U2402B Ver la hoja de datos (PDF) - Temic Semiconductors
Número de pieza
componentes Descripción
Fabricante
U2402B Datasheet PDF : 17 Pages
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U2402B
Start
turn on
Power on reset
Charge stop
LED1 blinking
LED2 on
Cell insertion
no
Cell in
permissible
no
yes
temperature
range ?
Cell
yes
inserted ?
*)
Cell insertion reset
LED1 on
LED2 off
Cell in
no
permissible
temperature
range ?
yes
VBatt
v4V
no
yes
Charging starts with
- dV monitoring
LED2 blinking
– dV
no
switch off
yes
no
Cell
yes
inserted ?
*)
*) 70 mV > VBatt < 5 V
yes
– dV and d2 V/dt2
monitoring begins
yes
Cell in
permissible
yes
temperature
range ?
no
Charging
time reaches
no
5 min. ?
no
Cell
inserted ?
*)
93 7696 e
LED1 on
– dV
no
disconnect ?
yes
LED2 on
Trickle charging
with 1/256 IO
yes
Cell
inserted ?
*)
no
Figure 4. Flow chart
d2 V/dt2
disconnect ? no
yes
LED2 on
Top-off charging
with 1/4 IO
yes
Timer 20 min exceeded
6 (17)
TELEFUNKEN Semiconductors
Rev. A3, 14-Nov-96
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