參數(shù)資料
型號: CAT4240TD-GT3
元件分類: LED驅(qū)動器
英文描述: 6 Watt Boost LED Driver
中文描述: 6瓦升壓LED驅(qū)動器
文件頁數(shù): 2/14頁
文件大小: 319K
代理商: CAT4240TD-GT3
CAT4240
Doc. No. MD-5026 Rev. B
2
Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
ABSOLUTE MAXIMUM RATINGS
Parameters
V
IN
, FB voltage
ˉˉˉˉˉ voltage
SW voltage
Storage Temperature Range
Junction Temperature Range
Lead Temperature
Ratings
-0.3 to +7
-0.3 to +7
-0.3 to 60
-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
V
IN
SW pin voltage
Ambient Temperature Range
(1)
Range
up to 5.5
0 to 38
-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
I
Q
Operating Current
Test Conditions
V
FB
= 0.2V
V
FB
= 0.4V (not switching)
V
6 LEDs with I
LED
= 75mA
R1 = 10
R1 = 5
Enable Threshold Level
Shutdown Threshold Level
V
IN
= 3V
V
IN
= 3.6V
V
IN
= 5V
I
SW
= 100mA
Switch Off, V
SW
= 30V
Min
Typ
0.6
0.1
0.1
300
30
60
0.8
0.7
1.0
92
Max
1.5
0.6
1
315
1
31.5
Units
mA
I
SD
V
FB
I
FB
I
LED
Shutdown Current
FB Pin Voltage
FB pin input leakage
Programmed LED Current
SHDN
= 0V
μA
mV
μA
mA
285
28.5
V
IH
V
IL
F
SW
DC
ˉˉˉˉˉ Logic High
ˉˉˉˉˉ Logic Low
Switching Frequency
Maximum Duty Cycle
0.4
0.8
600
750
1.5
V
V
1.3
MHz
%
I
LIM
Switch Current Limit
mA
R
SW
I
LEAK
Switch “On” Resistance
Switch Leakage Current
Thermal Shutdown
Thermal Hysteresis
Undervoltage Lockout (UVLO)
Threshold
Overvoltage Detection Threshold
Output Voltage Clamp
1.0
2
150
20
2.0
5
μA
oC
oC
V
UVLO
1.9
V
V
OV-SW
V
OCL
40
42
V
V
“Open LED”
Note:
(1) Thin SOT23-5 package thermal resistance
θ
JA
= 135
°
C/W when mounted on board over a ground plane.
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