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TPS22970

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具有輸出放電功能的 3.6V、4A、4.7mΩ 負載開關

產(chǎn)品詳情

Imax (A) 4 Vin (max) (V) 3.6 Vin (min) (V) 0.65 Number of channels 1 Features Inrush current control, Quick output discharge, Thermal shutdown Quiescent current (Iq) (typ) (μA) 35 Soft start Fixed Rise Time Rating Catalog Ron (typ) (mΩ) 4.7 Shutdown current (ISD) (typ) (μA) 1 Current limit type None Function Inrush current control, Thermal shutdown FET Internal Operating temperature range (°C) -40 to 105 Device type Load switches
Imax (A) 4 Vin (max) (V) 3.6 Vin (min) (V) 0.65 Number of channels 1 Features Inrush current control, Quick output discharge, Thermal shutdown Quiescent current (Iq) (typ) (μA) 35 Soft start Fixed Rise Time Rating Catalog Ron (typ) (mΩ) 4.7 Shutdown current (ISD) (typ) (μA) 1 Current limit type None Function Inrush current control, Thermal shutdown FET Internal Operating temperature range (°C) -40 to 105 Device type Load switches
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.
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類型 標題 下載最新的英語版本 日期
* 數(shù)據(jù)表 TPS22970 3.6-V, 4-A, 4.7-mΩ On-Resistance Load Switch 數(shù)據(jù)表 (Rev. A) PDF | HTML 2017年 7月 20日
應用手冊 Load Switch Thermal Considerations (Rev. A) 2018年 10月 11日
應用手冊 Basics of Load Switches (Rev. A) 2018年 9月 5日
應用手冊 Selecting a Load Switch to Replace a Discrete Solution 2017年 4月 30日
應用手冊 Timing of Load Switches 2017年 4月 27日
用戶指南 TPS22970 Load Switch Evaluation Module 2016年 11月 30日
應用手冊 Fundamentals of On-Resistance in Load Switches 2016年 6月 9日
應用手冊 Quiescent Current vs Shutdown Current for Load Switch Power Consumption 2016年 3月 30日
應用手冊 Managing Inrush Current (Rev. A) 2015年 5月 28日

設計和開發(fā)

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評估板

TPS22970EVM — TPS22970 3.6V、4A、5.3mΩ 導通電阻負載開關評估模塊

TPS22970 評估模塊 (EVM) 是一個經(jīng)全面封裝測試的電路，用于評估 TPS22970 負載開關。TPS22970EVM 可讓用戶在不同負載條件下（0A 至 4A）向 TPS22970 施加不同的輸入電壓（0.65V 至 3.6V）。在該 EVM 上可監(jiān)測輸出、輸入和開關波形。

用戶指南: PDF
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仿真模型

TPS22970 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMC66A.ZIP (63 KB) - PSpice Model
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DSBGA (YZP) 8 Ultra Librarian

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  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續(xù)可靠性監(jiān)測
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