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TEA1102T データシート(PDF) 2 Page - NXP Semiconductors

部品番号 TEA1102T
部品情報  Fast charge ICs for NiCd, NiMH, SLA and LiIon
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メーカー  PHILIPS [NXP Semiconductors]
ホームページ  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TEA1102T データシート(HTML) 2 Page - NXP Semiconductors

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1999 Jan 27
2
Philips Semiconductors
Preliminary specification
Fast charge ICs for NiCd, NiMH, SLA and
LiIon
TEA1102; TEA1102T;
TEA1102TS
FEATURES
• Safe and fast charging of Nickel Cadmium (NiCd),
Nickel Metal Hydride (NiMH), Lithium Ion (LiIon), and
Sealed Lead Acid (SLA) batteries
• Three charge states for NiCd or NiMH; fast, top-off and
trickle or voltage regulation (optional)
• Two charge states for LiIon or SLA; current and voltage
limited
• 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 TEA1102x are fast charge ICs which are able fast
charge NiCd and NiMH, SLA and Lilon 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 TEA1102x
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.
Charging Lilon and SLA batteries is completely different.
When the batteries reach their maximum voltage
(adjustable), the TEA1102x switches over from current
regulation to voltage regulation. After a defined time
period, which is dependent on battery capacity and charge
current, charge is terminated. Due to small self discharge
rates of Lilon and SLA batteries, trickle charge can be
omitted.
Several LEDs, as well as a buzzer, can be connected to
the TEA1102x for indicating battery insertion, charge
states, battery full condition and protection mode.
The TEA1102x 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.
ORDERING INFORMATION
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TEA1102
DIP20
plastic dual in-line package; 20 leads (300 mil)
SOT 146-1
TEA1102T
SO20
plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
TEA1102TS
SSOP20
plastic shrink small outline package; 20 leads; body width 5.3 mm
SOT339-1


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