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TEA1104 Datasheet(PDF) 2 Page - NXP Semiconductors |
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TEA1104 Datasheet(HTML) 2 Page - NXP Semiconductors |
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2 / 16 page  1996 Feb 26 2 Philips Semiconductors Objective specification Cost effective battery monitor and fast charge IC for NiCd and NiMH chargers TEA1104; TEA1104T FEATURES • Accurate detection of fully charged batteries by currentless peak voltage sensing • Switch-over from fast to safe trickle charge current at battery full detection • Fast charge termination back-up by maximum time and maximum temperature detection • Several trickle charge drive possibilities for mains isolated and non-mains isolated systems • Battery checking to protect against short-circuited and open batteries • Battery monitor allows recharging of different battery packs in the same charger • Dual LED indicator provision • External regulator not required because of large input voltage range • Few low cost external components required. APPLICATIONS • Portable telephone • Portable computer • Portable audio • Portable video. GENERAL DESCRIPTION The TEA1104 is manufactured in a BiCMOS process intended to be used as a battery monitor circuit in charge systems for NiCd and NiMH batteries. It is especially designed for cost effective compact consumer applications. The circuit is able to detect fully charged batteries by currentless battery voltage sensing. Several output drive functions are available to control the (reduced) trickle charge current to keep the batteries full with maximum life expectations. The battery full detection is backed up by two independent mechanisms to make the system fail safe; maximum time and maximum temperature. QUICK REFERENCE DATA ORDERING INFORMATION SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VP supply voltage 5.45 − 11.5 V IP supply current outputs off −− 3mA Vbat voltage range of battery full detection 0.81 − 3.6 V ∆V bat/Vbat voltage peak detection level with respect to top value − 0.25 − % Ibat battery monitor input current −− 1nA Vbat(l) battery voltage protection low − 0.81 0.91 V Vbat(h) battery voltage protection high 3.5 3.6 − V fosc oscillator frequency 10 − 100 kHz TYPE NUMBER PACKAGE NAME DESCRIPTION VERSION TEA1104 DIP8 plastic dual in-line package; 8 leads (300 mil) SOT97-1 TEA1104T SO8 plastic small outline package; 8 leads; body width 3.9 mm SOT96-1 |
Similar Part No. - TEA1104 |
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Similar Description - TEA1104 |
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