Evm Hardware Setup - Texas Instruments TPS61310EVM-638 User Manual

HARDWARE SETUP
2 HARDWARE SETUP
This section describes the jumpers and connectors of the EVM and how to properly connect, set up and
use the TPS61310EVM-638.
2.1

EVM Hardware Setup

Jumper/Connecter
J1 – VIN/GND
J2 – VOUT/GND
J3 –
VOUT/LED1/LED2/TS/GND
J4 – SCL/SDA/GND
2
J5 – I C Input for the
USB-To-GPIO
2
J6 – I C Input for the MSP430
USB-Debug-Interface
2
JP1 – I
C Pull-Up
JP2 – TS
JP3 – nReset
JP4 – Tx-Mask
JP5 – STRB1
JP6 – STRB0
JP7 – GPIO/PG/XINT
JP8 – Pull-up Resistor
JP9, 10 and 11 – Output
current evaluation
2
TPS61310EVM-638 Evaluation Module User Guide
Table 1. Board Input/Output Connector Descriptions
Function
J1 is for the IC positive input supply voltage and ground. The leads to the input supply should be
twisted and kept as short as possible to minimize EMI transmission and reduce inductive voltage
droop during a load-transient event. V
J2 is connected to the device output and GND pins. In flash or movie mode, V
the LED anodes and can be used to access the high-side LED voltage. In voltage regulation
mode, the header can be used to measure the regulated output voltage and connect an external
load.
These headers support external LEDs. The LED1 and LED2 headers link the LED cathodes to the
device current sinks. The LED anodes are connected to the VOUT output. The TS header is
provided for the NTC resistor (220kΩ) connection.
J4 is connected to the device I
monitor the traffic between the PC and the EVM or set up I
J5 provides a link to the USB-To-GPIO 10-pin ribbon cable interface. The included software uses
the adapter to communicate with the EVM via the I
J6 is a 14-pin JTAG interface. It links the device to the MSP430 USB debug interface. The
MSP430 embedded software uses the adapter to communicate with the EVM via the I
This jumper is used to connect the SCL and SDA to two 2.2kΩ pull-up resistors. These resistors
are either linked to the board input voltage or to ground. In normal use, the I
should be connected to Vin. This configuration is due to the I
JP2 is employed if the LED temperature is not monitored. In this case, the TS input should be tied
to Vin.
The nReset jumper is directly linked to the device hardware reset input. If this pin is LOW, the
device is forced to shutdown mode, and the I
Otherwise, if nReset = HIGH, the device operates normally.
JP4 is connected to the RF PA synchronization control input of the TPS61310. Tying this input
HIGH switches the LED current from flash to video-light operation. In video-light mode, the peak
current drained from the battery is significantly reduced.
JP5 selects the LED current to a high or low level. If the low current level is selected, the flash
mode is enabled. In the other configuration, the video light mode is selected.
JP6 sets STRB0 to Vin or to GND. If STRB0 is HIGH, all the LED current regulators are activated.
The middle pin of JP7 is connected to GPIO/PG on the TPS61310. The jumper is used to set
GPIO to a high or a low level.
JP8 allows connecting the GPIO/PG pull-up resistor to Vin. It is used to avoid setting a high level
when the GPIO pin is not used.
These jumpers facilitate LED current measurements.
Table 2. Default Jumper Settings
JUMPER
JP1
JP2
JP3
JP4
JP5
JP6
JP7
JP8
JP9
Copyright © 2011, Texas Instruments Incorporated
should be between 2.5V and 5.5V.
IN
2
C SCL and SDA. The serial clock and data line can be used to
2
C communication.
2
C protocol.
2
C open-drain architecture.
2
C control and all internal control registers are reset.
DEFAULT
High
Unconnected
High
Low
Low
High
Unconnected
Unconnected
Connected
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is connected to
OUT
2
C protocol.
2
C pull-up resistor
SLVU419 – April 2011
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