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BA3170 - Trickle-charge IC for two-cell/ lithium-ion batteries

Description

FOperation notes (1) Do not use values other than CT = 0.022µF for the timing capacitor, and C1 = 10µF for the output capacitor.

Features

  • 1) Output voltage can be varied using an external resistor. 2) The output pin is PNP output with low saturation voltage. 3) Built-in output current limiting circuit protects batteries from excessive current, and prevents destruction of the IC due to output shorts. The initial charge current is set to a low value (the current limit pin voltage can be used to vary the current limit value). 4) Pulse charging at over 99% of the final voltage. FAbsolute maximum ratings (Ta = 25_C) 5) 6) 7) 8) 9) Bu.

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Datasheet Details

Part number BA3170
Manufacturer ROHM
File Size 130.18 KB
Description Trickle-charge IC for two-cell/ lithium-ion batteries
Datasheet download datasheet BA3170 Datasheet

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Full PDF Text Transcription

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Regulator ICs Trickle-charge IC for two-cell, lithium-ion batteries BA3170 The BA3170 is a trickle-charge IC developed for two-cell, lithium-ion batteries.The IC includes a charge control circuit, a charge output transistor, and an LED driver for showing the charging status. FApplications Lithium-ion (two cell) battery chargers, and charging circuits FFeatures 1) Output voltage can be varied using an external resistor. 2) The output pin is PNP output with low saturation voltage. 3) Built-in output current limiting circuit protects batteries from excessive current, and prevents destruction of the IC due to output shorts. The initial charge current is set to a low value (the current limit pin voltage can be used to vary the current limit value).
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