参数资料
型号: TC7126CKW713
厂商: Microchip Technology
文件页数: 6/26页
文件大小: 0K
描述: IC ADC 3 1/2DGT LCD DVR 44-MQFP
标准包装: 900
显示器类型: LCD
配置: 7 段显示
数字或字符: A/D,3.5 位数字
电流 - 电源: 55µA
电源电压: 9V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 44-QFP
供应商设备封装: 44-MQFP(10x10)
包装: 带卷 (TR)
TC7126/A
TABLE 1-1:
TC7126/A ELECTRICAL SPECIFICATIONS (CONTINUED)
Electrical Characteristics: V S = +9V, f CLK – 16kHz, and T A = +25°C, unless otherwise noted.
Symbol
V C
Parameter
Analog Common Voltage
Min
2.7
Typ
3.05
Max
3.35
Unit
V
Test Conditions
250k Ω Between Common and V+
LCD Drive
V SD
V BD
LCD Segment Drive Voltage
LCD Backplane Drive Voltage
4
4
5
5
6
6
V P-P
V P-P
V+ to V- = 9V
V+ to V- = 9V
Power Supply
I S
Power Supply Current
55
100
μ A
V IN = 0V, V+ to V- = 9V (Note 6)
Note 1:
2:
3:
4:
Input voltages may exceed the supply voltages, provided the input current is limited to ±100 μ A.
Dissipation rating assumes device is mounted with all leads soldered to printed circuit board.
Refer to “Differential Input” discussion.
Backplane drive is in phase with segment drive for “OFF” segment, 180° out of phase for “ON” segment. Frequency is
20 times conversion rate. Average DC component is less than 50mV.
5: See “Typical Application”.
6: During Auto-Zero phase, current is 10-20 μ A higher. A 48kHz ocillator increases current by 8 μ A (Typical). Common
current is not included.
DS21458C-page 6
? 2006 Microchip Technology Inc.
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