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参数资料
| 型号： | LTC4064EMSE#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC CHARGER BATT L-ION 4V 10-MSOP |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 4.25 V ~ 6.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 供应商设备封装： | 10-MSOP 裸露焊盘 |
| 包装： | 带卷 (TR) |
LTC4064
Monolithic Linear Charger
for Back-Up Li-Ion Batteries
FEATURES
DESCRIPTIO
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Preset 4V Charge Voltage with 1% Accuracy
Prolongs 4.2V Li-Ion Battery Lifetime
Automatic Recharge
Thermal Regulation Maximizes Charging Rate
without Risk of Overheating*
No MOSFET, Sense Resistor or Blocking Diode
Required
Programmable Charge Termination Timer
Thermistor Input for Temperature Qualified Charging
Programmable Charge Current with 7% Accuracy
C/10 Charge Current Detection Output
25 μ A Supply Current in Shutdown Mode
Charge Current Monitor Useful for Gas Gauging*
Charges Directly from USB Port
Tiny Thermally Enhanced 10-pin MSOP Package
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).
APPLICATIO S
The IC contains an on-chip power MOSFET and eliminates
the need for an external sense resistor and blocking diode.
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File Servers, RAID Systems
Storage Products
Li-Ion Battery Back-Up
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
TYPICAL APPLICATIO
Standalone Back-Up Li-Ion Battery Charger
V IN = 5V
8
2
4.7 μ F
4
SHDN V CC
BAT
LTC4064
TIMER PROG
GND
NTC
9
7
I BAT = 1A
V FLOAT = 4V
1-CELL
Li-Ion
1.5k
BATTERY*
0.1 μ F
5, 11
6
1%
4064TA01
*AN OUTPUT CAPACITOR MAY BE REQUIRED
DEPENDING ON BATTERY LEAD LENGTH
sn4064 4064fs
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4065 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Standalone 750mA Li-Ion Battery Charger in 2 】 2 DFN |
| LTC4065A | 制造商:LINER 制造商全称:Linear Technology 功能描述:Standalone 750mA Li-Ion Battery Charger in 2 】 2 DFN |
| LTC4065AEDC | 制造商:LINER 制造商全称:Linear Technology 功能描述:Standalone 750mA Li-Ion Battery Charger in 2 】 2 DFN |
| LTC4065AEDC#PBF | 制造商:Linear Technology 功能描述:Constant Current/Voltage Charger Li-Ion 500mA 4.2V 6-Pin DFN EP |
| LTC4065AEDC#TR | 功能描述:IC CHARGER BATT LI-ON 6-DFN RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
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