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TEA1103T Datasheet

Part NameTEA1103T Philips
Philips Electronics Philips
DescriptionFast charge ICs for NiCd and NiMH batteries
TEA1103TS image

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.

• 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 (−1⁄4%) 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.


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