Texas Instruments TPS92682EVM, Руководство пользователя, Страница: 9 / 49

SSN0
DC
Power
Supply
+
t
A
t
+
+ t A
+
t
V
CH1
LED
LOAD
t
+
Connection to other
SPI Controlled EVMs
SPI connection to
MSP-EXP432E401Y
LaunchPad connector J2/4
SPI connection to
MSP-EXP432E401Y
LaunchPad connector J1/3
+
t
A
+
t
V
CH2
LED
LOAD
t
+
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Description
9 SLUUC13A – May 2019 – Revised August 2019
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Copyright © 2019, Texas Instruments Incorporated
TPS92682EVM Constant Current Two-channel Boost and Boost-to-Battery
Figure 1. Component Connections
Table 1. Connector Descriptions
Connector Label Description
J10 SPI control from the
MSP-EXP432E401Y
LaunchPad
J10 and J11 allow attachment of a header cable for SPI control of the TPS92682-
Q1 to the TI SimpleLink™ Ethernet MSP-EXP432E401Y MCU LaunchPad™
Development Kit, part number MSP-EXP432E401Y
J11
J8 SPI control signals to
other SPI controlled
EVM
J8 and J9 allow star connection of TPS92682EVM-70 boards to each other with one
MSP-EXP432E401Y control board.
J9
J1 VIN, GND
J1 connects the input power to the TPS92682EVM-070. The board silkscreen
identifies VIN pins with "Vbatt" and the "GND" markings.
J2
Channel-1 and Channel-
2 and GND
J2 is connected to the channel-1 output and J5 is connected to the channel-2 output
of the TPS92682EVM-070.
J5
J6 VDD jumper
J6 is a jumper provided to share VDD with other SPI controlled EVM, in case a
digital supply is needed. For the operation of this EVM, leave this jumper open.
J3
PWM1 and PWM2
jumpers
J3 and J4 are jumpers to apply external PWM signals to the two channels. When
the jumpers are removed and the R28 and R29 zero-
Ω resistors are installed, the
PWM signals can be generated from the MSP-EXP432E401Y controller board.
When the jumpers are populated (by default), the PWM1 and PWM2 pins of the
TPS92682-Q1 are connected to VDD. The PWM signals can be used for PWM-
dimming of the LED current.
J4
J7
SSN configuration
jumper
J7 allows configuration of the SSN chip select line, when multiple chips on the same
SPI bus are used. By default, evaluation module is configured to be connected to
the SSN0 of the MSP-EXP432E401Y controller board.