参数资料
型号: TC7117CPL
厂商: Microchip Technology
文件页数: 13/24页
文件大小: 0K
描述: IC ADC 3 1/2DGT LED DVR 40-DIP
标准包装: 10
显示器类型: LED
配置: 7 段显示
数字或字符: A/D,3.5 位数字
电流 - 电源: 800µA
电源电压: 5V
工作温度: 0°C ~ 70°C
安装类型: 通孔
封装/外壳: 40-DIP(0.600",15.24mm)
供应商设备封装: 40-PDIP
包装: 管件
产品目录页面: 673 (CN2011-ZH PDF)
其它名称: 158-1057
158-1057-ND
TC7116/A/TC7117/A
5.0
TC7117/TC7117A POWER
SUPPLIES
The TC7117/TC7117A are designed to operate from
±5V supplies. However, if a negative supply is not avail-
able, it can be generated with a TC7660 DC-to-DC con-
verter and two capacitors. Figure 5-1 shows this
application.
In selected applications, a negative supply is not
required. The conditions for using a single +5V supply
are:
1.
2.
3.
The input signal can be referenced to the center
of the Common mode range of the converter.
The signal is less than ±1.5V.
An external reference is used.
+5V
35
LED
V+
V REF +
36
Drive
TC7117 COM
32
TC7117A
V IN + 31
+
10 μ F
+
2
4
8
TC7660
5 (-5V)
V-
26
V IN -
GND
30
21
V IN
3 +
10 μ F
FIGURE 5-1:
Negative Power Supply
Generation with TC7660
? 2006 Microchip Technology Inc.
DS21457C-page 13
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