U642B
Electrical Characteristics (continued)
V
Batt
= 12 V, T
= 25°C, reference point is Pin 8 (see figure 3) unless otherwise specified.
amb
Parameters
Test Conditions / Pins
Pin 5
Symbol Min.
Typ.
Max.
Unit
WASH Input, R = 10 kW
5
Switching threshold/Hysteresis
Protection diode
V
–1.4/–5.4
V
V
5
I = –10 mA
I = 10 mA
5
V
–0.8
7.6
5
Switching Characteristics, R = 47 kW to 300 kW, I = –150 m A
4
4
Interval time
R = 0 kW
3
t
3.6
4
4.4
s
2
R = 10 kW
3
10.8
12
13.2
Prewash delay
t
100
ms
s
del
After-wipe-time
R = 130 kW
4
Pin 5
t
4.75
5.25
5.75
5
12
10
8
16
14
12
10
8
R
= 0
int
R
int
= 5 kW
6
R
int
= 10 kW
6
4
4
2
2
0
–40 –20
14005
0
0
20
40
60
80 100
0
2
4
6
8
10 12 14 16 18 20
Temperature ( °C )
14009
Interval resistor ( kW )
Figure 4. Interval pause = f ( T); Ct = 22 m F
Figure 6. Interval pause = f ( RINT); Ct = 22 m F
12
10
8
12
R
time
= 51 kW
R
time
= 51 kW
10
8
V
Batt
= 8 V
V
Batt
= 16 V
6
6
R
= 130 kW
= 300 kW
time
R
R
= 130 kW
= 300 kW
time
4
4
R
time
time
2
2
0
0
–40 –20
0
20
40
60
80 100
–40 –20
0
20
40
60
80 100
14006
Temperature ( °C )
14007
Temperature ( °C )
Figure 5. Afterwiping time = f ( T); Ct = 22 m F
Figure 7. Afterwiping time = f ( T); Ct = 22 m F
Rev. A4, 10-Apr-01
5 (7)
ATMEL [ ATMEL ]
