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AC/DC & DC/DC controllers (external FET)

LM5170

現行

多相雙向電流控制器

立即訂購
產品規格表

LM5170

現行
產品規格表 立即訂購

產品詳細資料

Vin (min) (V) 3 Vin (max) (V) 85 Iout (max) (A) 50 Operating temperature range (°C) -40 to 125 Topology Boost, Buck Rating Catalog Vout (min) (V) 6 Vout (max) (V) 85 Iq (typ) (A) 0.001 Duty cycle (max) (%) 99
Vin (min) (V) 3 Vin (max) (V) 85 Iout (max) (A) 50 Operating temperature range (°C) -40 to 125 Topology Boost, Buck Rating Catalog Vout (min) (V) 6 Vout (max) (V) 85 Iq (typ) (A) 0.001 Duty cycle (max) (%) 99
HTQFP (PHP) 48 81 mm² 9 x 9
  • Functional Safety-Capable
  • Suited for high power industrial dual battery system
    • 100-V HV-port and 65-V LV-port max ratings
    • 1% Accurate bidirectional current regulation
    • 1% Accurate channel current monitoring
    • 5-A Peak half-bridge gate drivers
    • Support multi-phase operation with stackability
    • Diode emulation prevents negative current
  • Programmability and flexibility
    • Programmable or adaptive dead-time control
    • Programmable oscillator frequency with optional synchronization to external clock
    • Dual channel enable control inputs
    • Analog and PWM current controls
    • Programmable peak current limit
    • Programmable soft-start timer
    • Phase adding or dropping using EN2
  • Integrated protection features
    • HV and LV port over-voltage protection
    • MOSFET failure detect at start-up and circuit breaker control
    • Thermal shutdown
  • Functional Safety-Capable
  • Suited for high power industrial dual battery system
    • 100-V HV-port and 65-V LV-port max ratings
    • 1% Accurate bidirectional current regulation
    • 1% Accurate channel current monitoring
    • 5-A Peak half-bridge gate drivers
    • Support multi-phase operation with stackability
    • Diode emulation prevents negative current
  • Programmability and flexibility
    • Programmable or adaptive dead-time control
    • Programmable oscillator frequency with optional synchronization to external clock
    • Dual channel enable control inputs
    • Analog and PWM current controls
    • Programmable peak current limit
    • Programmable soft-start timer
    • Phase adding or dropping using EN2
  • Integrated protection features
    • HV and LV port over-voltage protection
    • MOSFET failure detect at start-up and circuit breaker control
    • Thermal shutdown

The LM5170 controller provides the essential high voltage and precision elements of a dual-channel bidirectional converter. It regulates the average current flowing between the high voltage and low voltage ports in the direction designated by the DIR input signal. The current regulation level is programmed through analog or digital PWM inputs.

Dual-channel differential current sense amplifiers and dedicated channel current monitors achieve typical current accuracy of 1%. Robust 5-A half-bridge gate drivers are capable of driving parallel MOSFET switches delivering 500 W or more per channel. The diode emulation mode of the synchronous rectifiers prevents negative currents but also enables discontinuous mode operation for improved efficiency with light loads. Versatile protection features include cycle-by-cycle current limiting, overvoltage protection at both HV and LV ports, MOSFET failure detection, and overtemperature protection.

The LM5170 controller provides the essential high voltage and precision elements of a dual-channel bidirectional converter. It regulates the average current flowing between the high voltage and low voltage ports in the direction designated by the DIR input signal. The current regulation level is programmed through analog or digital PWM inputs.

Dual-channel differential current sense amplifiers and dedicated channel current monitors achieve typical current accuracy of 1%. Robust 5-A half-bridge gate drivers are capable of driving parallel MOSFET switches delivering 500 W or more per channel. The diode emulation mode of the synchronous rectifiers prevents negative currents but also enables discontinuous mode operation for improved efficiency with light loads. Versatile protection features include cycle-by-cycle current limiting, overvoltage protection at both HV and LV ports, MOSFET failure detection, and overtemperature protection.
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類型 標題 日期
* Data sheet LM5170 Multiphase Bidirectional Current Controller datasheet (Rev. B) PDF | HTML 2021年 8月 11日
White paper 設計準確且多功能的鋰離子 電池測試解決方案 2020年 11月 10日
Functional safety information LM5170 and LM5170-Q1 Functional Safety, FIT Rate, and Failure Mode Distribution 2020年 5月 22日
Technical article Achieving highly accurate full-scale charge and discharge current control for high PDF | HTML 2018年 8月 13日
EVM User's guide LM5170-Q1 EVM User's Guide (Rev. A) PDF | HTML 2016年 12月 5日

設計與開發

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開發板

LM5170EVM-BIDIR — LM5170 48V-12V 雙向轉換器評估模組

The LM5170EVM-BIDIR is a high performance dual phase bi-directional converter ideal for 48V-12V dual battery system applications.  The two phases operate in 180degree interleaved operation, and they evenly share a max dc current of up to 60A.  When DIR is set to "1" the power flows from (...)
使用指南: PDF | HTML
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模擬型號

LM5170 PSpice Transient Model (Rev. A)

SNVMB14A.ZIP (154 KB) - PSpice Model
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模擬型號

LM5170 TINA-TI Reference Design

SNVMB67.TSC (592 KB) - TINA-TI Reference Design
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模擬型號

LM5710 TINA-TI Transient Spice Model

SNVMB68.ZIP (132 KB) - TINA-TI Spice Model
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計算工具

SNVC205 — LM5170-Q1 Design Calculator

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產品
AC/DC & DC/DC controllers (external FET)
LM5170 — 多相雙向電流控制器 LM5170-Q1 — 多相雙向電流控制器、符合 AEC-Q100 資格
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