71M6511 Datasheet, PDF (86/95 Pages) Teridian Semiconductor Corporation – Single-Phase Energy Meter IC

71M6511/71M6511H
Single-Phase Energy Meter IC
DATA SHEET
AUGUST 2007
VREF, VBIAS
Unless otherwise specified, VREF_DIS=0
PARAMETER
VREF output voltage, VNOM(25)
CONDITION
Ta = 22ºC
MIN
1.193
TYP
1.195
MAX
1.197
VREF chop step
VREF output impedance
VNOM definition^A
40
VREF_CAL = 1,
ILOAD = 10µA, -10µA
2.5
VNOM(T) = VREF(22) + (T–22)TC1 + (T–22)²TC2
-- If TRIMBGA and TRIMBGB available (6511H) --
VREF temperature coefficients
TC1 (linear)
x(33-0.28y) + 0.33y + 7.9
TC2 (quadratic)
x(0.02-0.0002y) – 0.46
TRIMBGA, TRIMBGB, TRIMM[2:0]: See
TRIMSEL, TRIM registers
where x = 0.1TRIMBGB - 0.14(TRIMM[2:0]+0.5),
y
=
TEMP_ NOM
4.7404
− 500TRIM
900
_
BGA− 370000
VREF(T) deviation from VNOM(T)
VREF(T ) − VNOM(T )
10⁶
VNOM
max(|T − 22 |,40)
-10
10
-- If TRIMBGA and TRIMBGB not available (6511) --
VREF temperature coefficients
TC1 (linear)
TC2 (quadratic)
VREF(T) deviation from VNOM(T)
VREF(T ) − VNOM(T )
10⁶
VNOM
max(|T − 22 |,40)
Ta = -40ºC to +85ºC
7.0
-0.341
-40
+40
VREF aging
Ta = 25ºC
±25
VBIAS output voltage
Ta = 25ºC
Ta = -40ºC to 85ºC
(-1%)
1.5
(-2%)
1.5
VBIAS output impedance
ILOAD = 1mA, -1mA
240
A _{This relationship describes the nominal behavior of VREF at different temperatures.}
(+1%)
(+2%)
500
UNIT
V
mV
kΩ
V
µV/°C
µV/°C²
ppm/ºC
µV/ºC
µV/°C²
ppm/ºC
ppm/
year
V
V
Ω
CRYSTAL OSCILLATOR
Crystal is disconnected. Test load is series 200pF, 100kΩ connected between DGND and XOUT.
PARAMETER
Maximum Output Power to Crystal⁴
XIN to XOUT Capacitance¹
Capacitance to DGND¹
XIN
XOUT
CONDITION
Crystal connected
MIN
TYP
Watchdog RTC_OK threshold
MAX
1
3
5
5
25
UNIT
µW
pF
pF
pF
kHz
Page: 86 of 95
© 2005-2007 TERIDIAN Semiconductor Corporation
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