9V Battery Snaps & Contacts 9V PC Battery SNAP CONNECTOR

Battery Management

Battery Battery Protection IC Lithium Ion SOT-23-6

Isolated DC/DC Converters 48Vin 2.5Vout 23A TH Neg. logic

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

LASS 2/3 TRANSFORMER 115V to 8V, 50/60 Hz