參數(shù)資料
型號(hào)： LTC4064
廠商： Linear Technology Corporation
英文描述： Monolithic Linear Charger for Back-Up Li-Ion Batteries
中文描述： 單片線性充電器作為備份鋰離子電池
文件頁(yè)數(shù)： 1/16頁(yè)
文件大?。?/td> 174K
代理商： LTC4064
LTC4064
1
4064f
APPLICATIU
FEATURES
TYPICAL APPLICATIO
U
DESCRIPTIO
U
I
File Servers, RAID Systems
I
Storage Products
I
Li-Ion Battery Back-Up
I
Preset 4V Charge Voltage with 1% Accuracy
Prolongs 4.2V Li-Ion Battery Lifetime
I
Automatic Recharge
I
Thermal Regulation Maximizes Charging Rate
without Risk of Overheating*
I
No MOSFET, Sense Resistor or Blocking Diode
Required
I
Programmable Charge Termination Timer
I
Thermistor Input for Temperature Qualified Charging
I
Programmable Charge Current with 7% Accuracy
I
C/10 Charge Current Detection Output
I
25
μ
A Supply Current in Shutdown Mode
I
Charge Current Monitor Useful for Gas Gauging*
I
Charges Directly from USB Port
I
Tiny Thermally Enhanced 10-pin MSOP Package
Monolithic Linear Charger
for Back-Up Li-Ion Batteries
The LTC4064 is a standalone linear charger optimized for
prolonging the life of 1-cell Li-ion batteries in battery back-
up applications. By charging to a float voltage of 4V
instead of 4.2V or 4.1V, the LTC4064 decelerates the aging
process and capacity degradation when the battery is
unused for long periods of time but must be in a ready
state.
An external capacitor programs a safety timer to terminate
the charge cycle while the charge current is set externally
with a single resistor. When the input supply is removed,
the LTC4064 automatically enters a low current sleep
mode, dropping the battery drain current to less than 3
μ
A.
Additional safety features designed to maximize battery
lifetime and reliability include NTC temperature sensing
and low battery charge conditioning (trickle charging).
The IC contains an on-chip power MOSFET and eliminates
the need for an external sense resistor and blocking diode.
The LTC4064 also includes C/10 detection circuitry, AC
present logic, and fault detection circuitry.
, LTC and LT are registered trademarks of Linear Technology Corporation.
*US Patent No. 6522118
BAT
PROG
TIMER
NTC
GND
1.5k
1%
4.7
μ
F
0.1
μ
F
I
BAT
= 1A
4064TA01
SHDN
1-CELL
Li-Ion
BATTERY*
*AN OUTPUT CAPACITOR MAY BE REQUIRED
DEPENDING ON BATTERY LEAD LENGTH
V
CC
V
IN
= 5V
V
FLOAT
= 4V
8
2
9
7
5, 11
6
4
LTC4064
Standalone Back-Up Li-Ion Battery Charger
相關(guān)PDF資料
PDF描述
LTC4064EMSE Monolithic Linear Charger for Back-Up Li-Ion Batteries
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LTC487IN Quad Low Power RS485 Driver
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4064EMSE 功能描述:IC CHARGER BATT L-ION 4V 10-MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:61 系列:- 功能:電源管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:4.35 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:22-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤 包裝:管件
LTC4064EMSE#PBF 功能描述:IC CHARGER BATT L-ION 4V 10-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:61 系列:- 功能:電源管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:4.35 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:22-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤 包裝:管件
LTC4064EMSE#TR 功能描述:IC CHARGER BATT L-ION 4V 10-MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:61 系列:- 功能:電源管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:4.35 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:22-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤 包裝:管件
LTC4064EMSE#TRPBF 功能描述:IC CHARGER BATT L-ION 4V 10-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:61 系列:- 功能:電源管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:4.35 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:22-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤 包裝:管件
LTC4065 制造商:LINER 制造商全稱:Linear Technology 功能描述:Standalone 750mA Li-Ion Battery Charger in 2 】 2 DFN
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