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Part Number: LTC1960
Description: The LTC®1960 is a highly-integrated battery charger and selector intended for portable ...
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LTC1960
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DataSheet
General Description
LTC1960 General 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 microcontroller to control and monitor status of both batteries.
A proprietary PowerPath architecture supports simultaneous 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 automatically switches between power sources in less than 10ms to prevent power interruption upon battery or wall adapter removal.
The synchronous buck battery charger delivers 95% efficiency with only 0.5V dropout voltage, and prevents audible noise in all operating modes. Patented* input current limiting with 5% accuracy charges batteries in the shortest possible time without overloading the wall adapter.
The LTC1960's 36-pin narrow SSOP package allows implementation of a complete SBS-compliant dual battery system while consuming minimum PCB area.
LTC1960 Maximum Ratings
Voltage from DCIN, SCP, SCN, CLP, VPLUS,
SW to GND ...............................................32V to 0.3V
Voltage from SCH1, SCH2 to GND ............28V to 0.3V
Voltage from BOOST to GND ....................41V to 0.3V
PGND with Respect to GND ................................ ±0.3V
CSP, CSN, BAT1, BAT2 to GND ....................28V to 5V
LOPWR, DCDIV to GND ............................10V to 0.3V
SSB, SCK, MOSI, MISO to GND................... 7V to 0.3V
COMP1 to GND .......................................... 5V to 0.3V
Operating Ambient Temperature
Range (Note 7) ....................................... 0°C to 70°C
Operating Junction Temperature ..... 40°C to 125°C
Storage Temperature ...................... 65°C to 150°C
Lead Temperature (Soldering, 10 sec)............... 300°C
LTC1960 Features
· Complete Dual-Battery Charger/Selector System
· Serial SPI Interface Allows External mC Control and Monitoring
· Simultaneous Dual-Battery Discharge Extends Run Time by Typically 10%
· Simultaneous Dual-Battery Charging Reduces Charging Time by up to 50%
· Automatic PowerPathTM Switching in <10ms Prevents Power Interruption
· Available in a 36-Pin Narrow SSOP Package
· Circuit Breaker Protects Against Overcurrent Faults
· 5% Accurate Adapter Current Limit Maximizes Charging Rate*
· 95% Efficient Synchronous Buck Charger
· Charger has Low 0.5V Dropout Voltage
· No Audible Noise Generation, even with Ceramic Capacitors
· 11-Bit VDAC Delivers 0.8% Voltage Accuracy
· 10-Bit IDAC Delivers 5% Current Accuracy
· VIN up to 32V; VBATT up to 28V
· Serial SPI Interface Allows External mC Control and Monitoring
· Simultaneous Dual-Battery Discharge Extends Run Time by Typically 10%
· Simultaneous Dual-Battery Charging Reduces Charging Time by up to 50%
· Automatic PowerPathTM Switching in <10ms Prevents Power Interruption
· Available in a 36-Pin Narrow SSOP Package
· Circuit Breaker Protects Against Overcurrent Faults
· 5% Accurate Adapter Current Limit Maximizes Charging Rate*
· 95% Efficient Synchronous Buck Charger
· Charger has Low 0.5V Dropout Voltage
· No Audible Noise Generation, even with Ceramic Capacitors
· 11-Bit VDAC Delivers 0.8% Voltage Accuracy
· 10-Bit IDAC Delivers 5% Current Accuracy
· VIN up to 32V; VBATT up to 28V
LTC1960 Typical Application
· Portable Computers
· Portable Instruments
LTC1960 Connection Diagram
LTC1960
PDF/DataSheet Download
- Datasheet: LTC1960
- File Size: 239847 KB
- Manufacturer: Linear
- Click here to Download
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