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TEA1104 Datasheet(PDF) 6 Page - NXP Semiconductors |
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TEA1104 Datasheet(HTML) 6 Page - NXP Semiconductors |
6 / 16 page 1996 Feb 26 6 Philips Semiconductors Objective specification Cost effective battery monitor and fast charge IC for NiCd and NiMH chargers TEA1104; TEA1104T 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. Moreover, current regulators can be driven (see Fig.4). In non mains isolated systems, the current source can be switched via the auxiliary winding (see Fig.6) using the TEA140X power plugs. In the application section, an example is shown driving two LEDs that are indicating fast charging, protection during fast charging, full status and removed batteries. It is also possible to output the same information via one LED only. Fig.3 NiCd battery characteristics during a 1.25C charge cycle. handbook, full pagewidth MGE355 fast charge (Ifast) trickle charge (Ifast/40) t full detection Vbat Icharge Fig.4 Output drivers. handbook, full pagewidth MGE356 TEA1104 output output output LED TEA1104 LED TEA1104 LED LM317 |
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