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TS1108 - Bidirectional Current Sense Amplifier

Key Features

  • Coulomb Counting plus Charge Polarity.
  • Adjustable Charge Count Frequency.
  • External Crystal Oscillator Not Required.
  • Low Supply Current.
  • Current Sense Amplifier: 0.68 µA.
  • IVDD: 1.93 µA.
  • High Side Bidirectional Current Sense.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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TS1108 Data Sheet TS1108 Coulomb Counter: Bidirectional Current Sense Amplifier with Integrator + Comparator The TS1108 coulomb counter accurately measures battery depletion while also indicating the battery charging polarity. The battery discharge current is monitored by a currentsense amplifier through an external sense resistor. Utilizing an Integrator and a Comparator plus a Monoshot, the TS1108 voltage-to-frequency converter provides a series of 90 µs output pulses at COUT which represents an accumulation of coulombs flowing out of the battery. The charge count frequency is adjustable by the integration resistor and capacitor.