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低壓側驅動器

LM5112

現行

具 4-V UVLO 和輸入接地的 3-A/7-A 單通道閘極驅動器，適用分離電源操作

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產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的裝置不同
UCC27614 現行 具有 4-V UVLO、30-V VDD 與低傳播延遲的 10-A/10-A 單通道閘極驅動器 Wide VDD and smaller package

LM5112

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Power switch MOSFET Peak output current (A) 7 Input supply voltage (min) (V) 3.5 Input supply voltage (max) (V) 14 Features Negative Output Voltage Capability Operating temperature range (°C) -40 to 125 Rise time (ns) 14 Fall time (ns) 12 Propagation delay time (µs) 0.025 Input threshold TTL Channel input logic Inverting, Non-Inverting Input negative voltage (V) 0 Rating Catalog Undervoltage lockout (typ) (V) 3 Driver configuration Single
Number of channels 1 Power switch MOSFET Peak output current (A) 7 Input supply voltage (min) (V) 3.5 Input supply voltage (max) (V) 14 Features Negative Output Voltage Capability Operating temperature range (°C) -40 to 125 Rise time (ns) 14 Fall time (ns) 12 Propagation delay time (µs) 0.025 Input threshold TTL Channel input logic Inverting, Non-Inverting Input negative voltage (V) 0 Rating Catalog Undervoltage lockout (typ) (V) 3 Driver configuration Single
HVSSOP (DGN) 8 14.7 mm² 3 x 4.9 WSON (NGG) 6 9 mm² 3 x 3
  • LM5112-Q1 is Qualified for Automotive Applications
  • AEC-Q100 Grade 1 Qualified
  • Manufactured on an Automotive Grade Flow
  • Compound CMOS and Bipolar Outputs Reduce Output Current Variation
  • 7-A Sink and 3-A Source Current
  • Fast Propagation Times: 25 ns (Typical)
  • Fast Rise and Fall Times: 14 ns or 12 ns
    Rise or Fall With 2-nF Load
  • Inverting and Non-Inverting Inputs Provide Either Configuration With a Single Device
  • Supply Rail Undervoltage Lockout Protection
  • Dedicated Input Ground (IN_REF) for
    Split Supply or Single Supply Operation
  • Power Enhanced 6-Pin WSON Package
    (3 mm × 3 mm) or Thermally Enhanced
    MSOP-PowerPAD Package
  • Output Swings From VCC to VEE Which Are Negative Relative to Input Ground
  • LM5112-Q1 is Qualified for Automotive Applications
  • AEC-Q100 Grade 1 Qualified
  • Manufactured on an Automotive Grade Flow
  • Compound CMOS and Bipolar Outputs Reduce Output Current Variation
  • 7-A Sink and 3-A Source Current
  • Fast Propagation Times: 25 ns (Typical)
  • Fast Rise and Fall Times: 14 ns or 12 ns
    Rise or Fall With 2-nF Load
  • Inverting and Non-Inverting Inputs Provide Either Configuration With a Single Device
  • Supply Rail Undervoltage Lockout Protection
  • Dedicated Input Ground (IN_REF) for
    Split Supply or Single Supply Operation
  • Power Enhanced 6-Pin WSON Package
    (3 mm × 3 mm) or Thermally Enhanced
    MSOP-PowerPAD Package
  • Output Swings From VCC to VEE Which Are Negative Relative to Input Ground

The LM5112 device MOSFET gate driver provides high peak gate drive current in the tiny 6-pin WSON package (SOT-23 equivalent footprint) or an 8-pin exposed-pad MSOP package with improved power dissipation required for high frequency operation. The compound output driver stage includes MOS and bipolar transistors operating in parallel that together sink more than 7 A peak from capacitive loads. Combining the unique characteristics of MOS and bipolar devices reduces drive current variation with voltage and temperature. Undervoltage lockout protection is provided to prevent damage to the MOSFET due to insufficient gate turnon voltage. The LM5112 device provides both inverting and non-inverting inputs to satisfy requirements for inverting and non-inverting gate drive with a single device type.

The LM5112 device MOSFET gate driver provides high peak gate drive current in the tiny 6-pin WSON package (SOT-23 equivalent footprint) or an 8-pin exposed-pad MSOP package with improved power dissipation required for high frequency operation. The compound output driver stage includes MOS and bipolar transistors operating in parallel that together sink more than 7 A peak from capacitive loads. Combining the unique characteristics of MOS and bipolar devices reduces drive current variation with voltage and temperature. Undervoltage lockout protection is provided to prevent damage to the MOSFET due to insufficient gate turnon voltage. The LM5112 device provides both inverting and non-inverting inputs to satisfy requirements for inverting and non-inverting gate drive with a single device type.
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類型 標題 日期
* Data sheet LM5112, LM5112-Q1 Tiny 7-A MOSFET Gate Driver datasheet (Rev. C) PDF | HTML 2015年 10月 22日
Application note Review of Different Power Factor Correction (PFC) Topologies' Gate Driver Needs PDF | HTML 2024年 1月 22日
Application note Using a Single-Output Gate-Driver for High-Side or Low-Side Drive (Rev. B) PDF | HTML 2023年 9月 8日
Application note Benefits of a Compact, Powerful, and Robust Low-Side Gate Driver PDF | HTML 2021年 11月 10日
Application brief External Gate Resistor Selection Guide (Rev. A) 2020年 2月 28日
Application brief Understanding Peak IOH and IOL Currents (Rev. A) 2020年 2月 28日
Application brief How to overcome negative voltage transients on low-side gate drivers' inputs 2019年 1月 18日
More literature Fundamentals of MOSFET and IGBT Gate Driver Circuits (Replaces SLUP169) (Rev. A) 2018年 10月 29日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Application brief Low-Side Gate Drivers With UVLO Versus BJT Totem-Pole 2018年 3月 16日
Application note An Alternative Approach to Higher-Power Boost Converters 2009年 11月 30日

設計與開發

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開發板

UCC27423-4-5-Q1EVM — 具有啟用功能的 UCC2742xQ1 雙路 4A 高速低壓側 MOSFET 驅動器評估模組

The UCC2742xQ1 EVM is a high-speed dual MOSFET evaluation module that provides a test platform for a quick and easy startup of the UCC2742xQ1 driver. Powered by a single 4V to 15V external supply, and featuring a comprehensive set of test points and jumpers. All of the devices have separate input (...)
使用指南: PDF
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模擬型號

LM5112 PSpice Transient Model

SNVM300.ZIP (73 KB) - PSpice Model
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模擬型號

LM5112 TINA-TI Transient Reference Design

SNVM391.TSC (579 KB) - TINA-TI Reference Design
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模擬型號

LM5112 TINA-TI Transient Spice Model

SNVM390.ZIP (8 KB) - TINA-TI Spice Model
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模擬型號

LM5112 Unencrypted PSpice Transient Model

SNVMAD6.ZIP (1 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 (...)
要求
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HVSSOP (DGN) 8 Ultra Librarian
WSON (NGG) 6 Ultra Librarian
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