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X3100V28 Datasheet

  • X3100V28

  • 3 or 4 Cell Li-Ion Battery Protection and Monitor IC

  • 40頁

  • INTERSIL   INTERSIL

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廬
X3100, X3101
4 cell/3 cell
Data Sheet
April 11, 2005
FN8110.0
PRELIMINARY
3 or 4 Cell Li-Ion Battery Protection and
Monitor IC
FEATURE
鈥?Software Selectable Protection Levels and
Variable Protect Detection/Release Times
鈥?Integrated FET Drive Circuitry
鈥?Cell Voltage and Current Monitoring
鈥?0.5% Accurate Voltage Regulator
鈥?Integrated 4kbit EEPROM
鈥?Flexible Power Management with 1碌A Sleep
Mode
鈥?Cell Balancing Control
BENEFIT
鈥?Optimize protection for chosen cells to allow
maximum use of pack capacity.
鈥?Reduce component count and cost
鈥?Simplify implementation of gas gauge
鈥?Accurate voltage and current measurements
鈥?Record battery history to optimize gas gauge,
track pack failures and monitor system use
鈥?Reduce power to extend battery life
鈥?Increase battery capacity and improve cycle life
battery life
DESCRIPTION
The X3100 is a protection and monitor IC for use in bat-
tery packs consisting of 4 series Lithium-Ion battery
cells. The X3101 is designed to work in 3 cell applica-
tions. Both devices provide internal over-charge, over-
discharge, and over-current protection circuitry, internal
EEPROM memory, an internal voltage regulator, and
internal drive circuitry for external FET devices that con-
trol cell charge, discharge, and cell voltage balancing.
Over-charge, over-discharge, and over-current thresh-
olds reside in an internal EEPROM memory register and
are selected independently via software using a 3MHz
SPI serial interface. Detection and time-out delays can
also be individually varied using external capacitors.
Using an internal analog multiplexer, the X3100 or
X3101 allow battery parameters such as cell voltage
and current (using a sense resistor) to be monitored
externally by a separate microcontroller with A/D con-
verter. Software on this microcontroller implements
gas gauge and cell balancing functionality in software.
The X3100 and X3101 contain a current sense ampli-
fier. Selectable gains of 10, 25, 80 and 160 allow an
external 10 bit A/D converter to achieve better resolu-
tion than a more expensive 14 bit converter.
An internal 4kbit EEPROM memory featuring
IDLock
鈩?/div>
, allows the designer to partition and 鈥渓ock in鈥?/div>
written battery cell/pack data.
The X3100 and X3101 are each housed in a 28 Pin
TSSOP package.
FUNCTIONAL DIAGRAM
VCC
RGP RGC RGO
UVP/OCP
OVP/LMON
AS0
AS1
AS2
AO
VCELL1
CB1
VCELL2
CB2
VCELL3
CB3
VCELL4/VSS
CB4
Over-charge
Over-discharge
Protection
Sense
Circuits
Protection
Sample Rate
Timer
5VDC
Regulator
Internal Voltage Regulator
Power-on reset &
Status Register
FET Control
Circuitry
Analog
MUX
4 kbit
EEPROM
Over-current
Protection &
Current Sense
Protection Circuit
Timing Control
& Configuration
OVT UVT OCT
Configuration
Register
Control
Register
S0
SPI
I/F
SCK
CS
SI
VSS
VCS1 VCS2
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-352-6832
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

X3100V28 產品屬性

  • 0現貨

  • 停產

  • -

  • 管件

  • 停產

  • 多功能控制器

  • 鋰離子

  • 4

  • 過流

  • SPI

  • -20°C ~ 70°C（TA）

  • 表面貼裝型

  • 28-TSSOP（0.173"，4.40mm 寬）

  • 28-TSSOP

X3100V28相關型號PDF文件下載

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