THM BATTERY HOLDER FOR 20700 & 21700 / TRAY

L9961

Constant-Current/Voltage High Efficiency Battery Charger Features: Simple Charging of Li-Ion, NiMH and NiCd Batteries Very High Efficiency: Up to 97% Precision 0.5% Charging Voltage Accuracy Preset Battery Voltages: 12.3V, 12.6V, 16.4V and 16.8V 5% Charging Current Accuracy Charging Current Programmed by Resistor or DAC 0.5V Dropout Voltage, Duty Cycle > 99.5% AC Adapter Current Limit* Maximizes Charging Rate Flag Indicates Li-Ion Charge Completion Auto Shutdown with Adapter Removal Only 10µA Battery Drain When Idle Synchronizable Up to 280kHz

Constant-Voltage/Constant-Current Battery Charger Features: Charges NiCd, NiMH and Lithium-Ion Batteries - Only One 1/10W Resistor Is Needed to Program Charging Current High Efficiency Current Mode PWM with 1.5A Internal Switch and Sense Resistor 3% Typical Charging Current Accuracy Precision 0.5% Voltage Reference for Voltage Mode Charging or Overvoltage Protection Current Sensing Can Be at Either Terminal of the Battery Low Reverse Battery Drain Current: 3µA Charging Current Soft Start Shutdown Control 500kHz Version Uses Small Inductor

SEPIC Constant-Current/Constant-Voltage Battery Charger Features: Charger Input Voltage May Be Higher, Equal to or Lower Than Battery Voltage Charges Any Number of Cells Up to 30V* 1% Voltage Accuracy for Rechargeable Lithium Batteries 500kHz Switching Frequency Minimizes Inductor Size 100mV Current Sense Voltage for High Efficiency Battery Can Be Directly Grounded Charging Current Easily Programmable or Shut Down*Maximum Input Voltage = 40V VBAT

SEPIC Constant- or Programmable-Current/Constant-Voltage Battery Charger Features: Charger Input Voltage May Be Higher, Equal to or Lower Than Battery Voltage Charges Any Number of Cells Up to 20V 1% Voltage Accuracy for Rechargeable Lithium Batteries 100mV Current Sense Voltage for High Efficiency (LT1513) 0mV Current Sense Voltage for Easy Current Programming (LT1513-2) Battery Can Be Directly Grounded 500kHz Switching Frequency Minimizes Inductor Size Charging Current Easily Programmable or Shut Down

Constant-Current/Constant-Voltage Battery Charger with Preset Voltage and Termination Flag Features: Fast Charging of Li-Ion, NiMH and NiCd Batteries Simple Charge Current Programming Requires Only One Low Cost, 1/32W Resistor High Efficiency Charger with Up to 1.5A Charge Current Precision 0.6% Internal Voltage Reference Preset Battery Voltages: 4.1V, 4.2V, 8.2V, 8.4V 500kHz or 200kHz Switching Frequency Minimizes Charger Size Low Reverse Battery Drain Current: 5µA Flag Indicates Li-Ion Charge Completion 5% Typical Charge Current Accuracy Low Shutdown Current LT1571-1: 200kHz, Adjustable Voltage LT1571-2: 200kHz, Fixed 8.2V or 8.4V LT1571-5: 500kHz, Fixed 4.1V or 4.2V

Power Tracking 2A Battery Charger Features: Input Supply Voltage Regulation Loop for Peak Power Tracking in (MPPT) Solar Applications Wide Input Voltage Range: 4.95V to 34V (40V Abs Max) Programmable Charge Rate Up to 2A User Selectable Termination: C/10 or On-Board Termination Timer Resistor Programmable Float Voltage Up to 18V Accommodates 4-Cell Li-Ion/Polymer, 5-Cell LiFePO4, Lead-Acid Chemistries Parallelable for Higher Output Current 1MHz Fixed Frequency 0.5% Float Voltage Reference Accuracy 5% Charge Current Accuracy 2.5% C/10 Detection Accuracy Binary-Coded Open-Collector Status Pins Thermally Enhanced 3mm × 3mm DFN and MSE Packages

2.5A Monolithic Active Cell Balancer with Telemetry Interface Features: 2.5A Typical Average Cell Discharge Current Integrated 6A, 50V Power Switch Integrates Seamlessly with LTC680x Family: No Additional Software Required Selectable Current and Temperature Monitors Ultralow Quiescent Current in Shutdown Engineered for ISO 26262 Compliant Systems Isolated Balancing: Can Return Charge to Top of Stack Can Return Charge to Any Combination of Cells in Stack Can Return Charge to 12V Battery for Alternator Replacement Can Be Paralleled for Greater Discharge Capability All Quiescent Current in Operation Taken from Local Cell 16-Lead TSSOP Package

Battery Gas Gauge with I2C Interface Features: Indicates Accumulated Battery Charge and Discharge High Accuracy Analog Integration High Side Sense 1% Charge Accuracy ±50mV Sense Voltage Range SMBus/I2C Interface Configurable Alert Output/Charge Complete Input 2.7V to 5.5V Operating Range Quiescent Current Less Than 100µA Small 6-Pin 2mm × 3mm DFN and 8-Lead MSOP Packages