Datasheet

71M6511/71M6511H
Single-Phase Energy Meter IC
DATA SHEET
NOVEMBER 2010
Page: 90 of 98 © 2005–2010 Teridian Semiconductor Corporation V2.7
A Maxim Integrated Products Brand
LCD BOOST
PARAMETER
CONDITION
MIN
TYP
MAX
UNIT
VDRV Frequency
OSC/2
Hz
VDRV Sink Current
Vol=1.5V
1.2
2.75
mA
VDRV Source Current
Voh=1.5V
1.2
2.6
mA
VLCD Target Voltage
4.5
5.5
V
VLCD Input Current
VLCD=5.0V, LCD_FS=1F,
LCD_MODE=0,1,2,3
LCD_BSTEN=1
450 μA
LCD DRIVERS
Applies to all COM and SEG pins. Unless otherwise stated, VLCD=5.0V, LCD_FS=1F
PARAMETER
CONDITION
MIN
TYP
MAX
UNIT
VLC0 Max Voltage (
LCD_FS
=1F) With respect to VLCD -0.2 0 V
VLC0 Min Voltage (LCD_FS =00)
With respect to VLCD*0.7
-0.2
0.2
V
VLC1 Voltage,
1/3 bias
½ bias
With respect to 2*VLCD/3
With respect to VLCD/2
-10
-10
+10
+10
%
%
VLC0 Voltage,
1/3 bias
½ bias
With respect to VLCD/3
With respect to VLCD/2
-15
-10
+15
+10
%
%
Output Impedance
∆I
LOAD=10µA
30 kΩ
RTC
PARAMETER
CONDITION
MIN
TYP
MAX
UNIT
Range for date
2000
-
2255
year
RESETZ
PARAMETER
CONDITION
MIN
TYP
MAX
UNIT
Reset pulse width
5
µs
Reset pulse fall time
1
1
µs
1
Guaranteed by design, not subject to test.
COMPARATORS
PARAMETER
CONDITION
MIN
TYP
MAX
UNIT
Offset Voltage
V1-VBIAS
-20
15
mV
Hysteresis Current
V1
Vin = VBIAS - 100mV 0.8 1.2 μA
Response Time
V1
+100mV overdrive
2
15
μs
WD Disable Threshold (V1-V3P3A)
-400
-10
mV