71M6541D Maxim, 71M6541D Datasheet - Page 141

• Manufacturer Part Number: 71M6541D
• Description: The 71M6541D/71M6541F/71M6541G/71M6542F/71M6542G are Teridian™ 4th-generation single-phase metering SoCs with a 5MHz 8051-compatible MPU core, low-power RTC with digital temperature compensation, flash memory, and LCD driver
• Manufacturer: Maxim

6.4.3 Battery Monitor
6.4.4 Temperature Monitor
Rev 2
Parameter
BV: Battery Voltage
(definition)
Measurement Error
Input impedance in
continuous measurement,
MSN mode.
V(VBAT_RTC)/I(VBAT_RTC)
Load applied with BCURR
IBAT(BCURR=1) - IBAT(BCURR=0)
Parameter
Temperature Measurement
Equation
Temperature Error
VBAT_RTC charge per
measurement
Duration of temperature
measurement after setting
TEMP_START
(see note 1)
Notes:
1. Guaranteed by design; not production tested.
100
⋅



VBAT
BV
Table 98: Battery Monitor Performance Specifications (TEMP_BAT= 1)
−
1



Condition
MSN mode, TEMP_PWR = 1
BRN mode,
TEMP_PWR=TEMP_BSEL
VBAT =
V3P3 = 3.3 V,
TEMP_BSEL = 0,
TEMP_PER = 111,
VBAT_RTC = 3.6 V,
V3P3 = 3.3 V
4.0 V
2.0 V
2.5 V
3.0 V
Condition
In MSN,
In BRN, TEMP_PWR
T
TEMP_BSEL = 0,
TEMP_PWR=0,
SLP Mode,
VBAT_RTC = 3.6 V
TEMP_PWR
TEMP_PER
SLP Mode,
VBAT_RTC = 3.6 V
Force V3P3D = 1.0 V
Table 99. Temperature Monitor
A
=+22°C
�������� = 0.325 ∙ ���������� + 0.00218 ∙ ������������
TEMP_PWR
= 7,
= 0,
=
�������� = 0.325 ∙ ���������� + 22
=1:
TEMP_BSEL:
���� = 3.291�� + ( ������������ − 142 ) ∙ 0.0255�� + ���������� ∙ 328����
���� = 3.3�� + ( ������������ − 142 ) ∙ 0.0246�� + ���������� ∙ 297����
71M6541D/F/G and 71M6542F/G Data Sheet
Min
-7.5
50
-5
-3
-3
1
Min
-2
2
− 0.609 ∙ ������������ + 64.4
Typ
16
15
Typ
100
Max
+2
60
Max
140
7.5
5
3
5
Unit
µC
ms
°C
°C
Unit
MΩ
µA
%
V
141