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参数资料
| 型号： | LTC1960CUHF#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/28页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHRGR/SELECTR DL 38-QFN |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电源电压： | 6 V ~ 28 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 38-WFQFN 裸露焊盘 |
| 供应商设备封装： | 38-QFN（5x7） |
| 包装： | 带卷 (TR) |
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LTC1960
Dual Battery Charger/
Selector with SPI Interface
Complete Dual-Battery Charger/Selector System
Serial SPI Interface Allows External μC Control and
Simultaneous Dual-Battery Discharge Extends Run
Simultaneous Dual-Battery Charging Reduces
Automatic PowerPath? Switching in <10μs
Circuit Breaker Protects Against Overcurrent Faults
5% Accurate Adapter Current Limit Maximizes
95% Efficient Synchronous Buck Charger
Charger Has Low 0.5V Dropout Voltage
No Audible Noise Generation, Even with Ceramic
11-Bit VDAC Delivers 0.8% Voltage Accuracy
10-Bit IDAC Delivers 5% Current Accuracy
V IN Up to 32V; V BATT Up to 28V
Available in 5mm × 7mm 38-Pin QFN and 36-Pin
Portable Computers
Portable Instruments
FEATURES
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Monitoring
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Time by Typically 10%
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Charging Time by Up to 50%
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Prevents Power Interruption
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Charging Rate
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Capacitors
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Narrow SSOP Packages
APPLICATIONS
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TYPICAL APPLICATION
DESCRIPTION
The LTC ? 1960 is a highly integrated battery charger and
selector intended for portable products using dual smart
batteries. A serial SPI interface allows an external microcon-
troller to control and monitor status of both batteries.
A proprietary PowerPath architecture supports simulta-
neous charging or discharging of both batteries. Typical
battery run times are extended by 10%, while charging
times are reduced by up to 50%. The LTC1960 automati-
cally switches between power sources in less than 10μs
to prevent power interruption upon battery or wall adapter
removal.
The synchronous buck battery charger delivers 95% effi-
ciency with only 0.5V dropout voltage, and prevents audible
noise in all operating modes. Patented input current limit-
ing with 5% accuracy charges batteries in the shortest
possible time without overloading the wall adapter.
The LTC1960’s 5mm × 7mm 38-pin QFN and 36-pin nar-
row SSOP packages allow implementation of a complete
SBS-compliant dual battery system while consuming
minimum PCB area.
L , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
No R SENSE and PowerPath are trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners. Protected by U.S. Patents, including
5481178, 5723970, 6304066, 6580258.
Dual vs Sequential Charging
DC
IN
LTC1960 Dual Battery/Selector System Architecture
3500
3000
2500
2000
1500
1000
BAT1
CURRENT
BAT2
CURRENT
SEQUENTIAL
500
0
BAT2
BAT1
LTC1960
4
SPI
SYSTEM POWER
MICROCONTROLLER
SMBus
3500
3000
2500
2000
1500
1000
500
0
0
BAT1
CURRENT
50
BAT2
CURRENT DUAL
100
MINUTES
100 150 200 250
TIME (MINUTES)
300
1960 TA01
BATTERY TYPE: 10.8V Li-Ion (MOLTECH NI2020)
REQUESTED CURRENT = 3A
REQUESTED VOLTAGE = 12.3V
MAX CHARGER CURRENT = 4.1A 1960 TA01b
1960fb
1
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| LTC1966CMS8#TR | 功能描述:IC PREC RMS/DC CONV MCRPWR 8MSOP RoHS:否 类别:集成电路 (IC) >> PMIC - RMS 至 DC 转换器 系列:- 标准包装:46 系列:- 电流 - 电源:1.2mA 电源电压:±18 V，36 V 安装类型:表面贴装 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC W 包装:管件 |
| LTC1966CMS8#TRPBF | 功能描述:IC PREC RMS/DC CONV MCRPWR 8MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - RMS 至 DC 转换器 系列:- 标准包装:46 系列:- 电流 - 电源:1.2mA 电源电压:±18 V，36 V 安装类型:表面贴装 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC W 包装:管件 |
| LTC1966CMS8PBF | 制造商:Linear Technology 功能描述:RMS-to-DC Converter Prec. uPower MSOP8 |
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