71m6534h-igt Maxim Integrated Products, Inc., 71m6534h-igt Datasheet - Page 108

• Manufacturer Part Number: 71m6534h-igt
• Description: Energy Meter Ic
• Manufacturer: Maxim Integrated Products, Inc.

71M6533/71M6534 Data Sheet
5.4.15 VREF and VBIAS
Table 79
VREF_DIS = 0.
a
b
108
VREF output voltage, VREF(22)
VREF chop step
VREF power supply sensitivity
VREF input impedance
VREF output impedance
VNOM definition
Definitions
VNOM temperature coefficients
VREF(T) deviation from VNOM(T)
VNOM temperature coefficients:
VREF(T) deviation from VNOM(T)
VREF aging
VBIAS Voltage
This relationship describes the nominal behavior of VREF at different temperatures.
VREF
VREF
TEMP
ΔVREF / ΔV3P3A
TC1
TC2
VNOM
VNOM
(
(
T
T
22
shows the performance specifications for VREF and VBIAS. Unless otherwise specified,
TC1
TC2
)
)
is the value read from the temperature sensor at 22°C.
VNOM
VNOM
(
(
T
T
Parameter
)
)
a
(
(
T
T
)
)
If TRIMBGA and TRIMBGB are not available (71M6533/71M6534)
If TRIMBGA and TRIMBGB are available (71M6533H/71M6534H)
max(
max(
© 2007-2009 TERIDIAN Semiconductor Corporation
T
T
10
10
Table 79: VREF Performance Specifications
6
6
22
22
b
,
,
40
40
)
)
Ta = 22ºC
V3P3A = 3.0 to 3.6 V
VREF_DIS = 1,
VREF = 1.3 to 1.7 V
CAL =1,
I
VNOM
Ta = 25 °C
Ta = -40 °C to 85 °C
LOAD
= 10 µA, -10 µA
(
γ = 0.1·TRIMBGB - 0.143·(TRIMM+0.5),
Condition
T
)
VREF
η+ 19γ - 0.065γξ +0.34ξ + 8.0
TEMP
0.015γ - 0.0013ξ – 0.35
η = (56.2 – TRIMT)·0.55
(
3.18·(52.46-TRIMT)
22
22
)
(
500
T
-0.444
22
TRIMBGA
900
)
1.193
(-1%)
(-4%)
TC
Min
-1.5
100
-15
-40
1
10
6
370000
1.195
(
Typ
T
1.6
1.6
25
22
FDS_6533_6534_004
)
2
TC
(+1%)
(+4%)
1.197
Max
+15
+40
1.5
2.5
2
40
10
6
µV/ºC
µV/ºC
PPM/ºC
PPM/ºC
µV/°C
µV/ºC
mV/V
PPM/
Unit
year
mV
kΩ
kΩ
V
V
V
V
v1.1
2
2