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參數資料
| 型號： | LTC4075XEDD#TR |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| 封裝： | 3 X 3 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WEED-2, DFN-10 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 195K |
| 代理商： | LTC4075XEDD#TR |
LTC4075/LTC4075X
1
4075Xfa
The LTC4075/LTC4075X are standalone linear chargers
that are capable of charging a single-cell Li-Ion battery
from both wall adapter and USB inputs. The chargers 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 LTC4075
terminates the charge cycle when the charge current drops
below the programmed termination threshold after the
nal oat voltage is reached. With power applied to both
inputs, the LTC4075/LTC4075X 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.
Other features include automatic recharge, undervoltage
lockout, charge status outputs, and “power present”
status outputs to indicate the presence of wall adapter
or USB power.
Dual Input Battery Charger for Single-Cell Li-Ion
LTC4075
DCIN
USBIN
IUSB
IDC
BAT
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)
500mA (USB)
4075 TA01
GND
Dual Input USB/AC
Adapter Standalone Li-Ion
Battery Chargers
TIME (HR)
0
CHARGE
CURRENT
(mA)
BATTERY
VOLTAGE
(V)
DCIN
VOLTAGE
(V)
4.2
200
0
400
800
600
1000
1.5
2.5
4075 TA01b
3.6
3.4
5.0
4.0
3.8
2.5
0
–2.5
0.5
1.0
2.0
3.0
CONSTANT VOLTAGE
USBIN = 5V
TA = 25°C
RIDC = 1.25k
RIUSB = 2k
Complete Charge Cycle (1100mAh Battery)
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
*Protected by U.S. patents, including 6522118, 6700364
APPLICATIO S
U
FEATURES
DESCRIPTIO
U
TYPICAL APPLICATIO
U
■ Charges Single-Cell Li-Ion Batteries from Wall
Adapter and USB Inputs
■ Automatic Input Power Detection and Selection
■ Charge Current Programmable up to 950mA from
Wall Adapter Input
■ No External MOSFET, Sense Resistor or Blocking
Diode Needed
■ Thermal Regulation Maximizes Charging Rate
Without Risk of Overheating*
■ Preset Charge Voltage with ±0.6% Accuracy
■ Programmable Charge Current Termination
■ 18A USB Suspend Current in Shutdown
■ Independent “Power Present” Status Outputs
■ Charge Status Output
■ Automatic Recharge
■ Available Without Trickle Charge (LTC4075X)
■ Available in a Thermally Enhanced, Low Prole
(0.75mm) 10-Lead (3mm
× 3mm) DFN Package
■ Cellular Telephones
■ Handheld Computers
■ Portable MP3 Players
■ Digital Cameras
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相關代理商/技術參數 |
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| LTC4076 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Input Standalone Li-Ion Battery Charger |
| LTC4076EDD | 功能描述:IC CHARG BATT LI-ON USB 10DFN RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標準包裝:61 系列:- 功能:電源管理 電池化學: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 供應商設備封裝:22-DFN（6x3）裸露焊盤 包裝:管件 |
| LTC4076EDD#PBF | 功能描述:IC CHARG BATT LI-ON USB 10DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標準包裝:2,000 系列:Impedance Track™ 功能:燃料，電量檢測計/監控器 電池化學: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） 供應商設備封裝:20-TSSOP 包裝:帶卷 (TR) 產品目錄頁面:1020 (CN2011-ZH PDF) 配用:BQ27350EVM-ND - BQ27350EVM 其它名稱:296-21665-2 |
| LTC4076EDD#TR | 功能描述:IC CHARG BATT LI-ON USB 10DFN RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標準包裝:61 系列:- 功能:電源管理 電池化學: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 供應商設備封裝:22-DFN（6x3）裸露焊盤 包裝:管件 |
| LTC4076EDD#TRPBF | 功能描述:IC CHARG BATT LI-ON USB 10DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標準包裝:61 系列:- 功能:電源管理 電池化學: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 供應商設備封裝:22-DFN（6x3）裸露焊盤 包裝:管件 |
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