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電源保護開關與控制器
理想二極體與 ORing 控制器

LM5050-1-Q1

現行

車用 5-V 至 75-V 400-uA IQ ORing FET 控制器

立即訂購
產品規格表

LM5050-1-Q1

現行
產品規格表 立即訂購

產品詳細資料

Vin (max) (V) 75 Vin (min) (V) 5 FET External single FET Device type ORing controller Number of channels 1 Rating Automotive Features AUX input, Linear control, Reverse current blocking, Reverse polarity protection Imax (A) 250 Iq (typ) (mA) 0.4 Iq (max) (mA) 0.79 TI functional safety category Functional Safety-Capable IGate source (typ) (µA) 31 IGate source (max) (µA) 41 IGate sink (typ) (mA) 2.8 IGate pulsed (typ) (A) 2.8 Operating temperature range (°C) -40 to 150 VSense reverse (typ) (mV) -41, -28 Design support EVM, Simulation Model VGS (max) (V) 14 Shutdown current (ISD) (mA) (A) 0.1 Product type ORing controller
Vin (max) (V) 75 Vin (min) (V) 5 FET External single FET Device type ORing controller Number of channels 1 Rating Automotive Features AUX input, Linear control, Reverse current blocking, Reverse polarity protection Imax (A) 250 Iq (typ) (mA) 0.4 Iq (max) (mA) 0.79 TI functional safety category Functional Safety-Capable IGate source (typ) (µA) 31 IGate source (max) (µA) 41 IGate sink (typ) (mA) 2.8 IGate pulsed (typ) (A) 2.8 Operating temperature range (°C) -40 to 150 VSense reverse (typ) (mV) -41, -28 Design support EVM, Simulation Model VGS (max) (V) 14 Shutdown current (ISD) (mA) (A) 0.1 Product type ORing controller
SOT-23-THN (DDC) 6 8.12 mm² (2.9 mm × 2.8 mm)
  • Available in Standard and AEC-Q100 Qualified Versions LM5050Q0MK-1 (up to 150°C TJ) and LM5050Q1MK-1 (up to 125°C TJ)
  • Functional safety capable
    • Documentation available to aid functional safety system design
  • Wide Operating Input Voltage Range, VIN: 1 V to 75 V (VBIAS required for VIN < 5 V)
  • 100-V Transient Capability
  • Charge Pump Gate Driver for External N-Channel MOSFET
  • Fast 50-ns Response to Current Reversal
  • 2-A Peak Gate Turnoff Current
  • Minimum VDS Clamp for Faster Turnoff
  • Package: SOT-6 (Thin SOT-23-6)
  • Available in Standard and AEC-Q100 Qualified Versions LM5050Q0MK-1 (up to 150°C TJ) and LM5050Q1MK-1 (up to 125°C TJ)
  • Functional safety capable
    • Documentation available to aid functional safety system design
  • Wide Operating Input Voltage Range, VIN: 1 V to 75 V (VBIAS required for VIN < 5 V)
  • 100-V Transient Capability
  • Charge Pump Gate Driver for External N-Channel MOSFET
  • Fast 50-ns Response to Current Reversal
  • 2-A Peak Gate Turnoff Current
  • Minimum VDS Clamp for Faster Turnoff
  • Package: SOT-6 (Thin SOT-23-6)

The LM5050-1/-Q1 High 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 ORing controller allows MOSFETs to replace diode rectifiers in power distribution networks thus reducing both power loss and voltage drops.

The LM5050-1/-Q1 controller provides charge pump 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 LM5050-1/-Q1 can connect power supplies ranging from 5 V to 75 V and can withstand transients up to 100 V.

The LM5050-1/-Q1 High 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 ORing controller allows MOSFETs to replace diode rectifiers in power distribution networks thus reducing both power loss and voltage drops.

The LM5050-1/-Q1 controller provides charge pump 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 LM5050-1/-Q1 can connect power supplies ranging from 5 V to 75 V and can withstand transients up to 100 V.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 LM5050-1, LM5050-1-Q1 High-Side OR-ing FET Controller datasheet (Rev. F) PDF | HTML 2019/12/23
功能安全資訊 LM5050-1-Q1 Functional Safety FIT Rate and Failure Mode Distribution 2019/12/3
電子書 11 Ways to Protect Your Power Path 2019/7/3

設計與開發

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開發板

LM5050MK-1EVAL — 適用於 LM5050-1 的評估板

The LM5050-1 evaluation board is designed to demonstrate the capabilities of the LM5050-1 OR-ing Diode Controller. One high side N-channel power MOSFET is used. 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

LM5050 Unencrypted PSPICE Transient Model

SNVM010.ZIP (347 KB) - PSpice 模型
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參考設計

TIDA-00992 — 車用反向極性保護參考設計

反向極性是汽車環境中所需的標準保護。斷開並重新連接電池纜線時，可能會將纜線連接至錯誤的電池終端。該錯誤可能損壞電子控制單元 (ECU) 中的元件。為避免損壞 ECU，反向極性保護不可或缺。可使用肖特基二極體，但會產生持續的高功率損耗。  此參考設計使用 LM5050-Q1 和 N 通道 MOSFET，以提供反向極性保護並降低功耗。
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SOT-23-THN (DDC) 6 Ultra Librarian
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