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  • 具有集成驱动器、保护和温度报告功能的 LMG3522R030-Q1 650V 30mΩ GaN FET

    • ZHCSNE5D October   2020  – February 2024 LMG3522R030-Q1

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  • 具有集成驱动器、保护和温度报告功能的 LMG3522R030-Q1 650V 30mΩ GaN FET
  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Switching Characteristics
    7. 5.7 Typical Characteristics
  7. 6 Parameter Measurement Information
    1. 6.1 Switching Parameters
      1. 6.1.1 Turn-On Times
      2. 6.1.2 Turn-Off Times
      3. 6.1.3 Drain-Source Turn-On Slew Rate
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  GaN FET Operation Definitions
      2. 7.3.2  Direct-Drive GaN Architecture
      3. 7.3.3  Drain-Source Voltage Capability
      4. 7.3.4  Internal Buck-Boost DC-DC Converter
      5. 7.3.5  VDD Bias Supply
      6. 7.3.6  Auxiliary LDO
      7. 7.3.7  Fault Detection
        1. 7.3.7.1 Overcurrent Protection and Short-Circuit Protection
        2. 7.3.7.2 Overtemperature Shutdown
        3. 7.3.7.3 UVLO Protection
        4. 7.3.7.4 Fault Reporting
      8. 7.3.8  Drive-Strength Adjustment
      9. 7.3.9  Temperature-Sensing Output
      10. 7.3.10 Ideal-Diode Mode Operation
        1. 7.3.10.1 Overtemperature-Shutdown Ideal-Diode Mode
    4. 7.4 Start-Up Sequence
    5. 7.5 Safe Operation Area (SOA)
      1. 7.5.1 Repetitive SOA
    6. 7.6 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Slew Rate Selection
          1. 8.2.2.1.1 Start-Up and Slew Rate With Bootstrap High-Side Supply
        2. 8.2.2.2 Signal Level-Shifting
        3. 8.2.2.3 Buck-Boost Converter Design
      3. 8.2.3 Application Curves
    3. 8.3 Do's and Don'ts
    4. 8.4 Power Supply Recommendations
      1. 8.4.1 Using an Isolated Power Supply
      2. 8.4.2 Using a Bootstrap Diode
        1. 8.4.2.1 Diode Selection
        2. 8.4.2.2 Managing the Bootstrap Voltage
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
        1. 8.5.1.1 Solder-Joint Reliability
        2. 8.5.1.2 Power-Loop Inductance
        3. 8.5.1.3 Signal-Ground Connection
        4. 8.5.1.4 Bypass Capacitors
        5. 8.5.1.5 Switch-Node Capacitance
        6. 8.5.1.6 Signal Integrity
        7. 8.5.1.7 High-Voltage Spacing
        8. 8.5.1.8 Thermal Recommendations
      2. 8.5.2 Layout Examples
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 接收文档更新通知
    3. 9.3 支持资源
    4. 9.4 Trademarks
    5. 9.5 静电放电警告
    6. 9.6 Export Control Notice
    7. 9.7 术语表
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
  13. 重要声明
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Data Sheet

具有集成驱动器、保护和温度报告功能的 LMG3522R030-Q1 650V 30mΩ GaN FET

本资源的原文使用英文撰写。 为方便起见，TI 提供了译文；由于翻译过程中可能使用了自动化工具，TI 不保证译文的准确性。 为确认准确性，请务必访问 ti.com 参考最新的英文版本（控制文档）。

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1 特性

  • 符合面向汽车应用的 AEC-Q100 标准
    • 温度等级 1：–40°C 至 +125°C，TA
    • 结温：–40°C 至 +150°C，TJ
  • 带集成栅极驱动器的 650V GaN-on-Si FET
    • 集成高精度栅极偏置电压
    • 200V/ns FET 释抑
    • 2MHz 开关频率
    • 20V/ns 至 150V/ns 压摆率，用于优化开关性能和缓解 EMI
    • 由 7.5V 至 18V 电源供电
  • 强大的保护
    • 响应时间 < 100ns 的逐周期过流和锁存短路保护
    • 硬开关时可承受 720V 浪涌
    • 针对内部过热和 UVLO 监控的自我保护
  • 高级电源管理
    • 数字温度 PWM 输出
  • 顶部冷却 12mm × 12mm VQFN 封装将电气路径和散热路径分开，可实现超低的电源环路电感

