U2403B
| Model | U2403B |
| Description | Charge Timer |
| PDF file | Total 12 pages (File size: 167K) |
| Chip Manufacturer | TEMIC |
U2403B
start
no
Battery
inserted
Turn on V
S
> 3.5 V
V
3
= 1.5 V
LED
2
“ON”
Timer start
Test Open
GND
V
S
mode
Divider
2
26
2
17
2
8
T
j
> T
max
no
V
1
< 3.0 V
no
yes
yes
V
3
[
0 V
Interrupt charging
LED
2
“OFF”
Interrupt
no
T
j
< T
max
yes
no
V
1
> V
S
yes
V
3
= 0 V
Continuous charging
LED
2
“ON”
Continuous timing
no
End of
timing
yes
LED
2
“OFF”
LED
1
“ON”
Trickle charge mode
V
3
= 100 mV
Battery
removed
yes
Undervoltage reset
95 9624
no
Figure 3. Flow chart
4 (12)
TELEFUNKEN Semiconductors
Rev. A1, 20-Mar-96
