ICM7211 데이터 시트보기 (PDF) - Intersil
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ICM7211 Datasheet PDF : 12 Pages
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ICM7211, ICM7212
Typical Performance Curves
30
LCD DEVICES, TEST CIRCUIT
DISPLAY BLANK, PIN 36 OPEN
25
TA = -20oC
20
TA = 25oC
15
10
TA = 70oC
5
1
2
3
4
5
6
7
VSUPP (V)
FIGURE 3. ICM7211 OPERATING SUPPLY CURRENT AS A
FUNCTION OF SUPPLY VOLTAGE
180 LCD DEVICES, TA = 25oC
150
COSC = 0pF
(PIN 36 OPEN)
120
COSC = 22pF
90
60
30
COSC = 220pF
0
1
2
3
4
5
6
VSUPP (V)
FIGURE 4. ICM7211 BACKPLANE FREQUENCY AS A
FUNCTION OF SUPPLY VOLTAGE
15 PIN 5 AT VDD, TA = 25oC
VSUPP = 6V
10
VSUPP = 5V
5
VSUPP = 4V
0
1
2
3
4
5
6
VO (V)
FIGURE 5. ICM7212 LED SEGMENT CURRENT AS A
FUNCTION OF OUTPUT VOLTAGE
12
SEGMENT OUTPUT AT +3V
TA = 25oC
10
8
6
4
2
0
0
1
2
3
4
5
6
VOLTAGE ON BRT PIN 5 (V)
FIGURE 6. ICM7212 LED SEGMENT CURRENT AS A
FUNCTION OF BRIGHTNESS CONTROL VOLTAGE
1800
1500
LED DEVICES, DISPLAY ALL EIGHTS
LED FORWARD VOLTAGE DROP
VFLED = 1.7V, PIN 5 AT VDD, TA = 25oC
1200
900
600
300
0
4
5
6
VSUPP (V)
FIGURE 7. ICM7212 OPERATING POWER (LED DISPLAY) AS A FUNCTION OF SUPPLY VOLTAGE
9-13
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