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TEA1103 View Datasheet(PDF) - Philips Electronics

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TEA1103 Datasheet PDF : 28 Pages
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Philips Semiconductors
Fast charge ICs for NiCd and NiMH
batteries
Preliminary specification
TEA1103; TEA1103T;
TEA1103TS
FEATURES
Safe and fast charging of Nickel Cadmium (NiCd) and
Nickel Metal Hydride (NiMH) batteries
Pin compatible with the TEA1102x, fast charge ICs for
LiIon, SLA, NiCd and NiMH batteries
Three charge states for NiCd or NiMH; fast, top-off and
trickle or voltage regulation (optional)
Adjustable fast charge current [0.5CA to 5CA nominal
(CA = Capacity Amperes)]
DC top-off and pulsating trickle charge current (NiCd
and NiMH)
Temperature dependent T/t battery full detection
Automatic switch-over to accurate peak voltage
detection (14%) if no NTC is applied
Possibility to use both T/t and peak voltage detection
as main fast charge termination
Support of inhibit during all charging states
Manual refresh with regulated adjustable discharge
current (NiCd and NiMH)
Voltage regulation in the event of no battery
Support of battery voltage based charge indication and
buzzer signalling at battery insertion, end of refresh and
at full detection
Single, dual and separate LED outputs for indication of
charge status state
Minimum and maximum temperature protection
Time-out protection
Short-circuit battery voltage protection
Can be applied with few low-cost external components.
GENERAL DESCRIPTION
The TEA1103x are fast charge ICs which are able to fast
charge NiCd and NiMH batteries.
The main fast charge termination for NiCd and NiMH
batteries are T/t and peak voltage detection, both of
which are well proven techniques. The TEA1103x
automatically switches over from T/t to peak voltage
detection if the thermistor fails or is not present. The T/t
detection sensitivity is temperature dependent, thus
avoiding false charge termination. Three charge states
can be distinguished; fast, top-off and trickle.
Several LEDs, as well as a buzzer, can be connected to
the TEA1103x for indicating battery insertion, charge
states, battery full condition and protection mode.
The TEA1103x are contained in a 20-pin package and are
manufactured in a BiCMOS process, essentially for
integrating the complex mix of requirements in a single
chip solution. Only a few external low cost components are
required in order to build a state of the art charger.
The TEA1103x are pin compatible with the TEA1102x, fast
charge ICs for LiIon, SLA, NiCd and NiMH batteries.
ORDERING INFORMATION
TYPE
NUMBER
TEA1103
TEA1103T
TEA1103TS
NAME
DIP20
SO20
SSOP20
PACKAGE
DESCRIPTION
plastic dual in-line package; 20 leads (300 mil)
plastic small outline package; 20 leads; body width 7.5 mm
plastic shrink small outline package; 20 leads; body width 5.3 mm
VERSION
SOT146-1
SOT163-1
SOT339-1
1999 Jan 27
2
 

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