Texas Instruments BOOSTXL-TPS65218, Руководство пользователя

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Getting Started
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6 SLVUBH5 – October 2018
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BOOSTXL-TPS65218 EVM User's Guide
Table 1 lists all of the electrical connections made when the headers of the BOOSTXL-TPS65218 and
MSP430F5529 LaunchPad are connected correctly.
(1)
The net named 3V3LP is re-named 3V3 after the current-limiting switch controlled by S1 and provides a pull-up reference
voltage for SCL, SDA, PGOOD, nPFO, nINT, nWAKEUP, GPIO1, GPO2, and GPIO3 pins of the TPS65218D0 device. It is also
an optional power supply for the CC (coin cell) pin.
(2)
Resistors R19-R26 on the BOOSTXL-TPS65218 board are not installed. As a result, this pin will not be electrically connected to
the MSP430F5529 unless a 0-
Ω resistor is added manually.
(3)
The net named 5VLP is re-named 5V after the current-limiting switch controlled by S1 and provides power to IN_BIAS directly.
5V also provides power to all IN_DCDCx pins, IN_LDO1, IN_LS2, IN_LS3, and IN_BU when shunts are installed on headers J5
and J6. It is also the voltage compared at PFI and the pull-up reference voltage for PWR_EN and AC_DET.
Table 1. Electrical Connections of Headers
BOOSTXL-TPS65218 Connecting Headers MSP430F5529 LaunchPad
Device Pin Net Name Pin Number Header Number Pin Number Header Pin Info Net and/or
Device Pin
Name
I/O Power
(1)
3V3LP 1 J1 1 +3V3 +3V3
45 nINT
(2)
3 J1 3 UART RX P3.4
40 nWAKEUP
(2)
4 J1 4 UART TX P3.3
19 PGOOD_BU
(2)
5 J1 5 GPIO(!) P1.6
8 PGOOD
(2)
6 J1 6 Analog In P6.6
10 nPFO
(2)
8 J1 8 GPIO(!) P2.7
3 SCL 9 J1 9 I2C SCL P4.2
2 SDA 10 J1 10 I2C SDA P4.1
PAD GND 20 J2 20 GND GND
Input Power
(3)
5VLP 21 J3 21 +5V +5V
PAD GND 22 J3 22 GND GND
11 GPIO1
(2)
26 J3 26 Analog In P6.3
26 GPIO3
(2)
38 J4 38 PWM Out P1.5
34 GPO2
(2)
37 J4 37 PWM Out P1.4
2.2 Test Points
Table 2 lists the test points located on the BOOSTXL-TPS65218. The test points are required to measure
the output voltage and sequence timing of the power rails generated by the TPS65218D0 device.
Table 2. BOOSTXL-TPS65218 Test Point List
PCB Reference Designator Net Name Type
TP1 PFI Comparator input
TP2, TP3, TP4 PGND, AGND, thermal pad Ground
TP5 LS1 Power output
TP6 LDO1 Power output
TP7 IN_LS1 Power input
TP8 LS2 Power output
TP9 LS3 Power output
TP10 PGOOD Data output
TP11 PGOOD_BU Data output
TP12 IN_LS2 Power input
TP13 IN_LS3 Power input
TP14 IN_nCC Ground
TP15 nPFO Data output
TP16 nINT Data output
TP17 nWAKEUP Data output