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TPS2012A

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5.5V、1A、35mΩ 负载开关

产品详情

Number of channels 1 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Imax (A) 2 Ron (typ) (mΩ) 36 Shutdown current (ISD) (typ) (µA) 0.3 Quiescent current (Iq) (typ) (µA) 75 Soft start Fixed Rise Time Current limit type Fixed Features Analog current monitor Rating Catalog Operating temperature range (°C) -40 to 85 FET Internal Device type Load switches Function Short circuit protection, Thermal shutdown
Number of channels 1 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Imax (A) 2 Ron (typ) (mΩ) 36 Shutdown current (ISD) (typ) (µA) 0.3 Quiescent current (Iq) (typ) (µA) 75 Soft start Fixed Rise Time Current limit type Fixed Features Analog current monitor Rating Catalog Operating temperature range (°C) -40 to 85 FET Internal Device type Load switches Function Short circuit protection, Thermal shutdown
SOIC (D) 8 29.4 mm² 4.9 x 6
  • 33-m (5-V Input) High-Side MOSFET Switch
  • Short-Circuit and Thermal Protection
  • Operating Range . . . 2.7 V to 5.5 V
  • Logic-Level Enable Input
  • Typical Rise Time. . . 6.1 ms
  • Undervoltage Lockout
  • Maximum Standby Supply Current. . . 10 µA
  • No Drain-Source Back-Gate Diode
  • Available in 8-pin SOIC and 14-Pin TSSOP Packages
  • Ambient Temperature Range, -40°C to 85°C
  • 2-kV Human-Body-Model, 200-V Machine-Model ESD Protection

  • 33-m (5-V Input) High-Side MOSFET Switch
  • Short-Circuit and Thermal Protection
  • Operating Range . . . 2.7 V to 5.5 V
  • Logic-Level Enable Input
  • Typical Rise Time. . . 6.1 ms
  • Undervoltage Lockout
  • Maximum Standby Supply Current. . . 10 µA
  • No Drain-Source Back-Gate Diode
  • Available in 8-pin SOIC and 14-Pin TSSOP Packages
  • Ambient Temperature Range, -40°C to 85°C
  • 2-kV Human-Body-Model, 200-V Machine-Model ESD Protection

The TPS201xA family of power distribution switches is intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices are 50-m N-channel MOSFET high-side power switches. The switch is controlled by a logic enable compatible with 5-V logic and 3-V logic. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7 V.

When the output load exceeds the current-limit threshold or a short is present, the TPS201xA limits the output current to a safe level by switching into a constant-current mode. When continuous heavy overloads and short circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures the switch remains off until valid input voltage is present.

The TPS201xA devices differ only in short-circuit current threshold. The TPS2010A limits at 0.3-A load, the TPS2011 at 0.9-A load, the TPS2012A at 1.5-A load, and the TPS2013A at 2.2-A load (see Available Options). The TPS201xA is available in an 8-pin small-outline integrated-circuit (SOIC) package and in a 14-pin thin-shrink small-outline package (TSSOP) and operates over a junction temperature range of -40°C to 125°C.)

The TPS201xA family of power distribution switches is intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices are 50-m N-channel MOSFET high-side power switches. The switch is controlled by a logic enable compatible with 5-V logic and 3-V logic. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7 V.

When the output load exceeds the current-limit threshold or a short is present, the TPS201xA limits the output current to a safe level by switching into a constant-current mode. When continuous heavy overloads and short circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures the switch remains off until valid input voltage is present.

The TPS201xA devices differ only in short-circuit current threshold. The TPS2010A limits at 0.3-A load, the TPS2011 at 0.9-A load, the TPS2012A at 1.5-A load, and the TPS2013A at 2.2-A load (see Available Options). The TPS201xA is available in an 8-pin small-outline integrated-circuit (SOIC) package and in a 14-pin thin-shrink small-outline package (TSSOP) and operates over a junction temperature range of -40°C to 125°C.)

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* 数据表 Power Distribution Switches 数据表 (Rev. C) 2007年 9月 26日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
选择指南 电源管理指南 2018 (Rev. R) 2018年 6月 25日
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