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TPS22981RGPR ACTIVE

Thunderbolt™ Host/Peripheral Power Mux (Optimized for Thunderbolt 2)

NEW - Custom reel may be available
Inventory: 7,446
 

Quality information

RoHS Yes
REACH Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-2-260C-1 YEAR
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View

Packaging information

Package | Pins Package qty | Carrier Operating temperature range (°C)
VQFN (RGP) | 20 3,000 | LARGE T&R
Custom reel may be available
I (-40 to 85)
Package | Pins VQFN (RGP) | 20
Package qty | Carrier 3,000 | LARGE T&R
Custom reel may be available
Operating temperature range (°C) I (-40 to 85)
View TI packaging information

Features for the TPS22981

  • Powered from 3.3 V
  • 4.5-V to 19.8-V High-Voltage Switch
  • 3-V to 3.6-V Switch
  • Adjustable Current Limit
  • Thermal Shutdown
  • Make Before Break Switch
  • High-Voltage Discharge Before Low-Voltage Make
  • Reverse Current Blocking

Description for the TPS22981

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.

To prevent current backflow during a switch over from a VHV connection to a V3P3 connection, the TPS22981 will break the VHV connection, discharge the output to approximately 3.3 V and then make the V3P3 connection. The output may transition to 0 V when a load is present, before returning to 3.3 V.

The TPS22981 is available in a 4 mm × 4 mm × 1 mm VQFN package.

Pricing


Qty Price (USD)
1-99 $1.955
100-249 $1.713
250-999 $1.201
1,000+ $0.968