ICM7211ALM44 INTERSIL [Intersil Corporation], ICM7211ALM44 Datasheet - Page 8

• Manufacturer Part Number: ICM7211ALM44
• Description: 4-Digit, ICM7211 (LCD) and ICM7212 (LED) Display Drivers
• Manufacturer: INTERSIL [Intersil Corporation]

Typical Performance Curves
FIGURE 3. ICM7211 OPERATING SUPPLY CURRENT AS A
FIGURE 5. ICM7212 LED SEGMENT CURRENT AS A
30
25
20
15
10
15
10
5
5
0
1
1
LCD DEVICES, TEST CIRCUIT
DISPLAY BLANK, PIN 36 OPEN
PIN 5 AT V
FUNCTION OF SUPPLY VOLTAGE
FUNCTION OF OUTPUT VOLTAGE
FIGURE 7. ICM7212 OPERATING POWER (LED DISPLAY) AS A FUNCTION OF SUPPLY VOLTAGE
2
2
DD
V
, T
SUPP
A
3
3
= 25
= 4V
o
T
V
A
C
SUPP
V
V
= 25
O
SUPP
4
4
(V)
o
(V)
C
V
1800
1500
1200
SUPP
T
= 5V
900
600
300
A
T
0
A
= -20
5
5
= 70
= 6V
LED DEVICES, DISPLAY ALL EIGHTS
LED FORWARD VOLTAGE DROP
V
FLED
o
o
C
C
= 1.7V, PIN 5 AT V
6
ICM7211, ICM7212
4
6
7
9-13
V
SUPP
DD
FIGURE 4. ICM7211 BACKPLANE FREQUENCY AS A
FIGURE 6. ICM7212 LED SEGMENT CURRENT AS A
, T
5
A
(V)
180
150
120
12
10
= 25
8
6
4
2
0
90
60
30
0
0
1
o
SEGMENT OUTPUT AT +3V
T
A
C
LCD DEVICES, T
= 25
FUNCTION OF SUPPLY VOLTAGE
FUNCTION OF BRIGHTNESS CONTROL VOLTAGE
o
1
C
2
6
(PIN 36 OPEN)
VOLTAGE ON BRT PIN 5 (V)
C
OSC
2
A
3
= 25
= 0pF
V
o
C
SUPP
3
4
C
OSC
(V)
C
OSC
= 22pF
4
= 220pF
5
5
6
6