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参数资料
| 型号： | LTC4066EPF#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/28页 |
| 文件大小： | 0K |
| 描述： | IC USB POWER MANAGER 24-UTQFN |
| 标准包装： | 2,500 |
| 功能： | 电源管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 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： | 24-UFQFN 裸露焊盘 |
| 供应商设备封装： | 24-UTQFN-EP（4x4） |
| 包装： | 带卷 (TR) |
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LTC4066/LTC4066-1
USB Power Controller and
Li-Ion Linear Charger with
Low Loss Ideal Diode
FEATURES
DESCRIPTION
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Seamless Transition Between Input Power Sources:
Li-Ion Battery, USB and 5V Wall Adapter
Low Loss (50mΩ) Ideal Diode Path from BAT to OUT
Programmable Charge Current Detection ( CHRG )
Load Dependent Charging Guarantees USB Input
Current Compliance
Analog Gas Gauge Function
Charges Single Cell Li-Ion Batteries Directly from
USB Port
Constant-Current/Constant-Voltage Operation with
Thermal Feedback to Maximize Charging Rate
Without Risk of Overheating*
Selectable 100% or 20% Current Limit
(e.g., 500mA/100mA)
Termination Timer Adapts to Actual Charge Current
Preset 4.2V Charge Voltage with 0.8% Accuracy
(4.1V for LTC4066-1)
NTC Thermistor Input for Temperature Quali?ed
Charging
Thin Pro?le (0.75mm) 24-Lead 4mm × 4mm
QFN Package
Ultrathin Pro?le (0.55mm) 24-Lead 4mm × 4mm
UTQFN Package (LTC4066 Only)
The LTC ? 4066/LTC4066-1 are USB power managers and
Li-Ion battery chargers designed to work in portable
battery-powered applications. The parts control the total
current used by the USB peripheral for operation and
battery charging. The total input current can be limited
to 100mA, 500mA or “unlimited” (i.e., above 2A). Battery
charge current is automatically reduced such that the sum
of the load current and the charge current does not exceed
the programmed input current limit.
The LTC4066/LTC4066-1 include a standalone constant-
current/constant-voltage linear charger for single cell
Li-ion batteries. The ?oat voltage applied to the battery
is held to a tight 0.8% tolerance, and charge current
is programmable using an external resistor to ground.
A programmable end-of-charge status output ( CHRG )
indicates full charge. BAT pin charge and discharge cur-
rents can be monitored via an analog output (I STAT ). Total
charge time is programmable by an external capacitor to
ground. When the battery drops 100mV below the ?oat
voltage, automatic recharging of the battery occurs. Also
featured is an NTC thermistor input used to monitor bat-
tery temperature while charging.
APPLICATIONS
The LTC4066/LTC4066-1 are available in a 24-pin thin
pro?le (0.75mm) 4mm × 4mm QFN package. The LTC4066
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Portable USB Devices
GPS, Cameras, Broadband Wireless Modems
Mulitple Input Chargers
is also available in a 24-pin ultrathin pro?le (0.55mm)
4mm × 4mm UTQFN package.
L , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. PowerPath
is a trademark of Linear Technology Corporation. All other trademarks are the property of their
respective owners. *Protected by U.S. Patents including 6522118.
TYPICAL APPLICATION
600
5V (NOM)
FROM USB
CABLE V BUS
4.7μF
IN
V NTC
NTC
WALL
OUT
BAT
+
510Ω
510Ω
TO LDOs,
REGs, ETC
4.7μF
500
400
300
I IN
I LOAD
SUSPEND USB POWER
500mA/100mA SELECT
INPUT CURRENT
SHDN
SUSP
HPWR
CLDIS
LTC4066
CHRG
ACPR
POL
I STAT
TO ADC FOR
GAS GAUGE
200
100
0
I BAT
CHARGING
LIMIT DISABLE
TIMER PROG
CLPROG
GND
0.1μF
100k
2k
2k
–100
0
100
200
300
400
500
600
4066 TA01
I LOAD (mA)
I BAT
(IDEAL DIODE)
4066 TA02
4066fc
1
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相关代理商/技术参数 |
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| LTC4066EUF#PBF | 功能描述:IC USB POWER MANAGER 24-QFN 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 |
| LTC4066EUF#TRPBF | 功能描述:IC USB POWER MANAGER 24-QFN 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 |
| LTC4066EUF-1#PBF | 功能描述:IC USB POWER MANAGER 24-QFN 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 |
| LTC4066EUF-1#TRPBF | 功能描述:IC USB POWER MANAGER 24-QFN 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 |
| LTC4067 | 制造商:LINER 制造商全称:Linear Technology 功能描述:USB Power Manager with OVP and Li-Ion/Polymer Charger |
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