NXP Semiconductors PCA9420UK-EVM, Руководство пользователя, Страница: 8 / 26

NXP Semiconductors
UM11216
PCA9420UK-EVM evaluation board user manual
UM11216 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2020. All rights reserved.
User manual Rev. 1.2 — 11 March 2020
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6 Board description
Figure 2 describes the main elements on the board.
Figure 2. PCA9420UK-EVM board description
Table 1. Board description
Number Name Description
1 USB Input USB power supply for the PCA9420UK
2
Logic pin for
MODESEL1&2
Logic high or low for MODESEL1&2 pins
3 VBAT-TS TS selection pin for either 10k or 100k
4 System Node Electronic load for system
5 U1 PCA9420UK PMIC
6 VBAT_BKUP Coil cell battery for back-up purpose
7 VBAT Connect a Li-ion battery cell
8 SW2_OUT BUCK2 output
9 SW1_OUT BUCK1 output
10 LDO2_OUT LDO2 output
11 LDO1_OUT LDO1 output
12 INT-PU
Interrupt pull-up to either LDO2 output or an external
LDO output