current
Switching Frequency
Switch Current Limit
Switch “On” Resistance
Switch Leakage Current
Thermal Shutdown
Thermal Hysteresis
Over-voltage detection threshold
Output Clamp voltage
Maximum duty cycle
Minimum duty cycle
(1)
JA
= 135°C/W when mounted on board over a ground plane.
-65 to +160
-40 to +150
-40 to +85
-0.3 to +7
-0.3 to +7
up to 5.5
-0.3 to 40
Ratings
0 to 22
Range
300
V
V
V
9 x 3 LEDs, I
R1 = 10Ω
R1 = 3Ω
Enable Threshold Level
Shutdown Threshold Level
V
V
I
Switch Off, V
“Open LED”
SW
FB
FB
SHDN
IN
IN
¯¯¯¯¯
= 100mA
= 3.6V
= 5V
= 0.2V
= 0.4V (not switching)
Test Conditions
Units
Units
= 0V
ºC
ºC
ºC
ºC
V
V
V
V
V
2
OUT
SW
= 5V
= 180mA
28.5
Min
285
600
750
0.4
0.8
23
Characteristics subject to change without notice
Typ
300
100
150
1.0
0.6
0.1
0.1
0.8
0.7
1.0
1.9
30
20
24
29
92
16
1
© Catalyst Semiconductor, Inc.
31.5
Max
315
1.5
0.6
1.5
1.3
2.0
1
1
5
Units
MHz
mA
mV
mA
mA
µA
µA
µA
ºC
ºC
%
V
V
Ω
V
V
V