ATAVRSB200 Atmel, ATAVRSB200 Datasheet

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ATAVRSB200

Manufacturer Part Number
ATAVRSB200
Description
KIT EVAL FOR AVR SMART BATTERY
Manufacturer
Atmel
Series
AVR®r
Datasheet

Specifications of ATAVRSB200

Main Purpose
Power Management, Battery Charger
Embedded
Yes, MCU, 8-Bit
Utilized Ic / Part
ATmega16HVA
Primary Attributes
1 ~ 4 Cells- Li-Ion, 8.4V, 880mA
Secondary Attributes
Graphical User Interface
Data Bus Width
8 bit
Interface Type
TWI, UART
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
• Full evaluation of Atmel smart battery reference design.
• Socket for SB20x smart battery reference designs.
• Communication gateway between PC and smart battery.
• Battery Charger.
• Adjustable Constant Current Load for battery discharging.
1 Introduction
The SB200 is a development platform for SB20x smart battery reference designs,
which offers an easy way to start evaluation and hence development of smart
battery applications using Atmel
a reference design, but is intended to be used with e.g. SB201-1, which is a
reference design that demonstrates implementation of a single cell smart battery
(Li-Ion).
16340/CR123A battery cells can be inserted in the SB200 battery sockets, and a
SB20x is inserted in the dedicated daughter board socket. This forms a “battery
pack” with a given number of cells, safety protection and full battery capacity
monitoring capabilities. Alternately other cell types can be soldered into the SB200.
To simulate the use of the “battery pack” the SB200 features a Charger that can
charge the battery pack, and a Constant Current Load that can simulate an
application that draws power from the battery pack.
Figure 1-1. SB200 with two batteries and SB201-2 inserted.
- Development platform for AVR based smart batteries.
- Single Wire UART for single and dual cell batteries.
- TWI/ SMBus
- Charge with up to 19V and 2A.
- Auto-limitation of charging voltage and current.
- Auto-termination of charging when charging period expires.
- Sink up to 4A continuous current.
- Auto-shut down if too hot.
AVR459: SB200 Hardware User's Guide
TM
interface for larger batteries.
®
AVR
®
microcontrollers. The SB200 is not in itself
8-bit
Microcontrollers
Application Note
Rev. 8132A-AVR-10/08

Related parts for ATAVRSB200

ATAVRSB200 Summary of contents

Page 1

... AVR459: SB200 Hardware User's Guide Features • Full evaluation of Atmel smart battery reference design. • Socket for SB20x smart battery reference designs. - Development platform for AVR based smart batteries. • Communication gateway between PC and smart battery. - Single Wire UART for single and dual cell batteries. ...

Page 2

... SB200”. Both the executable and the source code for the PC software are available from the Atmel web-site, and can be installed into AVR Studio. An overview of the hardware is seen in Figure 3-1 hot ...

Page 3

... Bill of Materials and CAD (gerber) files are available as separate files, which can be downloaded from the Atmel web site http://www.atmel.com/sb200. The source code for the SB200 firmware is available from the Atmel web site as well, but is provided as is. No support is provided on this part of the code made as a development tool for smart battery application only ...

Page 4

Insertion of battery cells and placement of the corresponding jumper 6 Supply voltage 7 Charger 7.1 How it works AVR459 4 Insert only the number of battery cells that are intended to be used with the SB20x in the ...

Page 5

Resolution 7.3 Communication 8 Constant Current Load 8132A-AVR-10/08 When setting maximum current and voltage, the charging time in minutes is also set. This can 255 minutes and the Charger will stop when the time is reached. ...

Page 6

Short circuit load condition 9 Test and connection points 9.1 External connection 9.2 External battery cells 9.3 Signal line test points AVR459 6 therefore be used to test and characterize battery cells and application. The load can be calibrated ...

Page 7

... ATtiny861 that controls the Charger is possible, and may be required to use the latest version of the firmware recommended to always upgrade to the latest version of the firmware, found on www.atmel.com, to ensure that the firmware match this documentation and operates accordingly. The firmware source code running in these ...

Page 8

Buttons 12 Status LED AVR459 8 development platform, not part of a reference design. Therefore the source code for these devices are provided as is, and with limited support. The product supported fully is the source code for the ...

Page 9

... A DB101 can be placed on the female pin header. This is an alternative to using host. The DB101 would typically only be used for demonstration, where standalone battery powered operation is desired. Atmel does not provide firmware for this. Though the capacity of the cells is specified to 880mAh they are actually closer to 700mAh ...

Page 10

Source and destination ADDRESS. 14.2 Global COMMAND 14.3 COMMAND to Constant Current Load. AVR459 10 • Fixed character as preamble to indicate start of package • Destination address byte • Source address byte • Command byte • Size byte ...

Page 11

COMMAND to/from Charger. 14.4.1 SetCharger. SetCharger: i.e. 8400mV, 450mA, 10 minutes SYNC ADDRESS SENDER 0x55 0x43 0x50 14.4.2 ChargingInfo. ChargingInfo: i.e. 0000mV, 100mA, 1 minute SYNC ADDRESS SENDER 0x55 0x50 0x43 14.4.3 ChargerRead. ...

Page 12

Read the SB20x Hardware ID 14.5.3 Set the Battery Select LED. AVR459 12 Leds_set_val(): i.e. SET RED Led on. SYNC ADDRESS SENDER COMMAND 0x55 0x4D 0x50 0x46 Where the bits in DATA that enabled the ...

Page 13

Read the SB200 PCB Temperature. 14.6 Communication protocol between the USB1287 gateway and SB201/SB204. 14.6.1 Read commands 8132A-AVR-10/08 The NTC placed close to the Constant Current Load can be read. Response is a temperature between -40°C to 125°C. Read_Temperature ...

Page 14

Write command Figure 14-2 A read word command Figure 14-3 A write word command Figure 14-4 A read block command Figure 14-5 A write block command AVR459 14 On write commands, the host can start to send data to ...

Page 15

Errors 8132A-AVR-10/08 At 4800 baud, there is only 208 clock cycles for SB201 between each bit. This means that to ensure error free communication all the time, all other interrupts would have to be less than 104 cycles, including ...

Page 16

... FCC (except as may be otherwise noted on the board/kit). Atmel supplied this board/kit “AS IS,” without any warranties, with all faults, at the buyer’s and further users’ sole risk ...

Page 17

... BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Atmel makes no representations or warranties with respect to the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. Atmel does not make any commitment to update the information contained herein. Unless specifically provided otherwise, Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel’ ...

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