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参数资料
| 型号： | LTC3230EUD#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVR WHITE BCKLGT 20-QFN |
| 标准包装： | 121 |
| 拓扑： | 升压（升压），切换式电容器（充电泵） |
| 输出数： | 5 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 900kHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-WFQFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN 裸露焊盘（3x3） |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 1340 (CN2011-ZH PDF) |
LTC3230
ELECTRICAL CHARACTERISTICS The ● denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V IN = 3.6V, C1 = C2 = C4 = C5 = C6 = 1μF, R SET = 17.4k, ENM = ENS =
high, ENLDO1 = ENLDO2 = low, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
CPO Short Circuit Detection
Threshold Voltage
●
0.4
1.3
V
Charge Pump (CPO)
1x Mode Output Voltage
1.5x Mode Output Voltage
2x Mode Output Voltage
1x Mode Output Impedance
1.5x Mode Output Impedance
2x Mode Output Impedance
Clock Frequency
Mode Switching Delay
I CPO = 0mA
I CPO = 0mA
I CPO = 0mA
V IN = 3.4V, V CPO = 4.6V (Note 6)
V IN = 3.4V, V CPO = 5.1V (Note 6)
V IN
4.5
5.0
1.6
7.9
9.2
0.9
0.5
V
V
V
Ω
Ω
Ω
MHz
ms
t EN
Current Source Enable Time (ENM, ENS = High)
●
250
μs
(Note 7)
LDO1, LDO2
Bias per 1 LDO
Additional DC Bias per LDO
ENM = ENS = Low
125
60
μA
μA
Output Voltage Accuracy
I OUT = 100μA
●
–3
3
%
Current Limit
Line Regulation
Load Regulation
Dropout Voltage
V LDO = 1.8V, I OUT = 50mA
V IN = 3.6V, 100μA < I LDO < 200mA
LDO2, V LDO = 3.3V, V IN – V LDO at V LDO 3% Down
●
280
475
0.1
0.65
250
750
mA
%/V
%
mV
from V LDO Measureed at V IN = 4.3V
V1, V2
V IL
V IH
●
●
V IN – 0.2
0.2
V
V
Shutdown Input Current
Active Input Current
ENLDO1 = ENLDO2 = Low
ENLDO1 = ENLDO2 = High
–1
–3
1
3
μA
μA
ENM, ENS, ENLDO1, ENLDO2
V IL
V IH
I IH
V IH = 3.6V
●
●
1.4
3
0.4
V
V
μA
I IL
V IL = 0V
●
–1
1
μA
ENM, ENS Timing
t PWH
High Pulse Width
●
0.2
μs
t PWL
Low Pulse Width
0.2
20
μs
t SD
Low Time to Shutdown (ENM, ENS = Low)
●
250
μs
R SET
V RSET
I RSET
●
●
768
800
832
70
mV
μA
3230fa
3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3230EUD-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:5-LED Main/Sub Display Driver with Dual LDO |
| LTC3240 | 制造商:LINER 制造商全称:Linear Technology 功能描述:3.3V/2.5V Step-Up/ Step-Down Charge Pump DC/DC Converter |
| LTC3240-2.5 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Wide VIN Range, Low Noise, 250mA Buck-Boost Charge Pump |
| LTC3240-3.3 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Wide VIN Range, Low Noise, 250mA Buck-Boost Charge Pump |
| LTC3240EDC-2.5 | 制造商:LINER 制造商全称:Linear Technology 功能描述:3.3V/2.5V Step-Up/ Step-Down Charge Pump DC/DC Converter |
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