TPS22944 5.5V、0.2A、400mΩ、100mA 電流制限ロード・スイッチ | TIJ.co.jp

TPS22944
この製品はすでに市場にリリースされており、ご購入できます。 一部の製品は、より新しい代替品を使用できる可能性があります。
5.5V、0.2A、400mΩ、100mA 電流制限ロード・スイッチ

 

推奨代替製品

  • TPS22949  -  電流制限付きロード・スイッチ、低雑音レギュレーション機能付

Special Note

No EVM exists for the TPS22944, however, similar EVM TPS22945EVM-082 is available.

概要

The TPS22941/2/3/4/5 load switches provide protection to systems and loads in high-current conditions. The devices contain a 0.4-Ω current-limited P-channel MOSFET that can operate over an input voltage range of 1.62 V to 5.5 V. Current is prevented from flowing when the MOSFET is off. The switch is controlled by an on/off input (ON), which is capable of interfacing directly with low-voltage control signals. The TPS22941/2/3/4/5 includes thermal shutdown protection that prevents damage to the device when a continuous over-current condition causes excessive heating by turning off the switch.

These devices provide an integrated, robust solution to provide current limiting the output current to a safe level by switching into a constant-current mode when the ouptut load exceeds the current-limit threshold. The OC logic output asserts low during overcurrent, undervoltage, or overtemperature conditions. These additional features make the TPS22941/2/3/4/5 an ideal solution for applications where current limiting is necessary.

This family of devices are available in a SC70-5 (DCK) package. It is characterized for operation over the free-air temperature range of –40°C to 85°C.

特長

  • Input Voltage Range: 1.62 V to 5.5 V
  • Low ON resistance
    • rON = 0.4 Ω at VIN = 5.5 V
    • rON = 0.5 Ω at VIN = 3.3 V
    • rON = 0.6 Ω at VIN = 2.5 V
    • rON = 0.8 Ω at VIN = 1.8 V
  • Minimum Current Limit: 40 mA or 100 mA
  • Undervoltage Lockout (UVLO)
  • Thermal Shutdown
  • Shutdown Current < 1 µA
  • Fast Current Limit Response Time
  • Fault Blanking
  • Auto Restart
  • 1.8-V Compatible Control Input Thresholds
  • ESD Performance Tested Per JESD 22
    • 4000-V Human-Body Model
      (A114-B, Class II)
    • 1000-V Charged-Device Model (C101)
  • Tiny SC-70 (DCK) Package
  • UL Recognized Component (UL File 169910)
  • Evaluated to IEC 60950-1, Ed 2, Am1, Annex CC,
    Test Program 2 with CB Report

機能一覧

他の製品と比較 ロード・スイッチ メール Excelへダウンロード
Part number オーダー・オプション Number of channels (#) Vin (Min) (V) Vin (Max) (V) Imax (A) Ron (Typ) (mOhm) Shutdown current (ISD) (Typ) (uA) Quiescent current (Iq) (Typ) (uA) Soft start Rise time (Typ) (us) Features Operating temperature range (C)
TPS22944 ご注文 1     1.62     5.5     0.08     500     1     40     Fixed Rise Time     10     Thermal Shutdown     -40 to 85    
TPS22941 ご注文 1     1.62     5.5     0.08     500     1     40     Fixed Rise Time     10     Active Low
Thermal Shutdown    
-40 to 85    
TPS22942 ご注文 1     1.62     5.5     0.2     500     1     40     Fixed Rise Time     10     Active Low
Thermal Shutdown    
-40 to 85    
TPS22943 ご注文 1     1.62     5.5     0.2     500     1     40     Fixed Rise Time     10     Thermal Shutdown     -40 to 85    
TPS22945 ご注文 1     1.62     5.5     0.2     500     1     40     Fixed Rise Time     10     Thermal Shutdown     -40 to 85    
TPS22946 ご注文 1     1.62     5.5     0.235     400     0.1     1.3     Fixed Rise Time     35     Thermal Shutdown     -40 to 85    
TPS22948 ご注文 1     2.5     5.5     0.1     300     5     50     Fixed Rise Time     500     Reverse Current Blocking     -40 to 105