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参数资料
| 型号： | AS1107 DB |
| 厂商： | ams |
| 文件页数： | 15/22页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO AS1107 |
| 标准包装： | 1 |
| 输出及类型： | 8，非隔离 |
| 输出电压： | 2.3V |
| 特点： | 8 位数，7 段显示器 |
| 输入电压： | 1.5 ~ 3.5 V |
| 已供物品： | 板 |
| 已用 IC / 零件： | AS1107 |
AS1106, AS1107
Datasheet - A p p l i c a t i o n I n f o r m a t i o n
9 Application Information
9.1 Supply Bypassing and Wiring
In order to achieve optimal performance the AS1106/AS1107 should be placed very close to the LED display to minimize effects of
electromagnetic interference and wiring inductance.
Furthermore, it is recommended to connect a 10μF electrolytic and a 0.1μF ceramic capacitor between pins V DD and GND to avoid power
Note: Both GND pins must be connected to ground.
9.2 Selecting R SET Resistor Value and Using External Drivers
Brightness of the display segments is controlled via R SET . The current that flows between V DD and I SET defines the current that flows through
the LEDs.
Segment current is about 200 times the current in I SET . Typical values for R SET for different segment currents, operating voltages, and LED
voltage drop (V LED ) are given in Tables 19 - 23. The maximum current the AS1106/AS1107 devices can drive is 40mA. If higher currents are
needed, external drivers must be used, in which case it is no longer necessary that the devices drive high currents.
In cases where the devices only drive a few digits, Table 16 specifies the maximum currents, and R SET must be set accordingly.
Note: The display brightness can also be logically controlled (see Intensity Control Register (0xXA) on page 12).
Table 19. R SET vs. Segment Current and LED Forward Voltage, V DD = 2.7V
I SEG (mA)
40
30
20
10
1.5
5k Ω
6.9k Ω
10.7k Ω
22.2k Ω
V LED (V)
2.0
4.4k Ω
5.9k Ω
9.6k Ω
20.7k Ω
Table 20. R SET vs. Segment Current and LED Forward Voltage, V DD = 3.3V
I SEG (mA)
40
30
20
10
1.5
6.7k Ω
9.1k Ω
13.9k Ω
28.8k Ω
V LED (V)
2.0
6.4k Ω
8.8k Ω
13.3k Ω
27.7k Ω
2.5
5.7k Ω
8.1k Ω
12.6k Ω
26k Ω
Table 21. R SET vs. Segment Current and LED Forward Voltage, V DD = 3.6V
I SEG (mA)
40
30
20
10
1.5
7.5k Ω
10.18k Ω
15.6k Ω
31.9k Ω
2.0
7.2k Ω
9.8k Ω
15k Ω
31k Ω
V LED (V)
2.5
6.6k Ω
9.2k Ω
14.3k Ω
29.5k Ω
3.0
5.5k Ω
7.5k Ω
13k Ω
27.3k Ω
Table 22. R SET vs. Segment Current and LED Forward Voltage, V DD = 4.0V
I SEG (mA)
40
30
20
10
1.5
8.6k Ω
11.6k Ω
17.7k Ω
36.89k Ω
2.0
8.3k Ω
11.2k Ω
17.3k Ω
35.7k Ω
V LED (V)
2.5
7.9k Ω
10.8k Ω
16.6k Ω
34.5k Ω
3.0
7.6k Ω
9.9k Ω
15.6k Ω
32.5k Ω
3.5
5.2k Ω
7.8k Ω
13.6k Ω
29.1k Ω
Revision 2.28
14 - 21
相关PDF资料 |
PDF描述 |
|---|---|
| AS1109 EB | BOARD EVAL AS1109 |
| AS1110 EB | BOARD EVAL AS1110 |
| AS1112 EB | BOARD EVAL AS1112 |
| AS1115 DB-YELLOW | BOARD DEMO AS1115 YELLOW |
| AS1116 DB-YELLOW | BOARD DEMO AS1116 YELLOW |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AS1107PL | 功能描述:IC LED 8-DIGIT DRIVER 24-PDIP RoHS:是 类别:集成电路 (IC) >> PMIC - 显示器驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 显示器类型:真空荧光 (VF) 配置:5 x 7（矩阵） 接口:串行 数字或字符:- 电流 - 电源:3.5mA 电源电压:2.7 V ~ 3.6 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SSOP（0.154"，3.90mm 宽） 供应商设备封装:16-QSOP 包装:带卷 (TR) |
| AS1107PL1 | 制造商:AMSCO 制造商全称:austriamicrosystems AG 功能描述:8-Digit LED Display Drivers |
| AS1107WL | 功能描述:IC DRIVER LED 8-DIGIT 24-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 显示器驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 显示器类型:真空荧光 (VF) 配置:5 x 7（矩阵） 接口:串行 数字或字符:- 电流 - 电源:3.5mA 电源电压:2.7 V ~ 3.6 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SSOP（0.154"，3.90mm 宽） 供应商设备封装:16-QSOP 包装:带卷 (TR) |
| AS1107-WL | 功能描述:LED显示驱动器 RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| AS1107-WL-T | 功能描述:LED显示驱动器 RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
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