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參數(shù)資料
| 型號(hào)： | LTC4097EDDB |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO12 |
| 封裝： | 3 X 2 MM, 0.75 MM HEIGHT, PLASTIC, DFN-12 |
| 文件頁(yè)數(shù)： | 1/20頁(yè) |
| 文件大?。?/td> | 219K |
| 代理商： | LTC4097EDDB |
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LTC4097
1
4097f
LTC4097
DCIN
USBIN
IUSB
IDC
BAT
VNTC
HPWR
NTC
ITERM
1.24k
1%
2k
1%
2k
1%
WALL
ADAPTER
USB
PORT
1
F
1
F
+
4.2V
SINGLE CELL
Li-Ion BATTERY
800mA (WALL)
100mA/500mA (USB)
4097 TA01
GND
T
TIME (HR)
0
CHARGE
CURRENT
(mA)
BATTERY
VOLTAGE
(V)
DCIN
VOLTAGE
(V)
4.2
200
0
400
800
600
1000
1.5
2.5
4097 TA01b
3.6
3.4
5.0
4.0
3.8
2.5
0
0.5
1.0
2.0
3.0
CONSTANT VOLTAGE
USBIN = 5V
TA = 25°C
RIDC = 1.24k
RIUSB = 2k
HPWR = 5V
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
USB/Wall Adapter
Standalone Li-Ion/Polymer
Battery Charger
The LTC4097 is a standalone linear battery charger that
is capable of charging a single-cell Li-Ion or Li-Polymer
battery from both wall adapter and USB inputs. The charger
can detect power at the inputs and automatically select
the appropriate power source for charging.
No external sense resistor or blocking diode is required
for charging due to the internal MOSFET architecture.
Internal thermal feedback regulates the battery charge
current to maintain a constant die temperature during high
power operation or high ambient temperature conditions.
The oat voltage is xed at 4.2V and the charge current
is programmed with an external resistor. The LTC4097
terminates the charge cycle when the charge current drops
below the user programmed termination threshold after
the nal oat voltage is reached. The LTC4097 can be put
into shutdown mode reducing the DCIN supply current to
20A, the USBIN supply current to 10A, and the battery
drain current to less than 2A even with power applied
to both inputs.
Other features include trickle charge, automatic recharge,
undervoltage lockout, charge status output, an NTC therm-
istor input used to monitor battery temperature and VNTC
power present output with 120mA drive capability.
Dual Input Battery Charger for Single-Cell Li-Ion Battery
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
*Protected by U.S. Patents including 6522118.
■
Charges Single-Cell Li-Ion/Polymer Battery from
Wall Adapter and USB Inputs
■
Automatic Input Detection (Wall Adapter Input has
Charging Priority)
■
Charge Current Programmable up to 1.2A from
Wall Adapter Input
■
Programmable Charge Current Termination
■
NTC Thermistor Input for Temperature Qualied
Charging
■
Independent DC, USB Charge Current Programming
■
Preset Float Voltage with ±0.6% Accuracy
■
Thermal Regulation Maximizes Charge Rate Without
Risk of Overheating*
■
Charge Status Output
■
Automatic Recharge
■
20A Charger Quiescent Current in Shutdown
■
Available in a Thermally Enhanced, Low Prole
(0.75mm) 12-Lead (3mm × 2mm) DFN Package
■
Cellular Telephones
■
MP3 Players
■
Portable Handheld Devices
Complete Charge Cycle (1100mAh Battery)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4097EDDB#PBF | 制造商:Linear Technology 功能描述:Battery Charger Li-Ion/Li-Pol 1200mA 4.2V 12-Pin DFN EP |
| LTC4097EDDB#TRMPBF | 功能描述:IC CHARGER LI-ION/POLY 12-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:Impedance Track™ 功能:燃料，電量檢測(cè)計(jì)/監(jiān)控器 電池化學(xué):鋰離子（Li-Ion） 電源電壓:2.4 V ~ 2.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:20-TSSOP 包裝:帶卷 (TR) 產(chǎn)品目錄頁(yè)面:1020 (CN2011-ZH PDF) 配用:BQ27350EVM-ND - BQ27350EVM 其它名稱:296-21665-2 |
| LTC4097EDDB#TRPBF | 功能描述:IC CHARGER LI-ION/POLY 12-DFN 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 |
| LTC4098 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual-Input Power Manager |
| LTC4098-1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual-Input Power Manager |
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