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参数资料
| 型号： | LTC4060EFE#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHARGR NIMH/NICD 16TSSOP |
| 标准包装： | 95 |
| 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 ~ 10 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 供应商设备封装： | 16-TSSOP-EP |
| 包装： | 管件 |
| 产品目录页面： | 1341 (CN2011-ZH PDF) |
LTC4060
Standalone Linear NiMH/NiCd
Fast Battery Charger
FEATURES
DESCRIPTIO
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Complete Fast Charger Controller for Single,
2-, 3- or 4-Series Cell NiMH/NiCd Batteries
No Firmware or Microcontroller Required
Termination by – ? V, Maximum Voltage or
Maximum Time
No Sense Resistor or Blocking Diode Required
Automatic Recharge Keeps Batteries Charged
Programmable Fast Charge Current: 0.4A to 2A
Accurate Charge Current: ± 5% at 2A
Fast Charge Current Programmable Beyond 2A with
External Sense Resistor
Automatic Detection of Battery
Precharge for Heavily Discharged Batteries
Optional Temperature Qualified Charging
Charge and AC Present Status Outputs Can Drive LED
Automatic Sleep Mode with Input Supply Removal
Negligible Battery Drain in Sleep Mode: <1 μ A
Manual Shutdown
Input Supply Range: 4.5V to 10V
Available in 16-Lead DFN and TSSOP Packages
The LTC ? 4060 is a complete fast charging system for NiMH
or NiCd batteries. Just a few external components are
needed to design a standalone linear charging system.
An external PNP transistor provides charge current that is
user programmable with a resistor. A small external capaci-
tor sets the maximum charge time. No external current
sense resistor is needed, and no blocking diode is required.
The IC automatically senses the DC input supply and bat-
tery insertion or removal. Heavily discharged batteries are
initially charged at a C/5 rate before a fast charge is applied.
Fast charge is terminated using the – ? V detection method.
Backup termination consists of a programmable timer and
battery overvoltage detector. An optional external NTC ther-
mistor can be used for temperature-based qualification of
charging. An optional programmable recharge feature au-
tomatically recharges batteries after discharge.
Manual shutdown is accomplished with the SHDN pin, while
removing input power automatically puts the LTC4060 into
sleep mode. During shutdown or sleep mode, battery drain
APPLICATIO S
is <1 μ A.
The LTC4060 is available in both low profile (0.75mm) 16-
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Portable Computers, Cellular Phones and PDAs
Medical Equipment
Charging Docks and Cradles
Portable Consumer Electronics
pin 5mm × 3mm DFN and 16-lead TSSOP packages. Both
feature exposed metal die mount pads for optimum ther-
mal performance.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
2-Cell, 2A Standalone NiMH Fast Charger with
Optional Thermistor and Charge Indicator
V IN = 5V
3.40
2-Cell NiMH Charging Profile
– ? V
TERMINATION
“CHARGE”
330 ?
SHDN
V CC
ACP
3.30
CHRG
NTC
SENSE
DRIVE
NTC
698 ?
LTC4060
PROG BAT
ARCT TIMER
+
NiMH
BATTERY
3.20
SEL0
SEL1
CHEM
PAUSE
GND
1.5nF
4060 TA01
3.10
0
10
20 30 40
CHARGE TIME (MINUTES)
50
60
4060 TA01b
4060f
1
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