參數(shù)資料
型號(hào)： LTC1760CFW
廠商： LINEAR TECHNOLOGY CORP
元件分類： 電源管理
英文描述： Dual Smart Battery System Manager
中文描述： 3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO48
封裝： 6.10 MM, PLASTIC, TSSOP-48
文件頁(yè)數(shù)： 28/44頁(yè)
文件大?。?/td> 379K
代理商： LTC1760CFW
LTC1760
28
sn1760 1760is
5 Battery Calibration (Conditioning)
Calibration allows the SMBus Host to fully discharge a
battery for conditioning purposes. The SMBus Host may
determine the battery to be discharged or allow the LTC1760
to choose based on the batteries’ request to be condi-
tioned.
5.1 Selecting a Battery to be Calibrated
Option 1) SMBus Host chooses battery to be calibrated
using BatterySystemStateCont(CALIBRATE_BAT[4:1])
Allowed values:
'b0001: Set CALIBRATE_BAT1. Only has an effect if
Battery 1 BatteryMode(CONDITION_FLAG) is high .
May not be updated if a calibration is in progress.
'b0010: Set CALIBRATE_BAT2. Only has an effect if
Battery 2 BatteryMode(CONDITION_FLAG) is high .
May not be updated if a calibration is in progress.
'b0000: Clears CALIBRATE_BAT1 and
CALIBRATE_BAT2 and allows LTC1760 to chose. Power
on reset default. May not be updated if a calibration is
in progress.
Option 2) SMBus Host allows LTC1760 to choose
battery to be calibrated.
BatterySystemStateCont(CALIBRATE_BAT[4:1])=`b0000.
See previous option.
The LTC1760 determines that the battery requires calibra-
tion by reading BatteryMode(CONDITION_FLAG). This
flag is cached in the LTC1760. The LTC1760 sets
BatterySystemStateCont(CALIBRATE_REQUEST) high.
The LTC1760 will always select the battery that is request-
ing calibration. If both batteries are requesting calibration,
the LTC1760 will select Battery 1. If neither battery is
requesting calibration, then calibration cannot occur.
5.2 Initiating Calibration of Selected Battery
The SMBus Host initiates a calibration by writing to
BatterySystemStateCont(CALIBRATE). Follow rules of the
previous section to preserve battery intended for calibra-
tion. The SMBus Host must only set the calibration bit
once per calibration.
OPERATIOU
The LTC1760 will discharge the selected battery as long as
the calibration is in progress (CALIBRATE high). Updates
to the cached BatteryMode(CONDITION_FLAG) will be
inhibited while CALIBRATE is asserted. This means that
discharge of the battery will continue even if the battery
clears the CONDITION_FLAG.
5.3 Terminating Calibration of Selected Battery
Calibration will end when CALIBRATE is cleared. CALI-
BRATE will be cleared when:
AC is removed.
The battery being calibrated is removed. When the
battery being calibrated is removed, the LTC1760
will automatically calibrate the other battery if it is
requesting calibration.
BatterySystemStateCont(POWER_NOT_GOOD) is
high.
The battery sets Alarm Warning
(TERMINATE_DISCHARGE) high.
The battery sets Alarm Warning
(FULLY_DISCHARGED) high.
A zero is written to the CALIBRATE bit.
The LTC1760 will attempt to initiate a charge cycle after the
discharge cycle is completed.
6 MODE Pin Operation
The MODE pin is a multifunction pin that allows the
LTC1760 to: 1) display charging status in stand alone
operation; 2) activate hardware charge inhibit and; 3)
charge when SCL and SDA are low; 4) charge with an
SMBus Host.
6.1 Stand Alone Charge Indication
When MODE is tied to GND and V
VDDS
< V
IL_VDDS
, the
function of SDA, SMBALERT, and SCL are changed as
described below.
SDA is an output and is used to monitor charging status of
Battery 2.
Allowed valued are:
Low: Battery 2 is charging.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC1760CFW#PBF 功能描述:IC MANAGER BATTERY DUAL 48TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 其它有關(guān)文件:STC3100 View All Specifications 特色產(chǎn)品:STC3100 - Battery Monitor IC 標(biāo)準(zhǔn)包裝:4,000 系列:- 功能:燃料，電量檢測(cè)計(jì)/監(jiān)控器 電池化學(xué):鋰離子（Li-Ion） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-MiniSO 包裝:帶卷 (TR) 其它名稱:497-10526-2
LTC1760CFW#PBF 制造商:Linear Technology 功能描述:Battery Management IC 制造商:Linear Technology 功能描述:IC, BATTERY CHARGER, 4.28A, TSSOP-48
LTC1760CFW#TR 功能描述:IC MANAGER BATTERY SYS 48-TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 功能:電池監(jiān)控器 電池化學(xué):堿性，鋰離子，鎳鎘，鎳金屬氫化物 電源電壓:1 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-6 包裝:帶卷 (TR)
LTC1760CFW#TRPBF 功能描述:IC MANAGER BATTERY DUAL 48TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 功能:電池監(jiān)控器 電池化學(xué):堿性，鋰離子，鎳鎘，鎳金屬氫化物 電源電壓:1 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-6 包裝:帶卷 (TR)
LTC1760CFWPBF 制造商:Linear Technology 功能描述:Dual Smart Battery Sys. Manager TSSOP48
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