參數(shù)資料
型號： CAT4238
英文描述： High Efficiency 10 LED Boost Converter
中文描述： 高效率的LED升壓轉換器10
文件頁數(shù)： 2/14頁
文件大?。?/td> 290K
代理商： CAT4238
CAT4238
Doc. No. 5019 Rev. A
2
2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
ABSOLUTE MAXIMUM RATINGS
Parameters
VIN, 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 45
-65 to +160
-40 to +125
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
Range
up to 5.5
0 to 38
-40 to +85
Units
V
V
oC
DC ELECTRICAL CHARACTERISTICS
VIN = 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
10 LEDs with I
LED
= 20mA
R1 = 10
Ω
R1 = 15
Ω
R1 = 20
Ω
Enable Threshold Level
Shutdown Threshold Level
VIN = 3V
I
SW
= 100mA
Switch Off, V
SW
= 5V
Min
Typ
0.6
0.1
0.1
300
30
20
15
Max
1.5
0.6
1
315
1
31.5
21
15.75
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
19
14.25
V
IH
V
IL
F
SW
DC
I
LIM
R
SW
I
LEAK
V
UVLO
ˉˉˉˉˉ Logic High
ˉˉˉˉˉ Logic Low
Switching Frequency
Maximum Duty Cycle
Switch Current Limit
Switch “On” Resistance
Switch Leakage Current
Thermal Shutdown
Thermal Hysteresis
Undervoltage Lockout (UVLO)
Threshold
Overvoltage Detection Threshold
Output Voltage Clamp
0.4
0.8
350
0.8
0.7
1.0
92
450
1.0
1
150
20
1.9
1.5
V
V
1.3
600
2.0
5
MHz
%
mA
Ω
μA
oC
oC
V
V
OV-SW
V
OCL
40
42
V
V
“Open LED”
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相關代理商/技術參數(shù)
參數(shù)描述
CAT4238_07 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:High Efficiency 10 LED Boost Converter
CAT4238AEVB 功能描述:BOARD EVALUATION DPP CAT4238A RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - LED 驅動器 系列:* 標準包裝:1 系列:PowerWise® 電流 - 輸出 / 通道:20mA 輸出及類型:1，非隔離 輸出電壓:17V 特點:可調光 輸入電壓:2.7 ~ 5.5 V 已供物品:板 已用 IC / 零件:LM3508 相關產品:LM3508TLX-ND - IC LED DRVR WHT BCKLGT 9USMDLM3508TLDKR-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLCT-ND - IC LED DRVR WHT BCKLGT 9MICROSMDLM3508TLTR-ND - IC LED DRVR WHT BCKLGT 9MICROSMD
CAT4238AGEVB 功能描述:BOARD EVALUATION DPP CAT4238A 制造商:on semiconductor 系列:- 零件狀態(tài):在售 電流 - 輸出/通道:40mA 輸出和類型:1，非隔離 電壓 - 輸出:- 特性:可調光 電壓 - 輸入:2.8 V ~ 5.5 V 所含物品:板 使用的 IC/零件:CAT4238 標準包裝:1
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CAT4238TD-GT3 制造商:ON Semiconductor 功能描述:IC LED DRIVER BOOST TSOT-23-5 制造商:ON Semiconductor 功能描述:IC, LED DRIVER, BOOST, TSOT-23-5
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