Difference between revisions of "Power Dock for NanoPi NEO"

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[[Power Dock for NanoPi NEO/zh|查看中文]]
 
[[Power Dock for NanoPi NEO/zh|查看中文]]
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 +
==Introduction==
 +
[[File:Power Dock for NanoPi NEO .png|thumb|Power Dock for NanoPi NEO]]
 +
* The Power Dock for NanoPi NEO is a power conversion board.
 +
* It uses TI's TPS54331 device with wide voltage range.
 +
<!---with an integrated high-side n-channel
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MOSFET. To improve performance during line and load transients, the device implements a constant-frequency,
 +
current mode control which reduces output capacitance and simplifies external frequency compensation design.
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The TPS54331 device has a preset switching frequency of 570 kHz.
 +
, .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。--->
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* Its slow-start feature limits inrush currents. Its overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions.
 +
* Its side A has double-layer tall female connectors which allow a NEO to be stacked on the board. Its side B populates NEO's GPIO pins.
 +
 +
==Hardware Spec==
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* Input Voltage: 12V
 +
* Output: 5V/2A
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* Switching Frequency: 570KHz
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* Shutdown Quiescent Current: 1uA
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<!---* 输入欠压保护--->
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* Overvoltage Protection
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* Slow-Start
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<!---
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* 负载调整率：±1%
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* 电压调整率：±0.5%
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--->
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* PCB dimension(mm): 40 x 88
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[[File:Power Dock for NanoPi NEO.png | frameless|800px|Power Dock for NanoPi NEO_PCB]]
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 +
* Pin Description:
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* '''GPIO Pin Description'''
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{| class="wikitable"
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|-
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|Pin# || Name || Linux gpio ||Pin#  || Name || Linux gpio     
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|-
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|1    || SYS_3.3V  ||    ||2    || VDD_5V ||
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|-
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|3    || I2C0_SDA  ||    ||4    || VDD_5V ||
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|-
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|5    || I2C0_SCL  ||    ||6    || GND    ||
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|-
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|7    || GPIOG11    || 203 ||8    || UART1_TX/GPIOG6 || 198
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|-
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|9    || GND        ||    ||10    || UART1_RX/GPIOG7 || 199 
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|-
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|11  || UART2_TX/GPIOA0  || 0      ||12    || PWM1/GPIOA6 || 6
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|-
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|13  || UART2_RTS/GPIOA2 || 2      ||14    || GND ||
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|-
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|15  || UART2_CTS/GPIOA3 || 3      ||16    || UART1_RTS/GPIOG8 || 200
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|-
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|17  || SYS_3.3V        ||        ||18    || UART1_CTS/GPIOG9 || 201
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|-
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|19  || SPI0_MOSI/GPIOC0 || 64    ||20    || GND              ||
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|-
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|21  || SPI0_MISO/GPIOC1 || 65    ||22    || UART2_RX/GPIOA1  || 1
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|-
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|23  || SPI0_CLK/GPIOC2 || 93    ||24    || SPI0_CS/GPIOC3  || 67
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|}
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* '''USB/Audio/IR Pin Description'''
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{| class="wikitable"
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|-
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|  style="background: PaleTurquoise; color: black" colspan="3"| '''NanoPi-NEO V1.1'''
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|-
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|Pin# || Name    ||    Description   
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|-
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|1    || VDD_5V  ||    5V Power Out
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|-
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|2    || USB-DP1  ||    USB1 DP Signal
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|-
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|3    || USB-DM1  ||    USB1 DM Signal
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|-
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|4    || USB-DP2  ||    USB2 DP Signal
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|-
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|5    || USB-DM2  ||    USB2 DM Signal
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|-
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|6    || GPIOL11/IR-RX  || GPIOL11 or IR Receive
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|-
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|7    || SPDIF-OUT/GPIOA17  || GPIOA17 or SPDIF-OUT
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|-
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|8  || PCM0_SYNC/I2S0_LRC  || I2S/PCM Sample Rate Clock/Sync
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|-
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|9  || PCM0_CLK/I2S0_BCK  || I2S/PCM Sample Rate Clock
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|-
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|10  || PCM0_DOUT/I2S0_SDOUT || I2S/PCM Serial Bata Output
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|-
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|11  || PCM0_DIN/I2S0_SDIN || I2S/PCM Serial Data Input
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|-
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|12    || GND      || 0V
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|}
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==Device Operation==
 +
*The Power Dock for NanoPi NEO uses TI's TPS54331 device. The TPS54331 device is a 28-V, 3-A non-synchronous buck converter that integrates a low RDS(on) high-side MOSFET.
 +
 +
==Hardware Setup==
 +
===Connect Power Dock to NanoPi NEO===
 +
A NanoPi NEO can be stacked on the board at side A's female connector. Its side B populates NEO's GPIO pins.<br>
 +
 +
Hardware Setup<br>
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[[File:Power Dock for NanoPi NEO_nanopi_NEO.jpg|frameless|500px|Power Dock for NanoPi NEO_nanopi_NEO]]<br>
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Connect Power Dock to NanoPi BAT & Other Modules:<br>
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[[File:Power Dock for NanoPi NEO_nanopi_NEO0.jpg|frameless|400px|Power Dock for NanoPi BAT]]
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[[File:Power Dock for NanoPi NEO_nanopi_NEO1.jpg|frameless|400px|Power Dock for NanoPi NEO Hub]]
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[[File:Power Dock for NanoPi NEO_nanopi_NEO2.jpg|frameless|400px|Power Dock for NanoPi RTC]]
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[[File:Power Dock for NanoPi NEO_nanopi_NEO3.jpg|frameless|400px|Power Dock for NanoPi GPS]]
 +
 +
==Resources==

Revision as of 16:55, 18 April 2017

查看中文

1 Introduction

Power Dock for NanoPi NEO
  • The Power Dock for NanoPi NEO is a power conversion board.
  • It uses TI's TPS54331 device with wide voltage range.
  • Its slow-start feature limits inrush currents. Its overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions.
  • Its side A has double-layer tall female connectors which allow a NEO to be stacked on the board. Its side B populates NEO's GPIO pins.

2 Hardware Spec

  • Input Voltage: 12V
  • Output: 5V/2A
  • Switching Frequency: 570KHz
  • Shutdown Quiescent Current: 1uA
  • Overvoltage Protection
  • Slow-Start
  • PCB dimension(mm): 40 x 88

Power Dock for NanoPi NEO_PCB

  • Pin Description:
  • GPIO Pin Description
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 Pin Description
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 Device Operation

  • The Power Dock for NanoPi NEO uses TI's TPS54331 device. The TPS54331 device is a 28-V, 3-A non-synchronous buck converter that integrates a low RDS(on) high-side MOSFET.

4 Hardware Setup

4.1 Connect Power Dock to NanoPi NEO

A NanoPi NEO can be stacked on the board at side A's female connector. Its side B populates NEO's GPIO pins.

Hardware Setup
Power Dock for NanoPi NEO_nanopi_NEO
Connect Power Dock to NanoPi BAT & Other Modules:
Power Dock for NanoPi BAT Power Dock for NanoPi NEO Hub Power Dock for NanoPi RTC Power Dock for NanoPi GPS

5 Resources

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