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TS1108-200IQT1633 Datasheet(Fiches technique) 1 Page - Silicon Laboratories

Numéro de pièce TS1108-200IQT1633
Description  Portable/Battery-Powered Systems
Télécharger  23 Pages
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Fabricant  SILABS [Silicon Laboratories]
Site Internet  http://www.silabs.com
Logo SILABS - Silicon Laboratories

TS1108-200IQT1633 Datasheet(HTML) 1 Page - Silicon Laboratories

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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 indicat-
ing the battery charging polarity. The battery discharge current is monitored by a current-
sense amplifier through an external sense resistor. Utilizing an Integrator and a Compa-
rator 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.
Applications
• Power Management Systems
• Portable/Battery-Powered Systems
• Smart Chargers
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
Amplifier
• Wide CSA Input Common Mode Range: +2
V to +27 V
• Low CSA Input Offset Voltage: 150
µV(max)
• Low Gain Error: 1%(max)
• Two Gain Options Available:
• Gain = 20 V/V : TS1108-20
• Gain = 200 V/V : TS1108-200
• 16-Pin TQFN Packaging (3 mm x 3 mm)
silabs.com | Smart. Connected. Energy-friendly.
Rev. 1.0


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