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CXA2108AQ 参数 Datasheet PDF下载

CXA2108AQ图片预览
型号: CXA2108AQ
PDF下载: 下载PDF文件 查看货源
内容描述: 恒流驱动器,用于全彩LED显示屏 [Constant-Current Driver for Full Color LED Display]
分类和应用: 驱动器
文件页数/大小: 27 页 / 282 K
品牌: SONY [ SONY CORPORATION ]
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CXA2108AQ  
Rext [k]  
2.0  
2.0  
2.0  
2.0  
2.5  
2.5  
2.5  
2.5  
3.0  
3.0  
3.0  
3.0  
3.5  
3.5  
3.5  
3.5  
4.0  
4.0  
4.0  
4.0  
1
D9  
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D8  
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Io (FFh) [mA]  
21.7  
Istb [mA]  
22.3  
38.1  
53.8  
69.6  
18.4  
31.1  
43.7  
56.3  
15.9  
26.4  
36.9  
47.4  
14.0  
23.1  
32.1  
41.1  
12.7  
20.6  
28.4  
36.3  
Pstb [W]  
0.111  
0.190  
0.269  
0.348  
0.092  
0.155  
0.218  
0.281  
0.079  
0.132  
0.184  
0.237  
0.070  
0.115  
0.160  
0.205  
0.063  
0.103  
0.142  
0.182  
Po (max) [W]  
1.39  
1.31  
1.23  
1.15  
1.41  
1.34  
1.28  
1.22  
1.42  
1.37  
1.32  
1.26  
1.43  
1.38  
1.34  
1.29  
1.44  
1.40  
1.36  
1.32  
43.3  
65.0  
1
86.7  
17.3  
34.7  
52.0  
69.3  
14.4  
28.9  
43.3  
57.8  
12.4  
24.8  
37.1  
49.5  
10.8  
21.7  
32.5  
43.3  
Absolute maximum rating exceeded.  
Table 2. Drive Current Setting and Power Consumption (when D0 to D7 = FFh)  
Rext  
: External resistor that sets the DAC reference current (Iref)  
D9, D8 : Data that sets the maximum drive current (Io (FFh))  
Iref  
: DAC reference current  
Iref [mA] = 1.3 [V]/Rext [k]/24  
Io (FFh) : Maximum drive current that can be set by D0 to D7  
Io (FFh) [mA] = Iref × (2 × D9 + D8 + 1) × 800  
Istb  
: Standby current (Internal current consumption excluding the driver block)  
Istb [mA] = 3.06 + 24 × Iref × (16/3 + 24.25 × (2 × D9 + D8 + 1))  
: Standby power (Internal power consumption excluding the driver block, Vcc = 5 V)  
Pstb [W] = 5 [V] × Istb [mA]/1000  
Pstb  
Po (max): Maximum power that can be consumed by the driver block  
Po (max) [W] = 1.5 [W] – Pstb [W]  
Note) Istb, Pstb and Po (max) are the values when D0 to D7 = 11111111 (FFh).  
In addition, these values assume the case where all channels are set to the same drive current.  
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