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Linear Technology/Analog Devices LTC3871 Bidirectional PolyPhase® Synchronous Controllers are high-performance 100V/30V bidirectional two-phase controllers capable of operating in either buck or boost mode on demand. Depending on the control signal, LTC3871 regulates in buck mode from VHIGH-to-VLOW and boost mode from VLOW-to-VHIGH. These regulation capabilities make the LTC3871 controllers ideal for automotive dual battery systems.
The controllers regulate the maximum current delivered in either direction through an accurate current programming loop. The current programming loop allows the two batteries to supply energy to the load simultaneously by converting energy from one battery to the other.
Using a proprietary constant-frequency, current-mode architecture, the LTC3871 enhances the signal-to-noise ratio. This enhanced signal-to-noise ratio enables low-noise operation and delivers excellent current matching between phases.
Additional features of the LTC3871 include continuous or discontinuous operation, OV/UV monitors, accurate output current monitoring, independent loop compensation for buck and boost operation, and overcurrent protection.
Features
Unique Architecture Allows Dynamic Regulation of Input Voltage, Output Voltage or Current
VHIGH Voltages Up to 100V
VLOW Voltages Up to 30V
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
Programmable DRVCC/EXTVCC Optimizes Efficiency
Programmable VHIGH UV and OV Thresholds
Programmable VLOW OV Threshold
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
Automotive 48V/12V Dual Battery Systems
Backup Power Systems
LTC3871HLXE#PBF
LTC3871ELXE#PBF
LTC3871ILXE#PBF
LTC3871HLXE#PBF制造商: Analog Devices Inc.
產(chǎn)品種類: 開關(guān)穩(wěn)壓器
安裝風(fēng)格: SMD/SMT
封裝 / 箱體: LQFP-48
輸出電壓: 1.2 V to 100 V
輸出電流: 30 A
輸出端數(shù)量: 1 Output
最大輸入電壓: 100 V
拓撲結(jié)構(gòu): Buck, Boost
最小輸入電壓: 1.2 V
開關(guān)頻率: 500 kHz
最小工作溫度: - 40 C
最大工作溫度: + 150 C
資格: AEC-Q100
系列: LTC3871
輸入電壓: 1.2 V to 100 V
工作溫度范圍: - 40 C to + 150 C
靜態(tài)電流: 8 mA
類型: Switching Regulator
商標: Analog Devices / Linear Technology
關(guān)閉: Shutdown
開發(fā)套件: DC2348A-A,DC2348A-B
負載調(diào)節(jié): 0.01 %
濕度敏感性: Yes
工作電源電流: 8 mA
工廠包裝數(shù)量: 250
單位重量: 2.698 g
