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LTC3246IMSE#PBF

更新时间： 2024-11-09 20:55:43
品牌 Logo 应用领域
凌特 - Linear 光电二极管
页数 文件大小 规格书
20页 259K
描述
LTC3246 - Wide VIN Range Buck-Boost Charge Pump with Watchdog Timer; Package: MSOP; Pins: 16; Temperature Range: -40°C to 85°C

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中文翻译

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LTC3246IMSE#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：MSOP包装说明：HTSSOP, TSSOP16,.19,20
针数：16Reach Compliance Code：compliant
风险等级：8.48模拟集成电路 - 其他类型：SWITCHED CAPACITOR CONVERTER
控制模式：VOLTAGE-MODE最大输入电压：38 V
最小输入电压：2.7 V标称输入电压：12 V
JESD-30 代码：R-PDSO-G16JESD-609代码：e3
长度：4.039 mm功能数量：1
端子数量：16最高工作温度：125 °C
最低工作温度：-40 °C最大输出电流：0.5 A
最大输出电压：5 V最小输出电压：2.5 V
封装主体材料：PLASTIC/EPOXY封装代码：HTSSOP
封装等效代码：TSSOP16,.19,20封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
座面最大高度：1.1 mm表面贴装：YES
切换器配置：BUCK-BOOST技术：CMOS
温度等级：AUTOMOTIVE端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：0.5 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
宽度：3 mmBase Number Matches：1

LTC3246IMSE#PBF 数据手册

 浏览型号LTC3246IMSE#PBF的Datasheet PDF文件第2页浏览型号LTC3246IMSE#PBF的Datasheet PDF文件第3页浏览型号LTC3246IMSE#PBF的Datasheet PDF文件第4页浏览型号LTC3246IMSE#PBF的Datasheet PDF文件第5页浏览型号LTC3246IMSE#PBF的Datasheet PDF文件第6页浏览型号LTC3246IMSE#PBF的Datasheet PDF文件第7页 
LTC3246  
Wide V Range  
IN  
Buck-Boost Charge Pump  
with Watchdog Timer  
DESCRIPTION  
FEATURES  
®
The LTC 3246 is a switched capacitor buck-boost DC/DC  
n
2.7V – 38V Operating Range (42V Abs Max)  
n
I = 20µA Operating, 1.5µA in Shutdown  
Q
converter with integrated watchdog timer. The device  
produces a regulated output (3.3V, 5V or adjustable) from  
a 2.7V to 38V input. Switched capacitor fractional conver-  
sion is used to maintain regulation over a wide range of  
input voltage. Internal circuitry automatically selects the  
conversionratiotooptimizeefficiencyasinputvoltageand  
load conditions vary. No inductors are required.  
n
Multimode Buck-Boost Charge Pump (2:1, 1:1, 1:2)  
with Automatic Mode Switching  
n
12V to 5V Efficiency = 81%  
n
I
Up to 500mA  
OUT  
n
n
n
V
: Fixed 3.3V, 5V or Adjustable (2.5V to 5V)  
OUT  
Ultralow EMI Emissions  
Engineered for Diagnostic Coverage in ISO 26262  
Systems  
The LTC3246’s reset time and watchdog timeout may  
be set without external components, or adjusted using  
external capacitors. A windowed watchdog function is  
used for high reliability applications. The reset input can  
be used for additional supply monitoring or be configured  
as a pushbutton reset.  
n
Overtemperature, Overvoltage and Short-Circuit  
Protection  
n
n
n
Operating Junction Temperature: 150°C Max  
POR/Watchdog Controller w/External Timing Control  
Thermally Enhanced 16-Lead MSOP Package  
Low operating current (20µA without load, 1.5µA in shut-  
down) and low external parts count make the LTC3246  
ideally suited for low power, space constrained automo-  
tive/industrial applications. The device is short-circuit and  
overtemperature protected and is available in a thermally  
enhanced 16-lead MSOP package.  
APPLICATIONS  
n
Automotive ECU/CAN Transceiver Supplies  
n
Industrial/Telecom Housekeeping Supplies  
n
Low Power 12V to 5V Conversion  
All registered trademarks and trademarks are the property of their respective owners.  
TYPICAL APPLICATION  
Regulated 5V Output with Pushbutton Reset  
Output Voltage vs Input Voltage  
2.2µF  
5.20  
5.15  
V
OUT  
= 5V  
+
–
I
UP TO 500mA  
OUT  
5.10  
5.05  
5.00  
4.95  
4.90  
4.85  
4.80  
C
C
V
IN  
= 2.7V TO 38V  
V
V
OUT  
IN  
10µF  
SEL2  
SEL1  
BIAS  
RT  
OUTS/ADJ  
1µF  
500k  
500k  
RST  
LTC3246  
µC  
WDI  
10µF  
WT  
RSTI  
I
= 50mA  
OUT  
GND  
I
= 500mA  
OUT  
RESET  
3246 TA01a  
0
2
4
6
8
10 12 14 16  
V
(V)  
IN  
3246fa  
1
For more information www.linear.com/LTC3246  
1234567...20

中文翻译

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