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参数资料
| 型号： | LTC4075HVXEDD |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| 封装： | 3 X 3 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WEED-2, DFN-10 |
| 文件页数： | 1/16页 |
| 文件大小： | 170K |
| 代理商： | LTC4075HVXEDD |
LTC4075HVX
1
4075hvxf
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
High Voltage Dual Input
Li-Ion/Polymer Battery
Charger
The LTC4075HVX is a standalone linear charger that is
capable of charging a single-cell Li-Ion/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. The
LTC4075HVX features a maximum 22V rating for both
wall adapter and USB inputs although charging stops if
the selected power source exceeds the overvoltage limit.
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 LTC4075HVX
terminates the charge cycle when the charge current drops
below the programmed termination threshold after the
nal oat voltage is reached.
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. No trickle charge allows full current from the charger
when a load is connected directly to the battery.
■
22V Maximum Voltage for Wall Adapter and
USB Inputs
■
Charge 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
■
Overvoltage Lockout for Wall Adapter and
USB Inputs
■
No External MOSFET, Sense Resistor or Blocking
Diode Needed
■
Thermal Regulation Maximizes Charge Rate Without
Risk of Overheating*
■
Preset Charge Voltage with ±0.35% Accuracy
■
Programmable Charge Current Termination
■
40μA USB Suspend Current in Shutdown
■
Independent “Power Present” Status Outputs
■
Charge Status Output
■
Automatic Recharge
■
Available in a Thermally Enhanced, Low Prole
(0.75mm) 10-Lead (3mm × 3mm) DFN Package
■
Cellular Telephones
■
Handheld Computers
■
Portable MP3 Players
■
Digital Cameras
, 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, 6700364.
Dual Input Battery Charger for Single-Cell Li-Ion
LTC4075HVX
DCIN
USBIN
IUSB
IDC
BAT
ITERM
1.24k
1%
2k
1%
2k
1%
WALL
ADAPTER
USB
PORT
1
μF
1
μF
+
4.2V
SINGLE CELL
Li-Ion BATTERY
800mA (WALL)
500mA (USB)
4075hvx TA01
GND
SUPPLY VOLTAGE (V)
2
I BAT
(mA)
900
800
700
600
500
400
300
200
100
0
19
345678
20
4075hvx TA01b
RIDC = 1.24k
RIUSB = 2k
VBAT = 3.5V
CHARGE FROM DCIN
CHARGE
FROM USBIN
Charge Current vs Supply Voltage
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4075HVXEDD#PBF | 功能描述:IC CHARGER LI-ION 10-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC4075HVXEDD#PBF | 制造商:Linear Technology 功能描述:BATT CHARGER LI ON DUAL 10DFN 制造商:Linear Technology 功能描述:BATT CHARGER, LI ON, DUAL, 10DFN |
| LTC4075HVXEDD#TRPBF | 功能描述:IC CHARGER LI-ION 10-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC4075X | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Input USB/AC Adapter Standalone Li-Ion Battery Chargers |
| LTC4075XEDD | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Input USB/AC Adapter Standalone Li-Ion Battery Chargers |
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