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| U2405B |
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 TEMIC
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6 page 
U2405B TELEFUNKEN Semiconductors Rev. A2, 14-Nov-96 6 (17) tch>10 min Batt. inserted *) Reset LED1,2 off Power on reset Temp. range ? LED1 on LED2 blinking VBatt > 1.6 V Fast charge begins LED2 blinking VBatt ≤ 4 V –dV switch off Batt. inserted *) LED1 blinking Temp. range ? no Charge stop LED1 off LED2 blinking LED1 blinking LED2 off no Charge time t1>5 min? –dV and d2V/dt2 monitoring activated Batt temp range? LED1 on –dV disconnect LED2 on Trickle charge 1/256 IO Batt. inserted *) Batt. inserted *) LED2 on Top off charge 1/4 IO d2V/dt2 disconnect ? t2> 20 min Start 95 10625 Preformation current I RB1 no yes no no yes no yes yes no no no no no yes yes *) 70 mV > VBatt < 5 V yes no yes yes yes yes yes no no Figure 4. Flow chart |
