71M6543F Datasheet, PDF (137/157 Pages) Maxim Integrated Products – Selectable Gain of 1 or 8 for One Current Energy Meter ICs Metrology Compensation

71M6543F/H and 71M6543G/GH Data Sheet
6.4.4 Temperature Monitor
Table 94: Temperature Monitor
Parameter
Temperature Measurement
Equation for 71M6543F and
71M6543G
(see notes 2 and 4)
Temperature Measurement
Equation for 71M6543H and
71M6543GH
(see notes 3 and 4)
Condition
In MSN, TEMP_PWR=1:
Min
Typ
Max
𝑇𝑒𝑚𝑝 = 0.325 ∙ 𝑆𝑇𝐸𝑀𝑃 + 22
In BRN, TEMP_PWR = TEMP_BSEL:
𝑇𝑒𝑚𝑝 = 0.325 ∙ 𝑆𝑇𝐸𝑀𝑃 + 0.00218 ∙ 𝐵𝑆𝐸𝑁𝑆𝐸² − 0.609 ∙ 𝐵𝑆𝐸𝑁𝑆𝐸 + 64.4
In MSN, TEMP_PWR=1:
If STEMP ≤ 0:
𝑇𝑒𝑚𝑝 = 0.325 ∙ 𝑆𝑇𝐸𝑀𝑃 + 22
If STEMP > 0:
63 ∙ 𝑆𝑇𝐸𝑀𝑃
𝑇𝑒𝑚𝑝 = _{𝑇𝐸𝑀𝑃_85} + 22
In BRN, TEMP_PWR = TEMP_BSEL:
If STEMP ≤ 0:
𝑇𝑒𝑚𝑝 = 0.325 ∙ 𝑆𝑇𝐸𝑀𝑃 + 0.00218 ∙ 𝐵𝑆𝐸𝑁𝑆𝐸² − 0.609 ∙ 𝐵𝑆𝐸𝑁𝑆𝐸 + 64.4
If STEMP > 0:
𝑇𝑒𝑚𝑝
=
63 ∙ 𝑆𝑇𝐸𝑀𝑃
𝑇𝐸𝑀𝑃_85
+
0.00218
∙
𝐵𝑆𝐸𝑁𝑆𝐸²
−
0.609
∙
𝐵𝑆𝐸𝑁𝑆𝐸
+
64.4
Temperature Error (71M6543)
(see note 1)
TA = 22⁰C
-2
2
VBAT_RTC charge per
TEMP_BSEL = 0,
measurement
TEMP_PWR=0,
SLP Mode,
16
VBAT_RTC = 3.6 V
Duration of temperature
measurement after setting
TEMP_START
(see note 1)
15
60
Notes:
1. Guaranteed by design; not production tested.
2. For the 71M6543F and 71M6543G, TEMP_85 fuses read 0.
3. For the 71M6543H and 71M6543GH, TEMP_85 fuses ≠ 0.
4. The coefficients provided in these equations are typical.
Unit
°C
°C
µC
ms
v1.2
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