Packaging information
| Package | Pins VQFN (RTQ) | 56 |
| Operating temperature range (°C) -40 to 105 |
| Package qty | Carrier 2,000 | LARGE T&R |
Features for the TPS65981
- This device is certified by the USB-IF for
PD2.0
- PD2.0 is no longer certifiable on new designs as of June 2020
- All new designs requiring certification should use a PD3.0 compliant device
- Article on PD2.0 vs PD3.0
- Fully configurable USB PD controller
- Control for external DC/DC supplies through GPIO
- Ex: TPS65981EVM
- Port data multiplexer
- USB 2.0 HS data and low speed endpoint
- Sideband-use data for alternate modes
- GUI tool to easily configure TPS65981 for various applications
- Support for DisplayPort alternate mode
- Supports industrial temperature range
- For a more extensive selection guide and getting started information, please refer to www.ti.com/usb-c and E2E guide
- Control for external DC/DC supplies through GPIO
- Integrated fully managed power paths:
- Integrated 5-V, 3-A, 55-mΩ sourcing switch
- Integrated 5-V to 20-V, 3-A, 95-mΩ bi-directional load switch
- Gate Control and current sense for external 5-V to 20-V, 5-A bidirectional switch (back-to back NFETs)
- UL2367 cert#: E169910-20150728
- Integrated robust power path protection
- Integrated reverse current protection, undervoltage protection, overvoltage protection, and slew rate control the high-voltage bi-directional power path
- Integrated undervoltage and overvoltage protection and current limiting for inrush current protection for the 5-V/3-A source power path
-
USB Type-C Power Delivery (PD) controller
- 8 configurable GPIOs
- BC1.2 charging support
- USB PD 2.0 certified
- USB Type-C specification certified
- Cable attach and orientation detection
- Integrated VCONN switch
- Physical layer and policy engine
- 3.3-V LDO output for dead battery support
- Power supply from 3.3 V or VBUS source
- 1 I2C primary port
- 1 I2C secondary port
Description for the TPS65981
The TPS65981 is a highly integrated stand-alone USB Type-C and Power Delivery (PD) controller optimized for notebook applications. The TPS65981 integrates fully managed power paths with robust protection for a complete USB-C PD solution. The TPS65981 integrates a high speed multiplexer which is dependent the USB Type-C cable orientation that the CC pins provide. The multiplexer passes through side-band use data for alternate modes. The TPS65981 has a QFN package for reliable manufacturing with 0.5-mm Pitch and 2-Layer PCB compatibility and has an extended (industrial) temperature range. The TPS65981 is USB PD 2.0 certified which is no longer certifiable through USB IF.
The port-power switch provides up to 3 A downstream at 5 V for legacy and Type-C USB power. An additional bidirectional switch path provides USB PD power up to 3 A at a maximum of 20 V as either a source (host), sink (device), or source-sink.
The TPS65981 device is also an upstream-facing port (UFP), downstream-facing port (DFP), or dual-role port for data. The port-data multiplexer passes data to or from the top or bottom D+/D– signal pair at the port for USB 2.0 HS and has a USB 2.0 low-speed endpoint. Additionally, the sideband-use (SBU) signal pair is used for auxiliary or alternate modes of communication (DisplayPort, for example).
The power-management circuitry uses 3.3 V inside the system and also uses VBUS to start up and negotiate power for a dead-battery or no-battery condition.