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TPS22919-Q1

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TPS22919-Q1

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Product type General-purpose Vin (max) (V) 5.5 Vin (min) (V) 1.6 Overcurrent response Short-circuit protection Imax (A) 1.5 Rating Automotive Features Inrush current control, Quick output discharge, Short circuit protection, Thermal shutdown Number of channels 1 Quiescent current (Iq) (typ) (µA) 8 Shutdown current (ISD) (typ) (µA) 0.002 Soft start Fixed Rise Time Ron (typ) (mΩ) 90 Operating temperature range (°C) -40 to 125
Product type General-purpose Vin (max) (V) 5.5 Vin (min) (V) 1.6 Overcurrent response Short-circuit protection Imax (A) 1.5 Rating Automotive Features Inrush current control, Quick output discharge, Short circuit protection, Thermal shutdown Number of channels 1 Quiescent current (Iq) (typ) (µA) 8 Shutdown current (ISD) (typ) (µA) 0.002 Soft start Fixed Rise Time Ron (typ) (mΩ) 90 Operating temperature range (°C) -40 to 125
SOT-SC70 (DCK) 6 4.2 mm² (2 mm × 2.1 mm)
  • Qualified for automotive applications
  • AEC-Q100 qualified:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
  • Input operating voltage range (VIN):
    1.6 V to 5.5 V
  • Maximum continuous current (IMAX): 1.5 A
  • On-Resistance (RON):
    • 5-V VIN: 89 mΩ (typical)
    • 3.6-V VIN: 90 mΩ (typical)
    • 1.8-V VIN: 105 mΩ (typical)
  • Output short protection (ISC): 3 A (typical)
  • Low power consumption:
    • ON state (IQ): 8 µA (typical)
    • OFF state (ISD): 2 nA (typical)
  • Smart ON pin pull down (RPD):
    • ON ≥ VIH (ION): 100 nA (maximum)
    • ON ≤ VIL (RPD): 530 kΩ (typical)
  • Slow Turn ON timing to limit inrush current (tON):
    • 5.0 V Turn ON time (tON):
      1.95 ms at 3.2 mV/µs
    • 3.6 V Turn ON time (tON):
      1.75 ms at 2.7 mV/µs
    • 1.8 V Turn ON time (tON):
      1.5 ms at 1.8 mV/µs
  • Adjustable output discharge and fall time:
    • Internal QOD resistance = 24 Ω (typical)
  • Qualified for automotive applications
  • AEC-Q100 qualified:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
  • Input operating voltage range (VIN):
    1.6 V to 5.5 V
  • Maximum continuous current (IMAX): 1.5 A
  • On-Resistance (RON):
    • 5-V VIN: 89 mΩ (typical)
    • 3.6-V VIN: 90 mΩ (typical)
    • 1.8-V VIN: 105 mΩ (typical)
  • Output short protection (ISC): 3 A (typical)
  • Low power consumption:
    • ON state (IQ): 8 µA (typical)
    • OFF state (ISD): 2 nA (typical)
  • Smart ON pin pull down (RPD):
    • ON ≥ VIH (ION): 100 nA (maximum)
    • ON ≤ VIL (RPD): 530 kΩ (typical)
  • Slow Turn ON timing to limit inrush current (tON):
    • 5.0 V Turn ON time (tON):
      1.95 ms at 3.2 mV/µs
    • 3.6 V Turn ON time (tON):
      1.75 ms at 2.7 mV/µs
    • 1.8 V Turn ON time (tON):
      1.5 ms at 1.8 mV/µs
  • Adjustable output discharge and fall time:
    • Internal QOD resistance = 24 Ω (typical)

The TPS22919-Q1 device is a small, single channel load switch with controlled slew rate. The device contains an N-channel MOSFET that can operate over an input voltage range of 1.6 V to 5.5 V and can support a maximum continuous current of 1.5 A.

The switch ON state is controlled by a digital input that is capable of interfacing directly with low-voltage control signals. When power is first applied, a Smart Pull Down is used to keep the ON pin from floating until system sequencing is complete. Once the pin is deliberately driven High (>VIH), the Smart Pull Down will be disconnected to prevent unnecessary power loss.

The TPS22919-Q1 load switch is also self-protected, meaning that it protects against short circuit events on the output of the device. It also has thermal shutdown protection to prevent any damage from overheating.

TPS22919-Q1 is available in a standard SC-70 package characterized for operation over a junction temperature range of –40°C to 125°C.

The TPS22919-Q1 device is a small, single channel load switch with controlled slew rate. The device contains an N-channel MOSFET that can operate over an input voltage range of 1.6 V to 5.5 V and can support a maximum continuous current of 1.5 A.

The switch ON state is controlled by a digital input that is capable of interfacing directly with low-voltage control signals. When power is first applied, a Smart Pull Down is used to keep the ON pin from floating until system sequencing is complete. Once the pin is deliberately driven High (>VIH), the Smart Pull Down will be disconnected to prevent unnecessary power loss.

The TPS22919-Q1 load switch is also self-protected, meaning that it protects against short circuit events on the output of the device. It also has thermal shutdown protection to prevent any damage from overheating.

TPS22919-Q1 is available in a standard SC-70 package characterized for operation over a junction temperature range of –40°C to 125°C.
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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 TPS22919-Q1 5.5 V, 1.5 A, 90-mΩ Self-Protected Load Switch 数据表 (Rev. A) PDF | HTML 2020-6-30
* 辐射与可靠性报告 TPS22919EVM CISPR-25 EMI Measurement Report PDF | HTML 2022-7-7
功能安全信息 TPS22919-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2026-1-30
电子书 11 Ways to Protect Your Power Path 2019-7-3
应用简报 Making the Switch to an Integrated Load Switch 2019-6-11
应用手册 Load Switch Thermal Considerations (Rev. A) 2018-10-11
应用手册 Basics of Load Switches (Rev. A) 2018-9-5

设计与开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

TPS22919EVM — TPS22919 5.5V、1.5A、100mΩ 导通电阻负载开关评估模块

TPS22919 评估模块 (EVM) 是经过封装测试的电路，用于评估 TPS22919 负载开关。该 TPS22919EVM 可让用户在不同的负载条件下（0A 至 1.5A）向 TPS22919 器件施加不同的输入电压（1.6V 至 5.5V）。可轻松、准确地对导通电阻、上升时间和输出下拉电阻等参数进行评估。

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仿真模型

TPS22919 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMCW8A.ZIP (51 KB) - PSpice 模型
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参考设计

TIDA-020065 — 智能保险丝高侧开关控制器参考设计

该参考设计攻克了通常与更换标准熔断型保险丝相关的挑战。通过实施 TPS1213-Q1 高侧开关控制器、INA296B-Q1 电流检测放大器和微控制器，该设计可提供 I2t 过流保护、低功耗模式（用于更大限度地降低功耗），并能够驱动阻性、容性和感性负载。该设计包含许多配置选项，其中的双向电流检测支持工程师针对高电流智能保险丝应用运行各种测试。

支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
SOT-SC70 (DCK) 6 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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