參數(shù)資料
型號(hào)： DS2720BU
英文描述： Efficient, Addressable Single-Cell Rechargeable Lithium Protection IC
中文描述： 高效，尋址單節(jié)可充電鋰電池保護(hù)IC
文件頁(yè)數(shù)： 6/21頁(yè)
文件大?。?/td> 252K
代理商： DS2720BU
DS2720
6 of 21
Overvoltage.
If the cell voltage sensed at V
DD
exceeds overvoltage threshold V
OV
for a period longer
than overvoltage delay t
OVD
, the DS2720 shuts off the external charge FET and sets the OV flag in the
protection register. Discharging remains enabled during overvoltage. The charge FET is re-enabled
(unless another protection condition prevents it), when the cell voltage falls below charge enable
threshold V
CE
, or a discharge causes V
DD
- V
PLS
> V
OC
.
Undervoltage.
If the cell voltage sensed at V
DD
drops below undervoltage threshold V
UV
for a period
longer than undervoltage delay t
UVD
, the DS2720 shuts off the charge and discharge FETs, sets the UV
flag in the protection register, and enters sleep mode. The DS2720 turns on both the charge and discharge
FETs after the cell voltage rises above V
UV
and a charger is present.
Short Circuit.
If the cell voltage sensed at V
DD
drops below depletion threshold V
SC
for a period of t
SCD
,
the DS2720 shuts off the charge and discharge FETs and sets the DOC flag in the protection register. The
current path through the charge and discharge FETs is not re-established until the voltage on PLS rises
above V
DD
- V
OC
. The DS2720 provides a test current through internal resistor R
TST
from V
DD
to PLS to
pull up PLS when V
DD
rises above V
SC
. The test current allows the DS2720 to detect the removal of the
offending low-impedance load. Additionally, a recovery charge path through R
TST
from PLS to V
DD
is
enabled.
Overcurrent.
If the voltage across the protection FETs (V
DD
- V
PLS
) is greater than V
OC
for a period
longer than t
OCD
, the DS2720 shuts off the external charge and discharge FETs and sets the DOC flag in
the protection register. The current path is not re-established until the voltage on PLS rises above V
DD
-
V
OC
. The DS2720 provides a test current through internal resistor R
TST
from V
DD
to PLS to detect the
removal of the offending low-impedance load.
Overtemperature.
If the device temperature exceeds T
MAX
, the DS2720 immediately shuts off the
external discharge and charge FETs. The FETs are not turned back on until the cell temperature drops
below T
MAX
AND the host resets the OT bit.
相關(guān)PDF資料
PDF描述
DS2720CU Efficient, Addressable Single-Cell Rechargeable Lithium Protection IC
DS2722-F-03 900MHz Low-IF 1.5Mbps FSK Transceiver Final Datasheet
DS2722-F-04 900MHz Low-IF 1.5Mbps FSK Transceiver Final Datasheet
DS2722-F-05 900MHz Low-IF 1.5Mbps FSK Transceiver Final Datasheet
DS2740 High-Precision Coulomb Counter
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2720BU/T&R 制造商:Maxim Integrated Products 功能描述:SGL CL LI-LON PROT VOV-4.35 USOP TR - Tape and Reel
DS2720BU+ 功能描述:IC LITH BATTERY PROTECT 8-USOP RoHS:是 類(lèi)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(lèi)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(yè)面:669 (CN2011-ZH PDF) 其它名稱(chēng):MCP73831T-2ACI/OTCT
DS2720BU+T&R 制造商:Maxim Integrated Products 功能描述:PROT LI-ION 4.35V 8USOP - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC LITH BATTERY PROTECT 8-USOP
DS2720BU+T&R 功能描述:IC LITH BATTERY PROTECT 8-USOP RoHS:是 類(lèi)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(lèi)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(yè)面:669 (CN2011-ZH PDF) 其它名稱(chēng):MCP73831T-2ACI/OTCT
DS2720CU 制造商:Maxim Integrated Products 功能描述:SINGLE CELL LI-ION PROT IC VOV=4.30 - Rail/Tube
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