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LT1505 - Constant-Current/Voltage High Efficiency Battery Charger

Key Features

  • s s s s LT1505 Constant-Current/Voltage High Efficiency Battery Charger.

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Other Datasheets by Linear Technology (now Analog Devices)

Part Number Description
LT1500 Adaptive-Frequency Current Mode Switching Regulators
LT1501 Adaptive-Frequency Current Mode Switching Regulators
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Full PDF Text Transcription (Reference)

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FEATURES s s s s LT1505 Constant-Current/Voltage High Efficiency Battery Charger DESCRIPTIO The LT®1505 PWM battery charger controller fast charges multiple battery chemistries including lithium-ion (Li-Ion), nickel-metal-hydride (NiMH) and nickel-cadmium (NiCd) using constant-current or constant-voltage control. Maximum current can be easily programmed by resistors or a DAC. The constant-voltage output can be selected for 3 or 4 series Li-Ion cells with 0.5% accuracy. A third control loop limits the current drawn from the AC adapter during charging*. This allows simultaneous operation of the equipment and fast battery charging without overloading the AC adapter. The LT1505 can charge batteries ranging from 2.5V to 20V with dropout voltage as low as 0.5V.