Difference between revisions of "Matrix - Power Dock for NanoPi NEO/zh"
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{| class="wikitable" | {| class="wikitable" | ||
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| − | | | + | | 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 | |
|} | |} | ||
Revision as of 08:42, 11 October 2016
1 介绍
- 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。
2 特性
- 输入电压范围：12V-24V
- 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
- 引脚说明:
- GPIO管脚定义
| 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
| 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 |
3 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。
4 硬件连接
4.1 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。
参考下图连接模块：
Matrix-Power Dock for NanoPi NEO_nanopi_NEO
