参数资料
型号: TC7129CKW
厂商: Microchip Technology
文件页数: 4/28页
文件大小: 0K
描述: IC ADC 4 1/2DGT LCD DVR 44-MQFP
标准包装: 96
显示器类型: LCD
配置: 7 段显示
数字或字符: A/D,4.5 位数字
电流 - 电源: 800µA
电源电压: 6 V ~ 12 V
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-PQFP(10x10)
包装: 托盘
TC7129
TC7129 ELECTRICAL SPECIFICATIONS (CONTINUED)
Electrical Characteristics: V+ to V– = 9V, V REF = 1V, T A = +25°C, f CLK = 120 kHz, unless otherwise indicated.
Pin numbers refer to 40-pin DIP.
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
Power
V COM
DGND
I S
Common Voltage
Common Sink Current
Common Source Current
Digital Ground Voltage
Sink Current
Supply Voltage Range
Supply Current Excluding
2.8
4.5
6
3.2
0.6
10
5.3
1.2
9
0.8
3.5
5.8
12
1.3
V
mA
μ A
V
mA
V
mA
V+ to pin 28
Δ Common = +0.1V
Δ Common = -0.1V
V+ to pin 36, V+ to V– = 9V
Δ DGND = +0.5V
V+ to V–
V+ to V– = 9V
Common Current
f CLK
Clock Frequency
120
360
kHz
V DISP Resistance
Low Battery Flag Activation
6.3
50
7.2
7.7
k Ω
V
V DISP to V+
V+ to V–
Voltage
Digital
Continuity Comparator Threshold
Voltages
Pull-down Current
“Weak Output” Current
Sink/Source
Pin 22 Source Current
Pin 22 Sink Current
100
200
200
2
3/3
3/9
40
3
400
10
mV
mV
μ A
μ A
μ A
μ A
μ A
V OUT pin 27 = High
V OUT pin 27 = Low
Pins 37, 38, 39
Pins 20, 21 sink/source
Pin 27 sink/source
Note 1:
Input voltages may exceed supply voltages, provided input current is limited to ±400 μ A. Currents above
this value may result in invalid display readings, but will not destroy the device if limited to ±1 mA.
Dissipation ratings assume device is mounted with all leads soldered to printed circuit board.
DS21459D-page 4
? 2006 Microchip Technology Inc.
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