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EAGLE Library Object
|Uploaded by:||Juergen Messerer|
|Remarks:||This library is a part of the archive file m-pad-2.1.zip|
Show other files in the archive
|Download options:||Download whole archive|
( 303.9 KiB )Download original file
( 1,153.0 KiB )Download file converted
to the latest EAGLE format
( 2,969.6 KiB )
|Description:||Linear's LTC4100 Smart Battery Charger Controller|
The LTC®4100 Smart Battery Charger is a single chip charging solution that dramatically simplifies construction
of an SBS compliant system. The LTC4100 implements a Level 2 charger function whereby the charger can
be programmed by the battery or by the host. A SafetySignal on the battery being charged is monitored for temperature,
connectivity and battery type information. The SMBus interface remains alive when the AC power adapter is
removed and responds to all SMBus activity directed to it, including SafetySignal status (via the ChargerStatus
command). The charger also provides an interrupt to the host whenever a status change is detected (e.g., battery
removal, AC adapter connection).
Charging current and voltage are restricted to chemistryspecific limits for improved system safety and reliability.
Limits are programmable by two external resistors. Additionally, the maximum average current from the AC adapter
is programmable to avoid overloading the adapter when simultaneously supplying load current and charging
current. When supplying system load current, charging current is automatically reduced to prevent adapter
Features: Single Chip Smart Battery Charger Controller 100% Compliant (Rev. 1.1) SMBus Support Allows for Operation with or without Host SMBus Accelerator Improves SMBus Timing Wide Output Voltage Range: 3.5V to 26V Hardware Interrupt and SMBAlert Response Eliminate Interrupt Polling High Efficiency Synchronous Buck Charger 0.5V Dropout Voltage; Maximum Duty Cycle > 98% AC Adapter Current Limit Maximizes Charge Rate ±0.8% Voltage Accuracy; ±4% Current Accuracy Up to 4A Charging Current Capability 10-Bit DAC for Charge Current Programming 11-Bit DAC for Charger Voltage Programming User-Selectable Overvoltage and Overcurrent Limits High Noise Immunity SafetySignal Sensor Available in a 24-Pin SSOP Package
Applications: Portable Instruments and Computers Data Storage Systems and Battery Backup Servers
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