71M6515H
Energy Meter IC
DATA SHEET
MARCH 2008
THERMAL CHARACTERISTICS
CONDITION
PARAMETER
VALUE
UNIT
Thermal resistance, junction to ambient (RθJA
)
Air velocity 0 m/s. Part soldered to PCB.
63.7
°C/W
UART HOST INTERFACE
PARAMETER
CONDITION
MIN
TYP
MAX
UNIT
Baud Rate
19.2
-
38.4
kBaud
Character set
Data Format
binary
8N1
Byte-to-byte delay (6515H times out after Host sending data to
10
20
ms
maximum delay)
6515H
6515H sending data to
host
6515H has data ready
Data not ready
CE_ONLY = 1
CE_ONLY = 0 and
VAH_SELECT = 0
CE_ONLY = 0 and
VAH_SELECT = 1
Byte-to-byte delay
0
0.1
2
ms
ms
Response time to read command
0.5
Response time to read command when
71M6515H is post-processing data
40
80
ms
ms
ms
350
ADC CONVERTER, V3P3 REFERENCED
PARAMETER
CONDITION
MIN
TYP
MAX
UNIT
mV
peak
Usable Input Range (Vin-V3P3A)
-250
250
Vin = 200mV peak, 65Hz,
on VA, VB, or VC
Voltage to Current cross talk:
106 *Vcrosstalk
cos(∠Vin − ∠Vcrosstalk)
Vin
-10
40
+10
µV/V
Vcrosstalk = largest
measurement on IA, IB, or
IC
THD (First 10 harmonics)
250mV-pk
20mV-pk
Input Impedance
Temperature Coefficient of Input
Impedance
Vin=65Hz,
64kpts FFT, Blackman-
Harris window
Vin=65Hz
-75
-90
90
dB
dB
kΩ
Vin=65Hz
1.7
Ω/°C
LSB size
355
+884736
nV/LSB
LSB
Digital Full Scale
ADC Gain Error vs.
%Power Supply Variation
Vin=200mV pk, 65Hz
V3P3A=3.0V, 3.6V
PPM/
%
106 ΔNoutPK 357nV /VIN
50
100ΔV3P3A/3.3
Input Offset (Vin-V3P3A)
-10
+10
mV
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