Datasheet

71M6515H
Energy Meter IC
DATA SHEET
JULY 2011
Page: 6 of 60 © 2005−2011 Teridian Semiconductor Corporation 1.6
A Maxim Integrated Products Brand
2.5V VOLTAGE REGULATOR
PARAMETER
CONDITION
MIN
TYP
MAX
UNIT
Voltage Overhead V3P3D-V2P5
Reduce V3P3 until V2P5
drops 200mV
440 mV
PSRR ΔV2P5/ΔV3P3D
RESETZ=1, I
LOAD
=0
-3
+3
mV/V
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 production tested.
CRYSTAL OSCILLATOR
PARAMETER
CONDITION
MIN
TYP
MAX
UNIT
Maximum Output Power to Crystal
4
1
µW
Xin to Xout Capacitance
3
pF
Capacitance to DGND
Xin
Xout
5
5
pF
pF
Watchdog RTC_OK threshold
25
kHz
TEMPERATURE SENSOR
PARAMETER CONDITION MIN TYP MAX UNIT
Nominal Sensitivity (S
n
)
4
T
A=25ºC, TA=85ºC
Nominal relationship:
N(T)= S
n
*T+N
n
-900 LSB/ºC
Nominal Offset (N
n
)
4
40000
0
LSB
Temperature Error, relative to 25ºC error
n
S
NTN
TERR
))25()((
)25(
−
−−=
T
A = -40ºC to +85ºC -3
1
+3
1
ºC
1
Guaranteed by design; not production tested.