5秒后页面跳转
LTC3871HLXE#PBF PDF预览

LTC3871HLXE#PBF

更新时间: 2024-02-29 03:29:42
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
34页 1184K
描述
LTC3871 - Bidirectional PolyPhase® Synchronous Buck or Boost Controller; Package: LQFP; Pins: 48; Temperature Range: -40°C to 125°C

LTC3871HLXE#PBF 技术参数

是否Rohs认证: 符合生命周期:Active
零件包装代码:QFP包装说明:LQFP-48
针数:48Reach Compliance Code:compliant
风险等级:2.29Base Number Matches:1

LTC3871HLXE#PBF 数据手册

 浏览型号LTC3871HLXE#PBF的Datasheet PDF文件第2页浏览型号LTC3871HLXE#PBF的Datasheet PDF文件第3页浏览型号LTC3871HLXE#PBF的Datasheet PDF文件第4页浏览型号LTC3871HLXE#PBF的Datasheet PDF文件第5页浏览型号LTC3871HLXE#PBF的Datasheet PDF文件第6页浏览型号LTC3871HLXE#PBF的Datasheet PDF文件第7页 
LTC3871  
®
Bidirectional PolyPhase  
Synchronous Buck or Boost Controller  
FEATURES  
DESCRIPTION  
The LTC®3871 is a high performance bidirectional buck or  
boost switching regulator controller that operates in either  
buck or boost mode on demand. It regulates in buck mode  
n
Unique Architecture Allows Dynamic Regulation of  
Input Voltage, Output Voltage or Current  
n
n
n
n
n
n
V
V
Voltages Up to 100V  
Voltages Up to 30V  
HIGH  
LOW  
from V  
-to-V  
and boost mode from V  
-to-V  
HIGH  
LOW  
LOW HIGH  
Synchronous Rectification: Up to 97% Efficiency  
LTC-Proprietary Advanced Current Mode Control  
1% Voltage Regulation Accuracy Over Temperature  
Accurate, Programmable Output Current Monitoring  
and Regulation for Both Buck and Boost Operation  
Selectable Buck and Boost Current Sense Limits  
depending on a control signal, making it ideal for 48V/12V  
automotive dual battery systems. An accurate current  
programming loop regulates the maximum current that  
can be delivered in either direction. The LTC3871 allows  
both batteries to supply energy to the load simultaneously  
by converting energy from one battery to the other.  
n
n
n
n
n
n
n
n
Programmable DRV /EXTV Optimizes Efficiency  
CC  
CC  
Its proprietary constant-frequency current mode  
architecture enhances the signal-to-noise ratio enabling  
low noise operation and provides excellent current  
matching between phases. Additional features include  
discontinuous or continuous mode of operation, OV/UV  
monitors, independent loop compensation for buck and  
boost operation, accurate output current monitoring and  
overcurrent protection.  
Programmable V  
Programmable V  
UV and OV Thresholds  
OV Threshold  
HIGH  
LOW  
Phase-Lockable Frequency: 60kHz to 460kHz  
Multiphase/Multi-ICs Operation Up to 12 Phases  
Selectable CCM/DCM Modes  
Thermally Enhanced 48-Lead LQFP Package  
APPLICATIONS  
L, LT, LTC, LTM, Linear Technology, the Linear logo, μModule, PolyPhase and OPTI-LOOP are  
registered trademarks of Linear Technology Corporation. All other trademarks are the property  
of their respective owners. Protected by U.S. Patents, including 5481178, 5705919, 5929620,  
6177787, 6580258, 6100678, 6144154, 6304066.  
n
Automotive 48V/12V Dual Battery Systems  
Backup Power Systems  
n
TYPICAL APPLICATION  
High Efficiency Bidirectional Charger/Power Supply  
V
HIGH  
26V TO 58V  
Buck-to-Boost Transition  
OV  
HIGH  
EXTV  
CC  
UV  
HIGH  
VFB  
LOW  
BUCK  
BOOST  
BUCK  
SNS1  
ITH  
HIGH  
+
V
SNSD1  
LOW  
+
5V/DIV  
SNSA1  
DRV  
BST1  
I
CC  
ITH  
L
LOW  
5A/DIV  
TG1  
SW1  
BG1  
SS  
V
HIGH  
V
12V  
BATTERY  
LOW  
LTC3871  
10V/DIV  
BUCK BOOST  
BUCK  
SW  
50V/DIV  
VFB  
HIGH  
IMON  
SNS2  
3871 TA01b  
FREQ  
+
50μ/DIV  
SNSD2  
SNSA2  
V
LOW  
+
DRV  
BST2  
CC  
OV  
LOW  
TG2  
DRV  
CC  
SW2  
V5  
BG2  
3871 TA01a  
PINS NOT SHOWN IN THIS CIRCUIT:  
CLKOUT, DRVSET, FAULT, ILIM, MODE,  
PHSMD, RUN, SETCUR AND SYNC.  
3871f  
1
For more information www.linear.com/LTC3871  

与LTC3871HLXE#PBF相关器件

型号 品牌 获取价格 描述 数据表
LTC3872 Linear

获取价格

No RSENSE Current Mode Boost DC/DC Controller
LTC3872 ADI

获取价格

No RSENSE 电流模式升压型 DC/DC 控制器
LTC3872-1 Linear

获取价格

No RSENSE Current Mode Boost DC/DC Controller
LTC3872-1 ADI

获取价格

No RSENSE 电流模式升压型 DC/DC 控制器
LTC3872-1_15 Linear

获取价格

No RSENSE Current Mode Boost DC/DC Controller
LTC3872EDDB Linear

获取价格

No RSENSE Current Mode Boost DC/DC Controller
LTC3872EDDB#PBF Linear

获取价格

LTC3872 - No RSENSE Current Mode Boost DC/DC Controller; Package: DFN; Pins: 8; Temperatur
LTC3872EDDB#TR Linear

获取价格

IC SWITCHING CONTROLLER, 650 kHz SWITCHING FREQ-MAX, PDSO8, 3 X 2 MM, PLASTIC, MO-229WECD-
LTC3872EDDB#TRM Linear

获取价格

暂无描述
LTC3872EDDB#TRMPBF Linear

获取价格

LTC3872 - No RSENSE Current Mode Boost DC/DC Controller; Package: DFN; Pins: 8; Temperatur