2 应用

  • 开关模式电源转换器
  • 商用网络和服务器 PSU
  • 商用通信电源整流器
  • 车载充电器 (OBC) 和无线充电器
  • 直流/直流转换器
GUID-56727E62-3C5A-489B-87F9-87E74F3E3739-low.gif 简化版方框图

3 说明

LMG3522R030-Q1 GaN FET 具有集成式驱动器和保护功能，适用于开关模式电源转换器，可让设计人员实现更高水平的功率密度和效率。

LMG3522R030-Q1 集成了一个硅驱动器，可实现高达 150V/ns 的开关速度。与分立式硅栅极驱动器相比，TI 的集成式精密栅极偏置可实现更高的开关 SOA。这种集成特性与 TI 的低电感封装技术相结合，可在硬开关电源拓扑中提供干净的开关和超小的振铃。可调栅极驱动强度允许将压摆率控制在 20V/ns 至 150V/ns 之间，这可用于主动控制 EMI 并优化开关性能。

高级电源管理功能包括数字温度报告和故障检测。GaN FET 的温度通过可变占空比 PWM 输出进行报告，这可简化器件加载管理。报告的故障包括过热、过流和 UVLO 监控。

封装信息
器件型号 封装(1) 封装尺寸(2)
LMG3522R030-Q1 RQS（VQFN，52） 12.00mm x 12.00mm
(1) 如需了解所有可用封装，请参阅数据表末尾的可订购产品附录。
(2) 封装尺寸（长 × 宽）为标称值，并包括引脚（如适用）。
GUID-20220511-SS0I-TTVC-W9BZ-WLXVDCQWX2WC-low.svg>100V/ns 时的开关性能

4 Pin Configuration and Functions

Figure 4-1 RQS Package,52-Pin VQFN(Top View)
Table 4-1 Pin Functions
PIN TYPE(1) DESCRIPTION
NAME NO.
NC1 1, 16 — Used to anchor QFN package to PCB. Pins must be soldered to PCB landing pads. The PCB landing pads are non-solder mask defined pads and must not be physically connected to any other metal on the PCB. Internally connected to DRAIN.
DRAIN 2–15 P GaN FET drain. Internally connected to NC1.
NC2 17, 27, 43, 47, 52 — Used to anchor QFN package to PCB. Pins must be soldered to PCB landing pads. The PCB landing pads are non-solder mask defined pads and must not be physically connected to any other metal on the PCB. Internally connected to SOURCE and THERMAL PAD.
SOURCE 18–26, 28–39 P GaN FET source. Internally connected to NC2 and THERMAL PAD.
VNEG 40, 41 P Internal buck-boost converter negative output. Used as the negative supply to turn off the depletion mode GaN FET. Bypass to SOURCE with a 2.2-µF capacitor.
BBSW 42 P Internal buck-boost converter switch pin. Connect an inductor from this point to SOURCE.
VDD 44 P Device input supply.
IN 45 I CMOS-compatible non-inverting input used to turn the FET on and off.
FAULT 46 O Push-pull digital output that asserts low during a fault condition. Refer to Fault Detection for details.
OC 48 O Push-pull digital output that asserts low during overcurrent and short-circuit fault conditions. Refer to Fault Detection for details.
TEMP 49 O Push-pull digital output that gives information about the GaN FET temperature. Outputs a fixed 9-kHz pulsed waveform. The device temperature is encoded as the duty cycle of the waveform.
RDRV 50 I Drive-strength selection pin. Connect a resistor from this pin to SOURCE to set the turn-on drive strength to control slew rate. Tie the pin to SOURCE to enable 150 V/ns and tie the pin to LDO5V to enable 100 V/ns.
LDO5V 51 P 5-V LDO output for external digital isolator. If using this externally, connect a 0.1-µF or greater capacitor to SOURCE.
THERMAL PAD — — Thermal pad. Internally connected to SOURCE and NC2.
(1) I = input, O = output, P = power

 
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