Texas Instruments TPS22980EVM- Thunderbolt™ Host/Peripheral Power MUX Evaluation Module TPS22980EVM TPS22980EVM 数据表
产品代码
TPS22980EVM
User
'
s Guide
SLVU599
–
October 2011
TPS22980EVM User
’
s Guide
Contents
1
Block Diagram
...............................................................................................................
2
Setup
.........................................................................................................................
2.1
Power Supply Inputs
...............................................................................................
2.2
Jumper Settings
....................................................................................................
2.3
Measuring Output Voltage
........................................................................................
2.4
Current Limit
........................................................................................................
3
Board Layout
................................................................................................................
4
Schematic
....................................................................................................................
List of Figures
1
Top Layer Assembly
........................................................................................................
2
Top Layer Routing
..........................................................................................................
3
Bottom Layer Routing
......................................................................................................
4
TPS22980EVM Schematic
................................................................................................
1
Block Diagram
The Texas Instruments TPS22980EVM evaluation module (EVM) helps designers evaluate the operation
and performance of the TPS22980: 3.3 V to 18 V Mux with overcurrent limit. The TPS22980 is a
current-limited power mux providing a connection to a peripheral device from either a low voltage supply
(3.15 V up to 3.6 V) or a high voltage supply (5 V up to 18 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
resistances. Once the current limit is reached, the TPS22980 will control the switch to maintain the current
at this limit.
and performance of the TPS22980: 3.3 V to 18 V Mux with overcurrent limit. The TPS22980 is a
current-limited power mux providing a connection to a peripheral device from either a low voltage supply
(3.15 V up to 3.6 V) or a high voltage supply (5 V up to 18 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
resistances. Once the current limit is reached, the TPS22980 will control the switch to maintain the current
at this limit.
The EVM contains one TPS22980 - 3.3 V to 18 V Mux with over current limit (See
).
Table 1. Device and Package Configurations
CONVERTER
IC
PACKAGE
U1
TPS22980RGPR
RGP
1
SLVU599
–
October 2011
TPS22980EVM User
’
s Guide
Copyright
©
2011, Texas Instruments Incorporated