Setup
2.1.4
J4 – DCDC_A Output Voltage
This header connects to the DCDC_A output voltage. Connect the load (processor) at this point if the load
current remains below 1 A. If the load current will exceed 1A, use terminal block J17 instead. The leads to
the load should be twisted and kept as short as possible to minimize EMI transmission and reduce
inductive voltage droop during a load transient event.
2.1.5
J5 – FB_A+ and FB_A-
Remote sense connector for the DCDC_A output voltage. As shipped, the EVM is configured for local
sensing of the output voltage. If output voltage sensing at the load (remote sensing) is desired, see the
section. This is a high impedance connection back to the TPS650380's remote
sense inputs. Monitor the output voltage at this point.
2.1.6
J6 – GND
This is the return connection for the DCDC_A load. If the load current will exceed 1 A, do not use headers
J4 and J6, but use terminal block J17 instead. The leads to the load should be twisted and kept as short
as possible to minimize EMI transmission and reduce inductive voltage droop during a load transient
event.
2.1.7
J7 – DCDC_B Output Voltage
This header connects to the DCDC_B output voltage. Connect the load (processor) at this point if the load
current remains below 1 A. If the load current will exceed 1A, use terminal block J18 instead. The leads to
the load should be twisted and kept as short as possible to minimize EMI transmission and reduce
inductive voltage droop during a load transient event.
2.1.8
J8 – FB_B+ and FB_B-
Remote sense connector for the DCDC_B output voltage. As shipped, the EVM is configured for local
sensing of the output voltage. If output voltage sensing at the load (remote sensing) is desired, see the
section. This is a high impedance connection back to the TPS650380's remote
sense inputs. Monitor the output voltage at this point.
2.1.9
J9 – GND
This is the return connection for the DCDC_B load. If the load current will exceed 1 A, do not use headers
J4 and J6, but use terminal block J18 instead. The leads to the load should be twisted and kept as short
as possible to minimize EMI transmission and reduce inductive voltage droop during a load transient
event.
2.1.10
J10 – DCDC_C Output Voltage
This header connects to the DCDC_C output voltage. Connect the load (processor) at this point. The
leads to the load should be twisted and kept as short as possible to minimize EMI transmission and
reduce inductive voltage droop during a load transient event.
2.1.11
J11 – FB_C+ and S-
Pin 1 is the remote sense connector for the DCDC_C output voltage. As shipped, the EVM is configured
for local sensing of the output voltage. If output voltage sensing at the load (remote sensing) is desired,
see the
section. This is a high impedance connection back to the TPS650380's
remote sense input. Pin 2 is used for monitoring the DCDC_C voltage and is not required to be connected
at the load. Monitor the output voltage at these points.
2.1.12
J12 – GND
This is the return connection for the DCDC_C load. The leads to the load should be twisted and kept as
short as possible to minimize EMI transmission and reduce inductive voltage droop during a load transient
event.
4
TPS650380EVM-054
SLVU720A – June 2012 – Revised November 2012
Copyright © 2012, Texas Instruments Incorporated
