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參數(shù)資料
| 型號： | X3100V |
| 英文描述： | QFN,GREEN,IND TEMP,T&R(ARM) |
| 中文描述： | 電池管理 |
| 文件頁數(shù)： | 22/40頁 |
| 文件大小： | 249K |
| 代理商： | X3100V |
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X3100/X3101 – Preliminary Information
Characteristics subject to change without notice.
22 of 40
REV 1.1.8 12/10/02
www.xicor.com
can be executed only after times t
PUR
(power up to read
time) and t
PUW
(power up to write time) respectively.
IDLock is a programmable locking mechanism which
allows the user to lock data in different portions of the
EEPROM memory space, ranging from as little as one
page to as much as 1/2 of the total array. This is useful
for storing information such as battery pack serial
number, manufacturing codes, battery cell chemistry
data, or cell characteristics.
EEPROM Write Enable Latch
The X3100 and X3101 contain an EEPROM “Write
Enable” latch. This latch must be SET before a write to
EEPROM operation is initiated. The WREN instruction
will set the latch and the WRDI instruction will reset the
latch (Figure 11). This latch is automatically reset upon a
power-up condition and after the completion of a byte or
page write cycle.
IDLock Memory
Xicor’s IDLock memory provides a flexible mechanism to
store and lock battery cell/pack information. There are
seven distinct IDLock memory areas within the array
which vary in size from one page to as much as half of
the entire array.
Prior to any attempt to perform an IDLock operation, the
WREN instruction must first be issued. This instruction
sets the “Write Enable” latch and allows the part to
respond to an IDLock sequence. The EEPROM memory
may then be IDLocked by writing the
SET IDL
instruction
(Table 30 and Figure 19), followed by the IDLock
protection byte.
Table 28. IDLock Partition Byte Definition
The IDLock protection byte contains the IDLock bits
IDL2-IDL0, which defines the particular partition to be
locked (Table 28). The rest of the bits [7:3] are unused
and must be written as zeroes. Bringing CS HIGH after
the two byte IDLock instruction initiates a nonvolatile write
to the status register. Writing more than one byte to the
status register will overwrite the previously written
IDLock byte.
Once an IDLock instruction has been completed, that
IDLock setup is held in a nonvolatile IDLock Register
(Table 29) until the next IDLock instruction is issued. The
sections of the memory array that are IDLocked can be
read but not written until IDLock is removed or changed.
Table 29. IDLock Register
X3100/X3101 SPI SERIAL COMMUNICATION
The X3100 and X3101 are designed to interface directly
with the synchronous Serial Peripheral Interface (SPI) of
many popular microcontroller families. This interface
uses four signals, CS, SCK, SI and SO. The signal CS
when low, enables communications with the device. The
SI pin carries the input signal and SO provides the
output signal. SCK clocks data in or out. The X3100 and
X3101 operate in SPI mode 0 which requires SCK to be
normally low when not transferring data. It also specifies
that the rising edge of SCK clocks data into the device,
while the falling edge of SCK clocks data out.
This SPI port is used to set the various internal registers,
write to the EEPROM array, and select various device
functions.
The X3100 and X3101 contain an 8-bit instruction
register. It is accessed by clocking data into the SI input.
CS must be LOW during the entire operation. Table 30
contains a list of the instructions and their opcodes. All
instructions, addresses and data are transferred MSB
first.
Data input is sampled on the first rising edge of SCK
after CS goes LOW. SCK is static, allowing the user to
stop the clock, and then start it again to resume
operations where left off.
IDLock Protection
Bytes
0000 0000
0000 0001
0000 0010
0000 0011
0000 0100
0000 0101
0000 0110
0000 0111
EEPROM Memory Address
IDLocked
None
000h–07Fh
080h–0FFh
100h–17Fh
180h–1FFh
000h–0FFh
000h–00Fh
1F0h–1FFh
7
0
6
0
5
0
4
0
3
0
2
1
0
IDL2
IDL1
IDL0
Note:
Bits [7:3] specified to be “0’s”
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| X3100V28 | 功能描述:IC PROTECT/MONITOR 4CELL 28TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標準包裝:1 系列:- 功能:充電管理 電池化學:鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT |
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| X3100V28Z | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:3 or 4 Cell Li-ion Battery Protection and Monitor IC |
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