主页 电源管理 电源开关 负载开关

TPS22970

正在供货

具有输出放电功能的 3.6V、4A、4.7mΩ 负载开关

产品详情

Number of channels 1 Vin (min) (V) 0.65 Vin (max) (V) 3.6 Imax (A) 4 Ron (typ) (mΩ) 4.7 Shutdown current (ISD) (typ) (µA) 1 Quiescent current (Iq) (typ) (µA) 35 Soft start Fixed Rise Time Current limit type None Features Quick output discharge, Thermal shutdown Rating Catalog Operating temperature range (°C) -40 to 105 FET Internal Device type Load switches Function Inrush current control, Thermal shutdown
Number of channels 1 Vin (min) (V) 0.65 Vin (max) (V) 3.6 Imax (A) 4 Ron (typ) (mΩ) 4.7 Shutdown current (ISD) (typ) (µA) 1 Quiescent current (Iq) (typ) (µA) 35 Soft start Fixed Rise Time Current limit type None Features Quick output discharge, Thermal shutdown Rating Catalog Operating temperature range (°C) -40 to 105 FET Internal Device type Load switches Function Inrush current control, Thermal shutdown
DSBGA (YZP) 8 2.8125 mm² 2.25 x 1.25
  • Input Voltage Range (VIN): 0.65 V to 3.6 V
  • On-Resistance
    • RON = 4.7 mΩ (Typical) at VIN ≥ 1.8 V
    • RON = 5.1 mΩ (Typical) at VIN = 1.05 V
    • RON = 6.4 mΩ (Typical) at VIN = 0.65 V
  • Maximum Continuous Switch Current (IMAX): 4 A
  • ON State (IQ): 30 µA (Typical) at VIN > 1.2 V
  • OFF State (ISD): 1 µA (Typical) at VIN > 1.8 V
  • Controlled Slew Rate to Avoid Inrush Current
    • 3.6 V Turn-ON time (tON): 1530 µs
    • 0.65 V Turn-ON time (tON): 815 µs
  • Low Threshold Enable (ON) Supports Use of Logic as Low as 0.9 V (VIH) of Logic
  • Thermal Shutdown (TSD)
  • Quick Output Discharge (QOD): 150-Ω (Typical)
  • Input Voltage Range (VIN): 0.65 V to 3.6 V
  • On-Resistance
    • RON = 4.7 mΩ (Typical) at VIN ≥ 1.8 V
    • RON = 5.1 mΩ (Typical) at VIN = 1.05 V
    • RON = 6.4 mΩ (Typical) at VIN = 0.65 V
  • Maximum Continuous Switch Current (IMAX): 4 A
  • ON State (IQ): 30 µA (Typical) at VIN > 1.2 V
  • OFF State (ISD): 1 µA (Typical) at VIN > 1.8 V
  • Controlled Slew Rate to Avoid Inrush Current
    • 3.6 V Turn-ON time (tON): 1530 µs
    • 0.65 V Turn-ON time (tON): 815 µs
  • Low Threshold Enable (ON) Supports Use of Logic as Low as 0.9 V (VIH) of Logic
  • Thermal Shutdown (TSD)
  • Quick Output Discharge (QOD): 150-Ω (Typical)

The TPS22970 is a small, space-saving load switch with controlled Turn-ON to reduce inrush current. The device contains an N-channel MOSFET that can operate over an input voltage range of 0.65 V to 3.6 V and pulsed switch currents up to 4 A. An integrated charge pump biases the NMOS switch in order to achieve a minimum switch ON resistance (RON). The switch is controlled by an on and off input (ON), which is capable of interfacing directly with low-voltage control signals.

The TPS22970 is capable of thermal shutdown when the junction temperature is above the threshold, turning the switch off. The switch turns on again when the junction temperature stabilizes to a safe range.

The TPS22970 has a 150-Ω on-chip resistor for quick discharge of the output when switch is disabled to avoid any unknown state caused by floating supply to the downstream load.

The TPS22970 has an internally controlled rise time in order to reduce inrush current.

The TPS22970 is available in an ultra-small, space saving 8-pin WCSP package and is characterized for operation over the free-air temperature range of –40°C to +105°C.

The TPS22970 is a small, space-saving load switch with controlled Turn-ON to reduce inrush current. The device contains an N-channel MOSFET that can operate over an input voltage range of 0.65 V to 3.6 V and pulsed switch currents up to 4 A. An integrated charge pump biases the NMOS switch in order to achieve a minimum switch ON resistance (RON). The switch is controlled by an on and off input (ON), which is capable of interfacing directly with low-voltage control signals.

The TPS22970 is capable of thermal shutdown when the junction temperature is above the threshold, turning the switch off. The switch turns on again when the junction temperature stabilizes to a safe range.

The TPS22970 has a 150-Ω on-chip resistor for quick discharge of the output when switch is disabled to avoid any unknown state caused by floating supply to the downstream load.

The TPS22970 has an internally controlled rise time in order to reduce inrush current.

The TPS22970 is available in an ultra-small, space saving 8-pin WCSP package and is characterized for operation over the free-air temperature range of –40°C to +105°C.

下载 观看带字幕的视频 视频

您可能感兴趣的相似产品

open-in-new 比较替代产品
功能与比较器件相同但引脚有所不同
TPS22995 正在供货 具有可调上升时间的 5.5V、3.5A、20mΩ 导通电阻负载开关 Same max current with adjustable slew rate in a smaller size

技术文档

star =有关此产品的 TI 精选热门文档
未找到结果。请清除搜索并重试。
查看全部 9
类型 标题 下载最新的英语版本 日期
* 数据表 TPS22970 3.6-V, 4-A, 4.7-mΩ On-Resistance Load Switch 数据表 (Rev. A) PDF | HTML 2017年 7月 20日
应用手册 Load Switch Thermal Considerations (Rev. A) 2018年 10月 11日
应用手册 Basics of Load Switches (Rev. A) 2018年 9月 5日
应用手册 Selecting a Load Switch to Replace a Discrete Solution 2017年 4月 30日
应用手册 Timing of Load Switches 2017年 4月 27日
用户指南 TPS22970 Load Switch Evaluation Module 2016年 11月 30日
应用手册 Fundamentals of On-Resistance in Load Switches 2016年 6月 9日
应用手册 Quiescent Current vs Shutdown Current for Load Switch Power Consumption 2016年 3月 30日
应用手册 Managing Inrush Current (Rev. A) 2015年 5月 28日

设计和开发

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

TPS22970EVM — TPS22970 3.6V、4A、5.3mΩ 导通电阻负载开关评估模块

TPS22970 评估模块 (EVM) 是一个组装完备且经过测试的电路,用于评估 TPS22970 负载开关。TPS22970EVM 可让用户在不同负载条件下(0A 至 4A)向 TPS22970 施加不同的输入电压(0.65V 至 3.6V)。可在 EVM 上监控输出、输入和开关波形。

用户指南: PDF
TI.com 上无现货
仿真模型

TPS22970 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMC66A.ZIP (63 KB) - PSpice Model
模拟工具

PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice®

PSpice® for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence® 的模拟分析引擎。PSpice for TI 可免费使用,包括业内超大的模型库之一,涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

借助 PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。

在 PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
封装 引脚 下载
DSBGA (YZP) 8 查看选项

订购和质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。

支持和培训

视频