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参数资料
| 型号： | LTC4011CFE#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/26页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHARGER HIEFF 20TSSOP |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 镍镉（NiCd）、镍金属氢化物（NiMH） |
| 电源电压： | 4.5 V ~ 34 V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽）裸露焊盘 |
| 供应商设备封装： | 20-TSSOP-EP |
| 包装： | 带卷 (TR) |
LTC4011
High Efficiency Standalone
Nickel Battery Charger
Complete NiMH/NiCd Charger for 1 to 16 Cells
Integrated or Standalone Battery Charger
Portable Instruments or Consumer Products
FEATURES
n
n No Microcontroller or Firmware Required
n 550kHz Synchronous PWM Current Source Controller
n No Audible Noise with Ceramic Capacitors
n PowerPath? Control Support
n Programmable Charge Current: 5% Accuracy
n Wide Input Voltage Range: 4.5V to 34V
n Automatic Trickle Precharge
n –?V Fast Charge Termination
n Optional ?T/?t Fast Charge Termination
n Automatic NiMH Top-Off Charge
n Programmable Timer
n Automatic Recharge
n Multiple Status Outputs
n Micropower Shutdown
n 20-Lead Thermally Enhanced TSSOP Package
APPLICATIONS
n
n
n Battery-Powered Diagnostics and Control
n Back-Up Battery Management
L , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. PowerPath is a trademark of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
TYPICAL APPLICATION
DESCRIPTION
The LTC ? 4011 provides a complete, cost-effective nickel
battery fast charge solution in a small package using few
external components. A 550kHz PWM current source
controller and all necessary charge initiation, monitoring
and termination control circuitry are included.
The LTC4011 automatically senses the presence of a
DC adapter and battery insertion or removal. Heavily
discharged batteries are precharged with a trickle cur-
rent. The LTC4011 can simultaneously use both – ?V and
?T/?t fast charge termination techniques and can detect
various battery faults. If necessary, a top-off charge is
automatically applied to NiMH batteries after fast charg-
ing is completed. The IC will also resume charging if the
battery self-discharges after a full charge cycle.
All LTC4011 charging operations are qualified by actual
charge time and maximum average cell voltage. Charging
may also be gated by minimum and maximum temperature
limits. NiMH or NiCd fast charge termination parameters
are pin-selectable.
Integrated PowerPath control support ensures that the
system remains powered at all times without allowing load
transients to adversely affect charge termination.
FROM
ADAPTER
5V
2A NiMH Battery Charger
10μF
2A NiMH Charge Cycle at 1C
INFET
FAULT
CHRG
TOC
READY
4.7μH
10μF
0.1μF
0.033μF
0.068μF
4011fb
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4011EFE | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Efficiency Standalone Nickel Battery Charger |
| LTC4012 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Effi ciency, Multi-Chemistry Battery Charger with PowerPath Control |
| LTC4012-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Effi ciency, Multi-Chemistry Battery Charger with PowerPath Control |
| LTC4012-2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Effi ciency, Multi-Chemistry Battery Charger with PowerPath Control |
| LTC4012-3 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Efficiency, Multi-Chemistry Battery Charger with PowerPath Control |
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