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理想二極體/ORing 控制器

LM5051

現行

-6-V 至 -100-V 690-uA IQ ORing FET 控制器

立即訂購
產品規格表

LM5051

現行
產品規格表 立即訂購

產品詳細資料

Vin (min) (V) -6 Vin (max) (V) 100 Number of channels 1 Features FET test, Linear control, Power good signal, Reverse current blocking Iq (typ) (mA) 0.69 Iq (max) (mA) 0.78 FET External single FET IGate source (typ) (µA) 660 IGate source (max) (µA) 950 IGate sink (typ) (mA) 3.5 IGate pulsed (typ) (A) 3.5 Operating temperature range (°C) -40 to 125 VSense reverse (typ) (mV) -45 Design support EVM, Simulation Model Rating Catalog Imax (A) 250 Shutdown current (ISD) (mA) (A) 0.1 Device type ORing controller Product type ORing controller
Vin (min) (V) -6 Vin (max) (V) 100 Number of channels 1 Features FET test, Linear control, Power good signal, Reverse current blocking Iq (typ) (mA) 0.69 Iq (max) (mA) 0.78 FET External single FET IGate source (typ) (µA) 660 IGate source (max) (µA) 950 IGate sink (typ) (mA) 3.5 IGate pulsed (typ) (A) 3.5 Operating temperature range (°C) -40 to 125 VSense reverse (typ) (mV) -45 Design support EVM, Simulation Model Rating Catalog Imax (A) 250 Shutdown current (ISD) (mA) (A) 0.1 Device type ORing controller Product type ORing controller
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Wide operating input voltage range: -6V to -100V
  • -100V Transient Capability
  • Gate drive for external N-Channel MOSFET
  • MOSFET diagnostic test mode
  • Fast 50ns response to current reversal
  • 2A peak gate turn-off current
  • Package: 8-Lead SOIC

All trademarks are the property of their respective owners.

  • Wide operating input voltage range: -6V to -100V
  • -100V Transient Capability
  • Gate drive for external N-Channel MOSFET
  • MOSFET diagnostic test mode
  • Fast 50ns response to current reversal
  • 2A peak gate turn-off current
  • Package: 8-Lead SOIC

All trademarks are the property of their respective owners.

The LM5051 Low Side OR-ing FET Controller operates in conjunction with an external MOSFET as an ideal diode rectifier when connected in series with a power source. This OR-ing controller allows MOSFETs to replace diode rectifiers in power distribution networks thus reducing both power loss and voltage drops.

The LM5051 controller provides gate drive for an external N-Channel MOSFET and a fast response comparator to turn off the FET when current flows in the reverse direction. The LM5051 can connect power supplies ranging from -6V to -100V and can withstand transients up to -100V.

The LM5051 also provides a FET test diagnostic mode which allows the system controller to test for shorted MOSFETs.

The LM5051 Low Side OR-ing FET Controller operates in conjunction with an external MOSFET as an ideal diode rectifier when connected in series with a power source. This OR-ing controller allows MOSFETs to replace diode rectifiers in power distribution networks thus reducing both power loss and voltage drops.

The LM5051 controller provides gate drive for an external N-Channel MOSFET and a fast response comparator to turn off the FET when current flows in the reverse direction. The LM5051 can connect power supplies ranging from -6V to -100V and can withstand transients up to -100V.

The LM5051 also provides a FET test diagnostic mode which allows the system controller to test for shorted MOSFETs.
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類型 標題 日期
* Data sheet LM5051 Low Side OR-ing FET Controller datasheet (Rev. D) 2013年 3月 21日
Application note Basics of Ideal Diodes (Rev. B) PDF | HTML 2021年 10月 5日
E-book 11 Ways to Protect Your Power Path 2019年 7月 3日
Application note Basics of Power Switches (Rev. A) PDF | HTML 2019年 4月 26日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
User guide AN-2148 LM5051MAEVAL Evaluation Board (Rev. B) 2013年 5月 6日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

LM5051MAEVAL — 適用於 LM5051 的評估板

The LM5051 evaluation board is designed to demonstrate the capabilities of the LM5051 OR-ing Diode Controller. One lowside N-channel power MOSFET is used per channel. The evaluation board is designed to highlight applications with a small solution size.

使用指南: PDF
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模擬型號

LM5051 TINA-TI Transient Reference Design (Rev. A)

SNVM465A.TSC (361 KB) - TINA-TI Reference Design
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模擬型號

LM5051 TINA-TI Transient Spice Model (Rev. A)

SNVM466A.ZIP (23 KB) - TINA-TI Spice Model
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模擬型號

LM5051 Unencrypted PSpice Transient Model Package (Rev. B)

SNVM467B.ZIP (51 KB) - PSpice Model
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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