参数资料
型号: AS1118-BQFT
厂商: ams
文件页数: 6/21页
文件大小: 0K
描述: IC DRIVER 64LED W/DELAY 24-TQFN
标准包装: 1
系列: *
AS1118
Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s
7 Typical Operating Characteristics
R SET = 9.53k ?, V Rset = V DD ;
Figure 3. Display Scan Rate vs. Supply Voltage;
980
960
940
920
900
Figure 4. Display Scan Rate vs. Temperature;
980
960
940
920
900
880
Tamb = - 40°C
880
Vdd = 2.7V
Vdd = 4V
860
Tamb = + 25°C
860
Vdd = 5V
840
Tamb = + 85°C
840
Vdd = 5.5V
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
-40
-15
10
35
60
85
Vdd (V)
Figure 5. Segment Current vs. Temperature;
60
Tamb (°C)
Figure 6. Segment Current vs. R SET ;
50
Vseg
Vseg
= 4V; Vdd = 5V
= 3V; Vdd = 5V
50
40
Vseg
Vseg
= 2V; Vdd = 5V
= 1.7V; Vdd = 2.7V
40
30
30
20
20
Vseg = 1.7V; Vdd = 2.7V
10
0
Vseg = 1.7V; Vdd = 5V
Vseg = 3V; Vdd = 5V
Vseg = 4V; Vdd = 5V
10
0
-40
-15
10
35
60
85
0
10
20
30
40
50
60
70
80
90
Tamb (°C)
Figure 7. Segment Current vs. Supply Voltage;
60
Rset (kOhm)
Figure 8. Segment Current vs. V DD ; V Rset = 2.8V
50
50
40
45
40
35
Vseg
Vseg
Vseg
Vseg
= 1.7V
= 2V
= 2.3V
= 3.1V
30
30
25
20
20
10
0
Vseg = 1.7V
Vseg = 3V
Vseg = 4V
15
10
5
0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
2.7
3
3.3
3.6
3.9
4.2
Vdd (V)
Vdd (V)
www.austriamicrosystems.com/LED-Driver-ICs/AS1118
Revision 1.01
5 - 20
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