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LTC3226EUD#TRPBF PDF预览

LTC3226EUD#TRPBF

更新时间： 2024-09-25 19:43:47
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
16页 240K
描述
LTC3226 - 2-Cell Supercapacitor Charger with Backup PowerPath Controller; Package: QFN; Pins: 16; Temperature Range: -40°C to 85°C

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中文翻译

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LTC3226EUD#TRPBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：QFN包装说明：HVQCCN, LCC16,.12SQ,20
针数：16Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：7.91模拟集成电路 - 其他类型：SWITCHED CAPACITOR REGULATOR
最大输入电压：5.5 V最小输入电压：2.5 V
标称输入电压：3 VJESD-30 代码：S-PQCC-N16
JESD-609代码：e3长度：3 mm
湿度敏感等级：1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标称输出电压：3.3 V
封装主体材料：PLASTIC/EPOXY封装代码：HVQCCN
封装等效代码：LCC16,.12SQ,20封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：NOT SPECIFIED
电源：3.3 V认证状态：Not Qualified
座面最大高度：0.8 mm子类别：Power Management Circuits
标称供电电压 (Vsup)：3.3 V表面贴装：YES
最大切换频率：1050 kHz技术：CMOS
温度等级：AUTOMOTIVE端子面层：Matte Tin (Sn)
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3 mmBase Number Matches：1

LTC3226EUD#TRPBF 数据手册

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LTC3226  
2-Cell Supercapacitor  
Charger with Backup  
PowerPath Controller  
FEATURES  
DESCRIPTION  
TheLTC®3226isa2-cellseriessupercapacitorchargerwith  
a backup PowerPath controller. It includes a charge pump  
supercapacitorchargerwithprogrammableoutputvoltage,  
a low dropout regulator, and a power-fail comparator for  
switching between normal and backup modes.  
n
1x/2x Multimode Charge Pump Supercapacitor  
Charger  
n
Automatic Cell Balancing  
n
Ideal Diode Main PowerPath™ Controller  
(V to V  
)
IN  
OUT  
n
n
n
n
n
n
n
Internal 2A LDO Backup Supply (CPO to V  
Automatic Main/Backup Switchover  
Input Voltage Range: 2.5V to 5.5V  
Programmable SCAP Charge Voltage  
)
OUT  
The constant input current supercapacitor charger is  
designed to charge two supercapacitors in series to a  
resistor-programmable output voltage of 2.5V to 5.3V.  
The charger input current limit is programmable by an  
external resistor at up to 315mA.  
Programmable Input Current Limit (315mA Max)  
No Load I = 55μA (Typical)  
VIN  
The internal backup LDO is powered from the superca-  
pacitors and provides up to 2A peak output current with  
an adjustable output voltage. When the input supply falls  
belowthepower-failthreshold, theLTC3226automatically  
enters a backup state in which the supercapacitors power  
the output through the LDO. The input supply power-fail  
voltagelevelisprogrammedbyanexternalresistordivider.  
Low Profile, 16-Lead 3mm × 3mm QFN Package  
APPLICATIONS  
n
Smart Power Meters  
n
Battery-Powered Industrial/Medical Equipment  
n
3.3V Solid-State Drives  
n
Industrial Alarms  
n
Data Backup Supplies  
Low input noise, low quiescent current and a compact  
footprintmaketheLTC3226ideallysuitedforsmall,battery-  
powered applications. Internal current limit and thermal  
shutdown circuitry allow the device to survive a continu-  
ous short-circuit from the PROG or CPO pins to ground.  
n
Battery Hold-Up Supplies  
L, LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks  
and PowerPath is a trademark of Linear Technology Corporation. All other trademarks are the  
property of their respective owners.  
TYPICAL APPLICATION  
3.3V Backup Supply  
MPEXT  
TO LOAD  
(2A)  
Automatic Normal-to-Backup  
Mode Switchover  
LTC3226  
LDO  
V
IN  
3.3V  
GATE  
V
6
IN  
C
C
= 1.2F  
SC  
V
2.2ꢀF  
OUT  
CPO  
= 47ꢀF  
= 2A  
OUT  
LOAD  
5
4
I
C
OUT  
47ꢀF  
255k  
1.96M  
LDO_FB  
RST_FB  
CPO  
V
OUT  
80.6k  
3
1.2V  
PFI  
+
–
5V  
V
IN  
2
+
V
IN  
BACKUP  
MODE  
1.21M  
33.2k  
C
VMID  
C
SC  
1.2F  
BACKUP MODE  
(LDO IN  
1
–
2.2ꢀF  
(LDO IN  
C
DROPOUT)  
CHARGE  
PUMP  
REGULATION)  
PROG  
0
3.83M  
PFO (2V/DIV)  
CPO_FB  
EN_CHG  
–1  
0
0.4  
0.8  
1.2  
1.6  
2.0  
PFO  
RST  
1.21M  
TIME (SECONDS)  
CAPGOOD  
3226 TA01b  
GND  
3226 TA01a  
3226fa  
1
1234567...16

中文翻译

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LTC3226EUD#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC3226EUD#PBF Linear

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