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参数资料
| 型号： | LTC4009CUF-2#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | BATTERY CHARGE CONTROLLER, 633 kHz SWITCHING FREQ-MAX, PQCC20 |
| 封装： | 4 X 4 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, MO-220WGGD-1, QFN-20 |
| 文件页数： | 1/28页 |
| 文件大小： | 351K |
| 代理商： | LTC4009CUF-2#PBF |
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4009fd
LTC4009
LTC4009-1/LTC4009-2
Typical applicaTion
FeaTures
applicaTions
DescripTion
High Efficiency,
Multi-Chemistry
Battery Charger
The LTC4009 is a constant-current/constant-voltage
battery charger controller. It uses a synchronous quasi-
constant frequency PWM control architecture that will
not generate audible noise with ceramic bulk capacitors.
Charge current is set by the combination of external
sense, input and programming resistors. With no built-in
termination, the LTC4009 family charges a wide range of
batteries under external control.
TheLTC4009featuresafullyadjustableoutputvoltage,while
theLTC4009-1andLTC4009-2canbepin-programmedfor
lithium-ion/polymer battery packs of 1-, 2-, 3- or 4-series
cells. The LTC4009-1 provides output voltage of 4.1V/cell,
and the LTC4009-2 is a 4.2V/cell version.
ThedeviceincludesACadapterinputcurrentlimitingwhich
maximizes the charge rate for a fixed input power level. An
externalsenseresistorprogramstheinputcurrentlimit,and
theICLstatuspinindicateswhenthebatterychargecurrent
is being reduced as a result of AC adapter current limiting.
The CHRG status pin is active during all charging modes,
including special indication for low charge current.
n
General Purpose Battery Charger Controller
n
Efficient 550kHz Synchronous Buck PWM Topology
n
±0.5% Output Float Voltage Accuracy
n
Programmable Charge Current: 4% Accuracy
n
Programmable AC Adapter Current Limit:
3% Accuracy
n
No Audible Noise with Ceramic Capacitors
n
Wide Input Voltage Range: 6V to 28V
n
Wide Output Voltage Range: 2V to 28V
n
Indicator Outputs for AC Adapter Present, Charging,
C/10 Current Detection and Input Current Limiting
n
Analog Charge Current Monitor
n
Micropower Shutdown
n
Thermally Enhanced 20-Pin 4mm
× 4mm × 0.75mm
QFN Package
n
Notebook Computers
n
Portable Instruments
n
Battery Backup Systems
Efficiency at DCIN = 20V
CLP
FROM
ADAPTER
13V TO 20V
CHARGE
CURRENT
MONITOR
0.1F
5.1k
33m
3.01k
0.1F
6.8H
33m
DCIN
0.1F
2F
0.1F
14.3k
1.5k
6.04k
301k
32.8k
26.7k
LTC4009
DCDIV
CHRG
ACP
ICL
SHDN
ITH
PROG
CLN
BOOST
TGATE
SW
INTVDD
BGATE
TO/FROM
MCU
GND
CSP
CSN
BAT
FBDIV
VFB
20F
POWER TO
SYSTEM
4.7nF
20F
4009 TA01a
12.3V
Li-Ion
BATTERY
3.01k
+
CHARGE CURRENT (A)
0
70
EFFICIENCY
(%)
POWER
LOSS
(mW)
75
80
85
90
100
1000
10000
0.5
1.0
1.5
2.0
4009 TA01b
2.5
3.0
95
EFFICIENCY
POWER LOSS
VOUT = 12.3V
RSENSE = 33m
RIN = 3.01k
RPROG = 26.7k
DIN = SSB44
L = IHLP-2525CZ 6.8H
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
PowerPath and ThinSOT are trademarks of Linear Technology Corporation. All other trademarks
are the property of their respective owners. Protected by U.S. Patents including 5723970.
相关PDF资料 |
PDF描述 |
|---|---|
| LTC4009CUF-1#PBF | BATTERY CHARGE CONTROLLER, 633 kHz SWITCHING FREQ-MAX, PQCC20 |
| LTC4012IUF-3#PBF | BATTERY CHARGE CONTROLLER, 633 kHz SWITCHING FREQ-MAX, PQCC20 |
| LTC4012IUF-3#TRPBF | BATTERY CHARGE CONTROLLER, 633 kHz SWITCHING FREQ-MAX, PQCC20 |
| LTC4012IUF#TRPBF | SWITCHING CONTROLLER, 633 kHz SWITCHING FREQ-MAX, PQCC20 |
| LTC4012IUF-1#TRPBF | SWITCHING CONTROLLER, 633 kHz SWITCHING FREQ-MAX, PQCC20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4009CUF-2-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Effi ciency, Multi-Chemistry Battery Charger |
| LTC4009CUF-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Effi ciency, Multi-Chemistry Battery Charger |
| LTC4009CUF-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Effi ciency, Multi-Chemistry Battery Charger |
| LTC4009IUF#PBF | 功能描述:IC CHARGER BATTERY MC 20-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
| LTC4009IUF#TRPBF | 功能描述:IC CTLR BATT CHARGER 20QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
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