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參數(shù)資料
| 型號： | ISL6295 |
| 廠商： | Intersil Corporation |
| 英文描述： | Dual Positive-Edge-Triggered D-Type Flip-Flops With Clear and Preset 14-TSSOP -40 to 85 |
| 中文描述： | 低電壓電量計(jì) |
| 文件頁數(shù)： | 5/25頁 |
| 文件大?。?/td> | 387K |
| 代理商： | ISL6295 |
5
FN9074.0
October 25, 2005
Internal Voltage Regulator
The ISL6295 incorporates an internal voltage regulator that
supports 1-cell series lithium pack configurations. The
internal regulator draws power directly from the VP input. No
other external components are required to regulate circuit
voltage.
Precision Time Base
The integrated precision time base is a highly accurate RC
oscillator that provides precise timing for the sigma-delta A/D
and for the on-chip elapsed time counters without the need
for an external crystal. This time base is trimmed during
manufacturing to a nominal frequency of 131.072kHz.
Temperature Sensor
An integrated temperature sensor is provided that can
eliminate the need for an external thermistor. As an option, a
connection is provided for an external thermistor for
applications where the battery pack is physically located at a
distance from the ISL6295.
EEPROM
256 bytes of EEPROM memory is incorporated for storage
of non-volatile parameters such as cell models for use with
Intersil’s host driver firmware. An an initialization block with
values that are loaded into ISL6295 registers following a
power on condition. Included in this block is 16 bytes for
battery ID information.
RAM
32 bytes of general purpose RAM memory are provided for
storage of temporary parameters.
A/D Converter
The ISL6295 incorporates an integrating sigma-delta A/D
converter together with an analog MUX that has inputs for
charge and discharge currents, pack voltage, GPAD voltage,
the on-chip temperature sensor, and an off-chip thermistor.
The converter can be programmed to perform a conversion
with magnitude resolution of 8- to 15-bits while using either a
single 170mV or 340mV reference.
32-Bit Accumulator/Timers
The ISL6295 incorporates four 32-bit accumulators and four
32-bit elapsed time counters. The Discharge Current
Accumulator (DCA) and the Charge Current Accumulator
(CCA) are intended to record discharge and charge capacity
values. The Discharge Time Counter (DTC) and the Charge
Time Counter (CTC) are intended to maintain the total
discharge time and charge time. Accumulated charge and
discharge values can be used to determine state of charge
of the battery as well as cycle count information. With
information provided by the elapsed time counters, average
charge and discharge currents over an extended period of
time can be calculated.
SMBus/I
2
C
Communications Interface
This communications port for the ISL6295 is a 2-wire
industry-standard SMBus/I
2
C interface. All commands,
status, and data is read or written from the host system via
this interface.
A/D and Accumulator/Timer Operation
A/D CONVERSION CYCLE
When the A/D converter is enabled and active, it repeatedly
performs a cycle of 1 to 8 conversions as programmed by
FIGURE 2. BLOCK DIAGRAM
256
EEPROM
32-BIT
ACCUMULATORS/
TIMERS
VOLTAGE
REFERENCE AND
TEMP SENSOR
VOLTAGE
REGULATOR
COMM
INTERFACE
REGISTERS
16-BIT
SIGMA-DELTA
INTEGRATING
A/D CONVERTER
ANALOG
INPUT MUX
RUN
OSCILLATOR
VP
SR
ROSC
GND
DIGITAL SECTION
ANALOG SECTION
CONTROL
AND
STATUS
SCL
SDA
SLEEP
OSCILLATOR
GPAD/IO1
NTC/IO0
ISL6295
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| ISL6295CV | 功能描述:IC FUEL GAUGE LOW VOLTAGE 8TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):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 |
| ISL6295CV-T | 功能描述:IC FUEL GAUGE LOW VOLT 8-TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):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 |
| ISL6295CVZ | 功能描述:IC FUEL GAUGE LOW VOLTAGE8-TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:Impedance Track™ 功能:燃料，電量檢測計(jì)/監(jiān)控器 電池化學(xué):鋰離子（Li-Ion） 電源電壓:2.4 V ~ 2.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:20-TSSOP 包裝:帶卷 (TR) 產(chǎn)品目錄頁面:1020 (CN2011-ZH PDF) 配用:BQ27350EVM-ND - BQ27350EVM 其它名稱:296-21665-2 |
| ISL6295CVZ-T | 功能描述:IC FUEL GAUGE LOW VOLTAGE8-TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):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 |
| ISL6295EVAL1 | 制造商:Intersil Corporation 功能描述:LOW VOLT FUEL GAUGE - Bulk |
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