TPS22981RGPR
ActiveTHUNDERBOLT™ HOST/PERIPHERAL POWER MUX (OPTIMIZED FOR THUNDERBOLT 2)
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TPS22981RGPR
ActiveTHUNDERBOLT™ HOST/PERIPHERAL POWER MUX (OPTIMIZED FOR THUNDERBOLT 2)
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Technical Specifications
Parameters and characteristics for this part
| Specification | TPS22981RGPR |
|---|---|
| Current - Output (Max) [Max] | 500 mA |
| Fault Protection | Reverse Current, Over Temperature, Current Limiting (Adjustable) |
| Interface | On/Off |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | High Side |
| Package / Case | 20-VFQFN Exposed Pad |
| Ratio - Input:Output [custom] | 1:1 |
| Supplier Device Package | 20-QFN (4x4) |
| Switch Type | General Purpose |
| Voltage - Load [Max] | 19.8 V |
| Voltage - Load [Min] | 3 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 2.85 | |
| 10 | $ 2.56 | |||
| 25 | $ 2.42 | |||
| 100 | $ 2.10 | |||
| 250 | $ 1.99 | |||
| 500 | $ 1.79 | |||
| 1000 | $ 1.51 | |||
| Digi-Reel® | 1 | $ 2.85 | ||
| 10 | $ 2.56 | |||
| 25 | $ 2.42 | |||
| 100 | $ 2.10 | |||
| 250 | $ 1.99 | |||
| 500 | $ 1.79 | |||
| 1000 | $ 1.51 | |||
| Tape & Reel (TR) | 3000 | $ 1.33 | ||
| Texas Instruments | LARGE T&R | 1 | $ 2.15 | |
| 100 | $ 1.89 | |||
| 250 | $ 1.32 | |||
| 1000 | $ 1.06 | |||
Description
General part information
TPS22981 Series
The TPS22981 device is a current-limited power mux providing a connection to a peripheral device from either a low-voltage supply (3 V to 3.6 V) or a high-voltage supply (4.5 V to 19.8 V). The desired output is selected by digital control signals.
The high-voltage (VHV) and low-voltage (V3P3) switch current limits are set with external resistance. Once the current limit is reached, the TPS22981 will control the switch to maintain the current at this limit.
When the high-voltage supply is not present, the TPS22981 will maintain the connection to the output from the low-voltage supply. Upon the presence of a high-voltage line and high-voltage enable signal, the high-voltage switch is turned on in conjunction with the low-voltage switch until a reverse current is detected through the low-voltage switch, allowing a seamless transition from low voltage to the high-voltage supply with minimal droop and shoot-through current.
Documents
Technical documentation and resources
