参数资料
型号: 78M6612SP-EVM-1
厂商: Maxim Integrated Products
文件页数: 33/46页
文件大小: 0K
描述: EVAL BOARD 78M6612
标准包装: 1
系列: *
DS_6612_001
4.4.10 VREF, VBIAS
Unless otherwise specified, VREF_DIS =0.
Table 17: VREF, VBIAS Performance Specifications
78M6612 Data Sheet
Parameter
VREF output voltage, VNOM(25)
Condition
Ta = 22oC
Min
1.193
Typ
1.195
Max
1.197
Unit
V
VREF chop step
50
mV
VREF output impedance
VREF_CAL =1,
I LOAD = 10 μA, -10 μA
2.5
VNOM definition 1
VREF temperature coefficients
TC1
TC2
VREF aging
VNOM ( T ) = VREF ( 22 ) + ( T ? 22 ) TC 1 + ( T ? 22 ) 2 TC 2
+7.0
-0.341
±25
V
μ V/oC
μ V/°C 2
ppm/
year
VREF(T) deviation from VNOM(T)
VREF ( T ) ? VNOM ( T ) 10 6
VNOM 62
Ta = -40oC to +85oC
-40
+40
ppm/o
C
VBIAS voltage
Ta = 25 oC
Ta = -40 oC to 85 oC
(-1%)
(-4%)
1.6
1.6
(+1%)
(+4%)
V
V
1
This relationship describes the nominal behavior of VREF at different temperatures.
4.4.11 LCD Drivers
The information in Table 18 applies to all COM and SEG pins.
Table 18: LCD Drivers Performance Specifications
Parameter
VLC2 Max Voltage
VLC1 Voltage,
? bias
? bias
VLC0 Voltage,
? bias
? bias
Condition
With respect to VLCD
With respect to 2*VLC2/3
With respect to VLC2/2
With respect to VLC2/3
With respect to VLC2/2
Min
-0.1
-4
-3
-3
-3
Typ
Max
0+.1
0
+2
+2
+2
Unit
V
%
%
%
%
VLCD is V3P3SYS in MISSION mode and VBAT in BROWNOUT and LCD modes.
Rev 2
33
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