Texas Instruments TPS650240 Evaluation Module TPS650240EVM-331 TPS650240EVM-331 Hoja De Datos
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TPS650240EVM-331
1.2
Power Sequencing
1.3
Related Documentation From Texas Instruments
2
Setup
2.1
Input / Output Connector Descriptions
2.1.1
J1 –VIN and GND
2.1.2
J2–VINLDO and GND
2.1.3
J3–DEFDCDC1
2.1.4
J4–DEFDCDC2
2.1.5
J5–DEFDCDC3
2.1.6
J6–Vout Ext LDO and GND
2.1.7
J7–EN_LDO
2.1.8
J8–EN_DCDC3
2.1.9
J9–EN_ DCDC2
Setup
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The TPS650240EVM-331 has been designed to allow DCDC3 of the TPS650240 device to power up as
soon as the input voltage has been applied. Once DCDC3 powers up, the TPS650240 DCDC1 output is
enabled at the same time that LDO1 and LDO2 are enabled. Upon DCDC1 powering up, the TPS650240
DCDC2 output is enabled along with the TPS79901 device.
soon as the input voltage has been applied. Once DCDC3 powers up, the TPS650240 DCDC1 output is
enabled at the same time that LDO1 and LDO2 are enabled. Upon DCDC1 powering up, the TPS650240
DCDC2 output is enabled along with the TPS79901 device.
TPS650240 data sheet (
This chapter describes the jumpers and connectors on the EVM as well as how to properly connect, setup,
and use the TPS650240EVM-331
and use the TPS650240EVM-331
Input voltage from external power supply, recommended max 5.5V. Input current is dependent on load but
will typically be below 2A.
will typically be below 2A.
Input voltage from external power supply, recommended max 5.5V. Input current is dependent on load but
will typically be below 2A. The EVM has this connected to VIN via R7.
will typically be below 2A. The EVM has this connected to VIN via R7.
Sets default voltage for DCDC1, 2.8V or 3.3V.
Sets default voltage for DCDC2, 1.8V or 2.5V.
Sets default voltage for DCDC3, 1.0V or 1.3V.
The output from the TPS79901 LDO with a max output current of 0.2mA and a 1.4V voltage setting.
Enable for both the LDO1 and LDO2 regulators.
Enable for the DCDC3 converter.
Enable for the DCDC2 converter.
TPS650240EVM-331
2
SLVU269 – September 2008