Texas Instruments Evaluation Module for TPS62622 TPS62622EVM-419 TPS62622EVM-419 데이터 시트
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TPS62622EVM-419
Connector and Test Point Descriptions
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Connector and Test Point Descriptions
4.1
Input / Output Connectors: TPS626xxEVM
4.1.1
J1 VIN
This header is the positive connection to the input power supply. The power supply must be connected
between J1 and J3 (GND). The leads to the input supply should be twisted and kept as short as possible.
The input voltage must be between 2.3 V and 5.5 V.
between J1 and J3 (GND). The leads to the input supply should be twisted and kept as short as possible.
The input voltage must be between 2.3 V and 5.5 V.
4.1.2
J2 S+/S–
J2 S+/S– are the sense connection for the input of the converter. Connect a voltmeter, sense connection
of a power supply, or oscilloscope to this header.
of a power supply, or oscilloscope to this header.
4.1.3
J3 GND
This header is the return connection to the input power supply. Connect the power supply between J3 and
J1 (VIN). The leads to the input supply should be twisted and kept as short as possible. The input voltage
must be between 2.3 V and 5.5 V.
J1 (VIN). The leads to the input supply should be twisted and kept as short as possible. The input voltage
must be between 2.3 V and 5.5 V.
Capacitor C1 compensates for parasitic inductance as a result of the wires from the dc power supply to
the EVM. It is not required in an actual application circuit.
the EVM. It is not required in an actual application circuit.
4.1.4
J4 VOUT
This header is the positive output of the step-down converter. The output voltage of the devices in the
TPS6261x/TPS6262x/TPS6266x families have fixed output voltages; refer to the specific device data
sheet for detailed information on the device output voltage.
TPS6261x/TPS6262x/TPS6266x families have fixed output voltages; refer to the specific device data
sheet for detailed information on the device output voltage.
4.1.5
J5 S+/S–
J5 S+/S– are the sense connection for the output of the converter. Connect a voltmeter, sense connection
of an electronic load, or oscilloscope to this header.
of an electronic load, or oscilloscope to this header.
4.1.6
J6 GND
J6 is the return connection of the converter. A load can be connected between J6 and J4 (VOUT).
4.2
Jumpers and Switches
4.2.1
JP1 ENABLE
This jumper enables/disables the converter on the EVM. Placing a shorting bar between ENABLE and ON
turns on the converter. Placing a shorting bar between ENABLE and OFF disables the converter.
turns on the converter. Placing a shorting bar between ENABLE and OFF disables the converter.
4.2.2
JP2 MODE
This jumper enables/disables the power-saving mode under light loads. Placing a shorting bar between
MODE and PWM disables the power-saving mode. If the power-save mode is disabled, the converter
operates in forced PWM mode over the entire load current range.
MODE and PWM disables the power-saving mode. If the power-save mode is disabled, the converter
operates in forced PWM mode over the entire load current range.
Placing a shorting bar between MODE and PSM enables the power-saving mode. The device operates in
power-saving mode under light load conditions. See the specific device data sheet for detailed information.
power-saving mode under light load conditions. See the specific device data sheet for detailed information.
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TPS6261x/TPS6262x/TPS6266xEVM
SLVU292A – April 2010 – Revised April 2010
Copyright © 2010, Texas Instruments Incorporated