Philips TEA1104 Datasheet

Philips cost effective battery monitor and fast charge ic for nicd and nimh chargers data sheet

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DATA SHEET
TEA1104; TEA1104T
Cost effective battery monitor and
fast charge IC for NiCd and NiMH
chargers
Objective specification
File under Integrated Circuits, IC03
INTEGRATED CIRCUITS
1996 Feb 26

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Summary of Contents for Philips TEA1104

  • Page 1 DATA SHEET TEA1104; TEA1104T Cost effective battery monitor and fast charge IC for NiCd and NiMH chargers Objective specification File under Integrated Circuits, IC03 INTEGRATED CIRCUITS 1996 Feb 26...
  • Page 2 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.
  • Page 3: Block Diagram

    V bat battery low protection 1996 Feb 26 R ref SUPPLY FILTER BATTERY SAMPLE- FULL AND-HOLD DETECTOR T max T min TEA1104 TEA1104T T cut-off Fig.1 Block diagram. Objective specification TEA1104; TEA1104T fast trickle MODE CONTROL LATCH trickle TIMER OSCILLATOR MGE354...
  • Page 4: Functional Description

    TEA1104; TEA1104T. An external power current source charges the batteries via an electronic switch which is controlled by the TEA1104. The TEA1104 monitors the battery voltage. Fully charged batteries are detected when the battery voltage peaks. In fact, a voltage drop of 0.25% with respect to the top value...
  • Page 5 TEA1104; TEA1104T The battery voltage is sensed each ‘cycle time’. The cycle time is defined as: –...
  • Page 6 IC for NiCd and NiMH chargers Output drivers Several output drive possibilities are supported by the TEA1104, to limit the fast charge current and to indicate the mode that the charge is in. In mains isolated systems, output drive current is available for a bipolar or MOS switching device.
  • Page 7 FAST dual LED indication FULL FAST - V bat 0.25% t dis 3% TO 1 V; Fig.5 Flow chart of the TEA1104. Objective specification TEA1104; TEA1104T 5.25 V circuit non-active I DD 45 A (note 3) stop charge total reset...
  • Page 8: Limiting Values

    In accordance with “SNW-FQ-611 part E” . The numbers of the quality specification can be found in the “Quality Reference Handbook” . The handbook can be ordered using the code 9397 750 00192. 1996 Feb 26 TEA1104; TEA1104T CONDITIONS MIN.
  • Page 9 = 1 mA = 20 A Rref = 0 to 45 C = 1.5 V = 15 mA LED(sat) = 15 V = 2.4 V = 2 V Objective specification TEA1104; TEA1104T MIN. TYP. MAX. 5.45 11.5 11.5 12.8 4.65 5.05 5.45 4.03...
  • Page 10: Application Information

    IC for NiCd and NiMH chargers APPLICATION INFORMATION A guideline for the settings of TEA1104 and its external components selection is given based on an example of a 1 hour charger for a 4 cell NiCd or NiMH battery pack. The basic application diagram as illustrated in Fig.6 which is...
  • Page 11 1996 Feb 26 BD434 LED 2 LED1 FULL FAST BAW62 BC548 BC548 Fig.6 Basic application diagram. TEA1104 Fig.7 Application diagram. Objective specification TEA1104; TEA1104T V bat TEA1104 V ref C osc R ref MGE358 cells MGE357...
  • Page 12: Package Outlines

    0.19 0.019 0.0100 0.20 0.16 0.244 0.050 0.014 0.0075 0.19 0.15 0.228 REFERENCES JEDEC EIAJ MS-012AA Objective specification TEA1104; TEA1104T (A ) detail X 5 mm 1.05 0.25 0.25 0.039 0.028 0.041 0.01 0.01 0.016 0.024 EUROPEAN PROJECTION SOT96-1 0.028 0.004...
  • Page 13 0.53 1.07 0.36 0.38 0.89 0.23 0.021 0.042 0.014 0.39 0.015 0.035 0.009 0.36 REFERENCES JEDEC EIAJ MO-001AN TEA1104; TEA1104T (e ) 10 mm 6.48 3.60 8.25 2.54 7.62 6.20 3.05 7.80 0.26 0.14 0.32 0.10 0.30 0.24 0.12 0.31...
  • Page 14 10 seconds at up to 300 C. When using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 C. Objective specification TEA1104; TEA1104T...
  • Page 15: Life Support Applications

    Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.
  • Page 16 Italy: PHILIPS SEMICONDUCTORS S.r.l., Piazza IV Novembre 3, 20124 MILANO, Tel. (0039)2 6752 2531, Fax. (0039)2 6752 2557 Japan: Philips Bldg 13-37, Kohnan 2 -chome, Minato-ku, TOKYO 108, Tel. (03)3740 5130, Fax. (03)3740 5077 Korea: Philips House, 260-199 Itaewon-dong, Yongsan-ku, SEOUL, Tel. (02)709-1412, Fax. (02)709-1415 Malaysia: No.

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Tea1104t

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