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General Use and Description

3.1 EVM On-Board Jumper Default Installation

As ordered, the EVM should have 18 jumpers installed in the following locations.

Table 1. EVM Default Jumper Installation

Shunt Reference Designator Shunt Pin Position

J2, J5-J8, J11, J20, J22, J24, J28, J31, J34, JP2, JP5 Between pins 1 and 2

J4, JP1, JP3, JP4 Between pins 2 and 3

3.2 EVM Test Points, Indicators and Switches

Table 2. EVM Test Points, Indicators and Switches

TP/LED/SW Label Description

S1 MR Master reset input switch for TPS3860x0. Use this switch to reset the WDO pin and force local

resequence.

D2 (GRN) LWDT ON Indicates when the local watch dog timer is operational.

TP1 (RED) VREF TPS3860x0 VREF output nominally 1.2V

TP2 (RED) MR TPS3860x0 MR (master reset) input.

TP3 (RED) SCLK Serial clock input to TPS65055 from USB-GPIO adapter.

TP4 (RED) SDAT Serial data input-output to TPS65055 from USB-GPIO adapter.

3.3 EVM Input/Output Connectors and Test Jumpers

Table 3. EVM Input/Output Connectors

Connector Description

J14 EVM 5V input voltage (VIN). Use with GND at J16 and with JP1 set to the VIN position.

J16 EVM input GND used with J14 (VIN).

J3 Negative supply input used with J3 (GND). Set J4 shunt to the NEGVDC SNS4H position to monitor negative

supplies using SENSE4H.

J1 GND input used with J3 (NEGVDC).

J13 TPS65055 DCDC1 output voltage (VDCDC1) which is nominally 2.1VDC.

J15 GND output used with J13 (VDCDC1).

J17 TPS65055 DCDC2 output voltage (VDCDC2) which is nominally 1.0VDC.

J18 GND output used with J17 (VDCDC2).

J19 TPS65055 LDO1 output voltage (VLDO1) which is nominally 1.2VDC.

J21 GND output used with J19 (VLDO1).

J23 TPS65055 LDO2 output voltage (VLDO2) which is nominally 1.8VDC.

J25 GND output used with J23 (VLDO2).

J27 TPS65055 LDO3 output voltage (VLDO3) which is nominally 2.8VDC.

J29 GND output used with J27 (VLDO3).

J30 TPS65055 LDO4 output voltage (VLDO4) which is nominally 1.3VDC.

J32 GND output used with J30 (VLDO4).

J33 Used with the USB-GPIO adapter for communication with the TPS65055 using the TPS65055 GUI. The USB-GPIO

adapter can also provide 3.3V to the EVM (derived from the PC on which the GUI is operating) when JP1 is in the

3.3V position.

J12 Local watch dog timer reset (RST LWDT). Use this when J11 is set to the LWDT position when testing the watch

dog timer function. When a shunt is installed on J12 the local watch dog timer will reset causing the TPS3860x0

WDO signal to go low after timeout.

J10 External watch dog timer input terminal. Use this input when J11 is set to the EXT WDT position.

J9 TPS3860x0 WDO pin output.

SLVU341–October 2009 Evaluation Module for TPS386000 and TPS386040

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