TPS2046 Series
2-ch, 0.25A loading, 0.44A ILIMIT, 2.7-5.5V, 80mΩ USB power switch, active-low
Manufacturer: Texas Instruments
Catalog(4 parts)
| Part | Voltage - Load▲▼ | Voltage - Load▲▼ | Supplier Device Package | Operating Temperature▲▼ | Operating Temperature▲▼ | Package / Case▲▼ | Package / Case | Rds On (Typ)▲▼ | Fault Protection | Output Type | Ratio - Input:Output | Current - Output (Max)▲▼ | Input Type | Interface | Voltage - Supply (Vcc/Vdd) | Switch Type | Output Configuration | Mounting Type | Number of Outputs▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
5.5 V | 2.700000047683716 V | 8-SOIC | 85 °C | -40 °C | 0.003899999894201755 m | 8-SOIC | 0.07000000029802322 Ω | Current Limiting (Fixed), Over Temperature, UVLO | N-Channel | 1:1 | 0.25 A | Inverting | On/Off | Not Required | General Purpose | High Side | Surface Mount | 2 ul | |
5.5 V | 2.700000047683716 V | 8-SOIC | 85 °C | -40 °C | 0.003899999894201755 m | 8-SOIC | 0.07999999821186066 Ω | Current Limiting (Fixed), Over Temperature, UVLO | N-Channel | 1:1 | 0.25 A | Inverting | On/Off | Not Required | General Purpose | High Side | Surface Mount | 2 ul | |
5.5 V | 2.700000047683716 V | 8-SOIC | 85 °C | 0 °C | 0.003899999894201755 m | 8-SOIC | 0.07999999821186066 Ω | Current Limiting (Fixed), Over Temperature, UVLO | N-Channel | 1:1 | 0.25 A | Inverting | On/Off | Not Required | General Purpose | High Side | Surface Mount | 2 ul | |
5.5 V | 2.700000047683716 V | 8-SOIC | 85 °C | -40 °C | 0.003899999894201755 m | 8-SOIC | 0.07000000029802322 Ω | Current Limiting (Fixed), Over Temperature, UVLO | N-Channel | 1:1 | 0.25 A | Inverting | On/Off | Not Required | General Purpose | High Side | Surface Mount | 2 ul |
Key Features
• 135-m-Maximum (5-V Input) High-Side MOSFET Switch250 mA Continuous Current per ChannelIndependent Short-Circuit and Thermal Protection With Overcurrent Logic OutputOperating Range...2.7-V to 5.5-VLogic-Level Enable Input2.5-ms Typical Rise TimeUndervoltage Lockout10 uA Maximum Standby Supply CurrentBidirectional SwitchAvailable in 8-pin SOIC and PDIP PackagesAmbient Temperature Range, -40°C to 85°C2-kV Human-Body-Model, 200-V Machine-Model ESD Protectiontypical applicationsNotebook, Desktop and Palmtop PCsMonitors, Keyboards, Scanners, and PrintersDigital Cameras, Phones, and PBXsHot-Insertion Applications135-m-Maximum (5-V Input) High-Side MOSFET Switch250 mA Continuous Current per ChannelIndependent Short-Circuit and Thermal Protection With Overcurrent Logic OutputOperating Range...2.7-V to 5.5-VLogic-Level Enable Input2.5-ms Typical Rise TimeUndervoltage Lockout10 uA Maximum Standby Supply CurrentBidirectional SwitchAvailable in 8-pin SOIC and PDIP PackagesAmbient Temperature Range, -40°C to 85°C2-kV Human-Body-Model, 200-V Machine-Model ESD Protectiontypical applicationsNotebook, Desktop and Palmtop PCsMonitors, Keyboards, Scanners, and PrintersDigital Cameras, Phones, and PBXsHot-Insertion Applications
Description
AI
The TPS2046 and TPS2056 dual power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely. These devices incorporate in single packages two 135mN-channel MOSFET high-side power switches for power-distribution systems that require multiple power switches. Each switch is controlled by a logic enable compatible with 5-V and 3-V logic. Gate drive is provided by an internal charge pump that controls 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 TPS2046 and TPS2056 limit the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx\) logic output low. 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 in overcurrent 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 TPS2046 and TPS2056 are designed to limit at 0.44-A load. These power distribution switches, available in 8-pin small-outline integrated circuit (SOIC) and 8-pin plastic dual-in-line packages (PDIP), operate over an ambient temperature range of -40°C to 85°C.
The TPS2046 and TPS2056 dual power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely. These devices incorporate in single packages two 135mN-channel MOSFET high-side power switches for power-distribution systems that require multiple power switches. Each switch is controlled by a logic enable compatible with 5-V and 3-V logic. Gate drive is provided by an internal charge pump that controls 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 TPS2046 and TPS2056 limit the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx\) logic output low. 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 in overcurrent 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 TPS2046 and TPS2056 are designed to limit at 0.44-A load. These power distribution switches, available in 8-pin small-outline integrated circuit (SOIC) and 8-pin plastic dual-in-line packages (PDIP), operate over an ambient temperature range of -40°C to 85°C.