71M6533 Datasheet, PDF (113/132 Pages) Teridian Semiconductor Corporation – Energy Meter IC

FDS_6533_6534_004
71M6533/G/H and 71M6534/H Data Sheet
6.4.14 Temperature Sensor
Table 83 shows the performance for the temperature sensor. The LSB values do not include the 8-bit left
shift at CE input.
Table 83: Temperature Sensor Performance Specifications
Parameter
Condition
Nominal relationship: N(T) = S_n*(T-T_n) + N_n, T_n = 25ºC
Nominal
Sensitivity (S_n)²
[M40MHZ, M26MH] =
[00], [10], or [11]
FIR_LEN=0
FIR_LEN=1
FIR_LEN=2
S_n
=
−0.00109 ⋅ 

L
3
³

[M40MHZ, M26MHZ] =
[01]
FIR_LEN=0
FIR_LEN=1
FIR_LEN=2
(L=138)
(L=288)
(L=384)
(L=186)
(L=384)
(L=588)
Nominal Offset
(N_n) ²
N_n
=
0.508 ⋅ 

L _³
3_
[M40MHZ, M26MHZ] =
[00], [10], or [11]
[M40MHZ, M26MHZ] =
[01]
Temperature Error ^†
ERR
=T
−
(N (T )

−
N_n
)


S_n

FIR_LEN=0 (L=138)
FIR_LEN=1 (L=288)
FIR_LEN=2 (L=384)
FIR_LEN=0 (L=186)
FIR_LEN=1 (L=384)
FIR_LEN=2 (L=588)
T_n = 25°C,
T = -40ºC to +85ºC
Min Typ Max Unit
-106
-964
-2286
-260
-2286
-8207
49447
449446
1065353
121071
1065353
3825004
LSB/ºC
LSB
-10¹
+10¹ ºC
† Temperature error is calculated with the value N_n, which is measured at T_n during meter calibration and
stored in MPU or CE for use in temperature calculations.
1 _{Guaranteed by design; not production tested.}
2 _{This specification defines a nominal relationship rather than a measured parameter. Correct circuit}
operation will be verified with other specs that use this nominal relationship as a reference.
Rev 2
113