71M6543G Maxim, 71M6543G Datasheet - Page 137

• Manufacturer Part Number: 71M6543G
• Description: The 71M6543F/71M6543H are Teridian's 4th-generation polyphase metering system-on-chips (SoCs) with a 5MHz, 8051-compatible MPU core, low-power real-time clock (RTC) with digital temperature compensation, flash memory, and LCD driver
• Manufacturer: Maxim

6.4.4 Temperature Monitor
v1.2
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)
Temperature Error (71M6543)
(see note 1)
VBAT_RTC charge per
measurement
Duration of temperature
measurement after setting
TEMP_START
(see note 1)
Notes:
1.
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.
Guaranteed by design; not production tested.
© 2008–2011 Teridian Semiconductor Corporation
Table 94: Temperature Monitor
Condition
In MSN, TEMP_PWR=1:
In BRN, TEMP_PWR
In MSN, TEMP_PWR=1:
If STEMP ≤ 0:
If STEMP > 0:
In BRN, TEMP_PWR
If STEMP ≤ 0:
If
T
TEMP_BSEL = 0,
TEMP_PWR=0,
SLP Mode,
VBAT_RTC = 3.6 V
A
STEMP
= 22⁰C
�������� = 0.325 ∙ ���������� + 0.00218 ∙ ������������
�������� = 0.325 ∙ ���������� + 0.00218 ∙ ������������
�������� =
> 0:
63 ∙ ����������
��������_85
�������� = 0.325 ∙ ���������� + 22
�������� = 0.325 ∙ ���������� + 22
=
=
�������� =
+ 0.00218 ∙ ������������
TEMP_BSEL:
TEMP_BSEL:
71M6543F/H and 71M6543G/GH Data Sheet
63 ∙ ����������
��������_85
Min
-2
2
2
2
− 0.609 ∙ ������������ + 64.4
+ 22
− 0.609 ∙ ������������ + 64.4
− 0.609 ∙ ������������ + 64.4
Typ
16
15
Max
60
2
Unit
µC
ms
°C
°C
137