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ISL6295CV-T Datasheet

  • ISL6295CV-T

  • Low Voltage Fuel Gauge

  • 25頁

  • INTERSIL   INTERSIL

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ISL6295
Data Sheet
October 25, 2005
FN9074.0
Low Voltage Fuel Gauge
The ISL6295 is a cost-effective, highly accurate IC that
measures, stores, and reports all of the critical parameters
required for rechargeable battery monitoring with a minimum
of external components. It precisely measures charge/
discharge current as well as voltage and temperature of a
battery pack. In addition, the ISL6295 accurately
accumulates both charge and discharge current as
independent parameters. Temperature history can also be
maintained for calculating self-discharge effects.
The ISL6295 integrates a highly accurate 16-bit (15-bit plus
sign) integrating A/D converter that performs calibrated
current measurement to within 鹵0.5% error. On-chip
counters precisely track battery charge/discharge and
temperature history. Also included are an on-chip voltage
regulation circuit, non-crystal time base, and on-chip
temperature sensor. The operating voltage range of the
ISL6295 is optimized to allow a direct interface to a single
cell Li-Ion/Li-Poly pack. 256 bytes of general-purpose
nonvolatile EEPROM storage are provided to store factory
programmed, measured, and user defined parameters.
Efficient communication is provided through an industry
standard SMBus/I
2
C鈩?compatible 2-wire communications
interface. This interface allows the host to determine
accurate battery status for effective system power
management and for communication to the end user. A
battery management solution utilizing the ISL6295 delivers
both space and total system component cost savings for a
wide variety of battery operated applications.
Features
鈥?Measures, maintains, and reports all critical rechargeable
battery parameters with high accuracy
鈥?Supports Lithium Ion and Lithium Polymer battery packs
鈥?Current measurement with 16-bit (15-bit plus sign)
integrating A/D accurate to less than 鹵0.5% error
鈥?Calibrated temperature measurement accurate to within
鹵3擄C absolute using on-chip temp sensor or external
thermistor
鈥?Accumulation of charge current, discharge current,
temperature, and voltage in independent 32-bit registers
鈥?256-byte nonvolatile EEPROM stores factory
programmed, measured, and user-defined parameters
鈥?In-system offset calibration compensates for offset error in
current measurement
鈥?Industry standard SMBus/I
2
C鈩?compatible 2-wire
communications interface
- SMBus V1.1 with PEC/CRC-8 communication
鈥?-20擄C to +85擄C operating temperature range
鈥?NTC pin can be configured as a thermistor input or GPIO
鈥?GPAD pin can be configured as an independent A/D input
or GPIO
鈥?Flexible power operating modes allow low-power
monitoring of battery conditions during system full
operating and standby conditions:
- Run: Continuous Conversion; 85碌A(chǔ) typ.
- Sample: Sample interval from 0.5-64s @ 45碌A(chǔ) typ.
- Sample-Sleep: Sample interval from 0.5-138s min. @
20碌A(chǔ) typ.
鈥?Shelf-Sleep mode reduces power consumption to pack
storage conditions to 300nA typ., with automatic wake-up
upon pack insertion.
Ordering Information
PART
NUMBER
ISL6295CV
PART
MARKING
6295CV
TEMP
RANGE (擄C)
-20擄C to 85
-20擄C to 85
PKG.
PACKAGE DWG. #
8 Ld TSSOP M8.173
8 Ld TSSOP M8.173
ISL6295CV-T 6295CV
Applications
鈥?Notebook PC, PDAs, Hand Held Devices
Pinout
ISL6295 (TSSOP)
TOP VIEW
GPAD/IO1
VP
SCL
SDA
1
2
3
4
8
7
6
5
SR
GND
NTC/IO0
ROSC
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
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.

ISL6295CV-T 產(chǎn)品屬性

  • 0現(xiàn)貨

  • 停產(chǎn)

  • -

  • 卷帶（TR）

  • 停產(chǎn)

  • 電池監(jiān)控器

  • 鋰離子/聚合物

  • 1

  • -

  • I2C

  • -20°C ~ 85°C（TA）

  • 表面貼裝型

  • 8-TSSOP（0.173"，4.40mm 寬）

  • 8-TSSOP

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