Datenblatt-Suchmaschine für elektronische Bauteile |
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SS6783A Datenblatt(PDF) 8 Page - Silicon Standard Corp. |
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SS6783A Datenblatt(HTML) 8 Page - Silicon Standard Corp. |
8 / 12 page www.SiliconStandard.com 8 of 12 SS6783A(G) 1/11/2005 Rev.2.10 The functions and charging state control mentioned above are illustrated in the function flow-chart of the SS6 783A (Fig. 12) DESIGN GUIDE Battery Voltage Measurement The SS6783A measures the battery voltage through VBT pin, which is connected to the battery positive terminal through a resistor-divider network, as shown in Fig. 11. VBAT RA RB C5 7 R5 100k C6 SS6 783A VBT + Fig. 11 Battery Voltage Divider The suggested divider resistance of RA and RB for the corresponding number of battery cells are as below: TABLE 1 BATTERY CELLS RA/RB RA (k Ω) RB (k Ω) 2~4 2 240 120 3~6 3.3 300 91 4~8 4.9 300 62 5~10 6.4 300 47 6~12 7.8 310 39 8~16 10.8 390 36 Setting the Period of Safety Timer The SS6783A provides a method for linearly adjusting the period of the safety timer with an external resistor connected from TIMER pin to GND. The relation between safety timer length and the external resistor (RTIMER) is shown in Fig. 13. The table following shows the resistor values for some of the commonly chosen safety timer periods. Also shown in the table are their corresponding oscillator frequencies. 0 100 200 300 400 500 0 200 400 600 800 Safety Timer (min.) Fig. 13 Safety Timer vs. RTIMER |
Ähnliche Teilenummer - SS6783A |
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Ähnliche Beschreibung - SS6783A |
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