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[[Matrix - Power Dock for NanoPi NEO|English]]

==介绍==
[[File:Power Dock for NanoPi NEO .png|thumb|Power Dock for NanoPi NEO]]
*Matrix-Power Dock for NanoPi NEO是一个高效的电源转换模块，能为用电设备提供稳定、可靠的供电。
*模块使用TI公司的TPS54331电源转换芯片，输入电压范围宽，带载能力强，输出电流大。使用了低内阻、大电流屏蔽电感，提高转换效率，降低发热量。
*模块自身的缓慢启动功能能有效限制浪涌电流，输入欠压保护和输出过压保护功能能有效保护用电设备不被损坏。
*模块A侧使用了双层加高的排母，NEO可直接倒扣在A侧，B侧扩展了NEO的排针接口，方便外接其他模块。

==特性==
* 输入电压：12V
* 输出电压：5V/2A。
* 开关频率：570KHz
* 静态电流：1uA 
* 输入欠压保护
* 输出过压保护
* 缓启动
* 负载调整率：±1%
* 电压调整率：±0.5%
* PCB尺寸（mm）：40x88
[[File:Power Dock for NanoPi NEO.png | frameless|800px|Power Dock for NanoPi NEO_PCB]]

* 引脚说明:
* '''GPIO管脚定义'''
{| class="wikitable"
|-
|Pin# || Name || Linux gpio ||Pin#  || Name || Linux gpio       
|-
|1    || SYS_3.3V   ||     ||2     || VDD_5V ||
|-
|3    || I2C0_SDA   ||     ||4     || VDD_5V ||
|- 
|5    || I2C0_SCL   ||     ||6     || GND    ||
|-
|7    || GPIOG11    || 203 ||8     || UART1_TX/GPIOG6 || 198
|-
|9    || GND        ||     ||10    || UART1_RX/GPIOG7 || 199  
|-
|11   || UART2_TX/GPIOA0  || 0      ||12    || PWM1/GPIOA6 || 6
|-
|13   || UART2_RTS/GPIOA2 || 2      ||14    || GND || 
|-
|15   || UART2_CTS/GPIOA3 || 3      ||16    || UART1_RTS/GPIOG8 || 200
|-
|17   || SYS_3.3V         ||        ||18    || UART1_CTS/GPIOG9 || 201
|-
|19   || SPI0_MOSI/GPIOC0 || 64     ||20    || GND              ||
|-
|21   || SPI0_MISO/GPIOC1 || 65     ||22    || UART2_RX/GPIOA1  || 1
|-
|23   || SPI0_CLK/GPIOC2 || 93     ||24    || SPI0_CS/GPIOC3   || 67
|}

* '''USB/Audio/IR 定义'''
{| class="wikitable"
|-
|  style="background: PaleTurquoise; color: black" colspan="3"| '''NanoPi-NEO V1.1'''
|-
|Pin# || Name     ||    Description     
|-
|1    || VDD_5V   ||    5V Power Out
|-
|2    || USB-DP1  ||    USB1 DP Signal
|- 
|3    || USB-DM1  ||    USB1 DM Signal
|-
|4    || USB-DP2  ||    USB2 DP Signal
|-
|5    || USB-DM2  ||    USB2 DM Signal
|-
|6     || GPIOL11/IR-RX  || GPIOL11 or IR Receive
|-
|7     || SPDIF-OUT/GPIOA17  || GPIOA17 or SPDIF-OUT
|-
|8  || PCM0_SYNC/I2S0_LRC   || I2S/PCM Sample Rate Clock/Sync
|-
|9  || PCM0_CLK/I2S0_BCK   || I2S/PCM Sample Rate Clock
|-
|10  || PCM0_DOUT/I2S0_SDOUT || I2S/PCM Serial Bata Output
|-
|11  || PCM0_DIN/I2S0_SDIN || I2S/PCM Serial Data Input
|-
|12    || GND       || 0V
|}

==工作原理==
*Matrix-Power Dock for NanoPi NEO模块使用TI公司的TPS54331降压转换芯片，使用Buck 拓扑结构，芯片内部集成了一个低Rds的上桥MOSFET，能有效提高转换效率。
==硬件连接==

===连接NanoPi NEO===
输入电压通过电源输入端子接入模块，NEO板倒扣（网口朝下）在Power Dock for NanoPi NEO的A侧，B侧扩展了NEO的排针接口，方便外接其他模块。<br>

参考下图连接模块：<br>
[[File:Matrix-Power Dock for NanoPi NEO_nanopi_NEO.jpg|frameless|600px|Matrix-Power Dock for NanoPi NEO_nanopi_NEO]]



==相关资料==