参数资料
| 型号： | ATAVRBC100 |
| 厂商： | Atmel |
| 文件页数： | 6/12页 |
| 文件大小： | 0K |
| 描述： | REF DESIGN KIT BATTERY CHARGER |
| 产品培训模块： | MCU Product Line Introduction tinyAVR Introduction |
| 标准包装： | 1 |
| 系列： | AVR® |
| 主要目的： | 电源管理，电池充电器 |
| 嵌入式： | 是，MCU，8 位 |
| 已用 IC / 零件： | ATtiny261/461/861/25/45/85 |
| 主要属性： | 多化学，3 个电路，（2）1A/2.5A 时为 1.2 ~ 20V 输出，（1）5A 时为 1.2 ~ 38V |
| 次要属性： | 7.5 ~ 40V 输入，2 个继电器，支持可选 DB101 显示板 |
| 已供物品： | 板 |
| 产品目录页面： | 615 (CN2011-ZH PDF) |
| 相关产品： | ATTINY461-15MAZTR-ND - MCU AVR 4KB FLASH 15MHZ 20-QFN ATTINY861-15XZTR-ND - MCU AVR 8K FLASH 15MHZ 20-TSSOP ATTINY861-15SZTR-ND - MCU AVR 8K FLASH 15MHZ 20-SOIC ATTINY861-15MZTR-ND - MCU AVR 8K FLASH 15MHZ 32-QFN ATTINY85V-15STTR-ND - MCU AVR 8K FLASH 15MHZ 8-SOIC ATTINY85V-15MTTR-ND - MCU AVR 8K FLASH 15MHZ 20-QFN ATTINY85-15SZTR-ND - MCU AVR 8K FLASH 15MHZ 8-SOIC ATTINY85-15ST1TR-ND - MCU AVR 8K FLASH 15MHZ 8-SOIC ATTINY85-15STTR-ND - MCU AVR 8K FLASH 15MHZ 8-SOIC ATTINY85-15MZTR-ND - MCU AVR 8K FLASH 15MHZ 20-QFN 更多... |
Always keep the temperature of the FETs (Q404 and Q405) and the resistors (R444
and R445) below a reasonable temperature (very warm is ok, untouchable is bad).
The equations below can be used to determine the maximum currents for the load
resistors and FET transistors – still, keep well below these values.
Equation 3-1. Maximum current in the resistor in the electronic load.
I res, max =
2 W
100 m ?
= 4 . 47 A
Equation 3-2. Maximum current in the FET transistor in the electronic load.
I FET, max =
1 5W
V supply ? V res
3.4 Supply voltages and ground levels
The board operates with three supply voltages (V3P3, V6P0 and V3P3A) and two
grounds (PGND and GND).
The VP3P3 (3.5V) and VP6P0 (6.3V) are the supply voltage for the ATmega644 and
other miscellaneous parts of the design, such as the electronic load, that are used to
support the development of an application.
The V3P3A (3.3V) is an adjustable mixed analog and digital supply voltage for the
ATtiny devices – this is used for the core part of the battery-charger. The mega644
can adjust this voltage, if desired. The PWM from OC2B set the adjustment and the
output Q3 on the port expanded U202 enables the adjustment.
PGND is used as ground reference for all power electronics (buck converter,
electronic load and so on), while GND is used as ground reference for other noise
sensitive analog circuits and low-current part of the circuits such as the
microcontrollers. The PGND and GND are connected at two points, the R142 and the
R143, which are both 0 ohm resistors.
3.5 ADC reference
To achieve sufficiently high accuracy on the current measurements a 2.500V (0.1%)
external reference is used. The reference is a high-accuracy zener diode, buffered by
operational amplifiers.
If it is desired to use the AVR’s internal voltage reference rather than the external one
the external voltage reference can be disconnected by removing the resistor R141.
4 Connectors and jumpers
The connectors and jumpers on the BC100 are described in the sections below.
4.1 Power connector
The BC100 can be connected to a DC power supply (9V-40V) through either the 4mm
banana connectors, or through the power jack (negative center). Please refer to
6
AVR451
8088A-AVR-09/07
相关PDF资料 |
PDF描述 |
|---|---|
| ATAVRDB101 | MODULE DISPLAY LCD/RGB BACKLIGHT |
| ATAVRMC100 | KIT EVALUATION FOR AT90PWM3 |
| ATAVRMC200 | KIT EVAL FOR AT90PWM3 ASYNC |
| ATAVRMC300 | BOARD EVAL LV MOTOR CONTROL PWR |
| ATAVRMC303 | BOARD EVAL MOTOR CTRL W/XMEGA |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ATAVRBFLY | 功能描述:开发板和工具包 - AVR Evaluation tool w/preloaded firmware RoHS:否 制造商:Arduino 产品:Evaluation Boards 工具用于评估:ATMega32U4 核心:AVR 接口类型:I2C, UART, USB 工作电源电压:6 V to 20 V |
| ATAVRBLE-IOT | 功能描述:SECURE AVR BLE IOT 制造商:microchip technology 系列:* 零件状态:在售 标准包装:1 |
| ATAVRCABLEKIT | 功能描述:电缆组件 AVR tools cable kit (USB+ribbon cables) RoHS:否 制造商:Molex 产品:Power Assemblies 类型:Cable Assembly 连接器端口 A:No Connector 连接器端口 A 管脚计数:4 连接器端口 B:No Connector 连接器端口 B 管脚计数: 型式:Male 线规 - 美国线规（AWG）:20, 28 长度:0.305 m 颜色:Black, Red |
| ATAVRDB101 | 功能描述:处理器配件 Display module RoHS:否 制造商:Olimex Ltd. 产品:Cable 用于: |
| ATAVRDISPLAYX | 功能描述:开发板和工具包 - AVR XMEGA Display Evaluation Kit RoHS:否 制造商:Arduino 产品:Evaluation Boards 工具用于评估:ATMega32U4 核心:AVR 接口类型:I2C, UART, USB 工作电源电压:6 V to 20 V |
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