71M6515H PDF даташит
Спецификация 71M6515H изготовлена «TERIDIAN Semiconductor» и имеет функцию, называемую «Energy Meter IC». |
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Детали детали
Номер произв | 71M6515H |
Описание | Energy Meter IC |
Производители | TERIDIAN Semiconductor |
логотип |
30 Pages
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GENERAL DESCRIPTION
The 71M6515H is a high-accuracy analog front end
(AFE) IC that provides measurements for four-
quadrant 3-phase metering. The combination of a
21-bit sigma-delta A/D converter with a six-input
analog front end, a thermally compensated high pre-
cision reference and a compute engine results in
high accuracy and wide dynamic range. Patented
Single-Converter Technology™ reduces cross talk
and cost. This IC also provides RTC and battery
backup for time-of-use (TOU) metering.
Battery
RTC
COMPUTE
ENGINE
VOLTAGE
REFERENCE
RAM
CONTROL
TERIDIAN 71M6515H
UART, IRQZ
SSI
HOST
PRO-
CESSOR
DIO
Figure 1: Meter block diagram
As shown in the block diagram (Figure 1), the host
processor communicates with the 71M6515H
through a UART interface using the programmable
IRQZ interrupt. The 71M6515H calculates and accu-
mulates meter measurements for each accumulation
interval. A high-speed synchronous serial port (SSI)
is provided to facilitate high-end metering. Integrated
rectifying functions on the battery backup circuit
enable minimal external component usage and
minimum back-up current. Also, eight multi-purpose
pins are provided for control of peripherals.
www.DataSheet4U.com
71M6515H
Energy Meter IC
DATA SHEET
MARCH 2008
FEATURES
High Accuracy
• < 0.1% Wh accuracy over temperature and
2000:1 range
• Exceeds IEC62053/ANSIC12.20 specifications.
• Precision ultra-stable voltage reference
(10PPM/°C)
• Single Converter Technology™ reduces cross
talk and power consumption
• Six sensor inputs—referenced to V3P3
• Compatible with CTs, resistive shunts and
Rogowski Coil sensors
• -90dB THD max.
• Digital temperature compensation
• Sag detection
• Measures Wh, VARh, VAh, Vrms, Irms, V-to-V
phase and load angle on each phase
• Four-quadrant metering.
• Four low-jitter pulse outputs from selectable
measurements
• Four pulse count registers
• Selectable default status for pulse pins
• Same calibration data for 46Hz to 64Hz line
frequency
• Broad CT phase compensation (±7deg)
Battery Backup
• Protects accumulated data and powers real time
clock during power supply outage
• Compatible with Li-ion, NiCd, or super-capacitor
• Battery backup current 2µA typical at 25°C
External Data Interface
• UART Control Interface, two selectable data
rates
• 8 general-purpose I/O pins with alarm capability
• 5 or 10MHz selectable high speed synchronous
serial output for DSP interface
• IRQ output signal for alarms and end of measure-
ment intervals.
• Alarms on voltage sag, over-voltage, over-current
Low System Cost
• Power Consumption 30mW @ 3.3V typical
• Real-time clock with temperature compensation
• Built-in power fault detection
• Single 32kHz crystal time base
• Single-supply operation (3.3V)
• 64-lead LQFP package
Page: 1 of 57
© 2005-2008 TERIDIAN Semiconductor Corporation
V1.4
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www.DataSheet4U.com
71M6515H
Energy Meter IC
DATA SHEET
MARCH 2008
IA
VA
IB
VB
MUX
IC
VC
VX
TEMP
MUXSYNC
PULSE4
PULSE3
PULSE_INIT
BAUDRATE
TX
RX
D0
D1
D2
D3
MISC
UART
VREF
VREF
ΔΣ ADC
CONVERTER
V3P3A
-
+
VREF
21
VBIAS
(1.5V)
CALCULATIONS
OUTPUT VALUES:
Whr (A, B, C)
VARhr (A, B, C)
VAhr (A, B, C)
Vrms (A, B, C)
Irms (A, B, C)
Iphase (A, B, C)
Frequency (Selected Phase)
Temperature
ALARMS:
Voltage Sag (A, B, C)
Zero Cross (Selected Phase)
Over-Voltage (All)
Over-Current (All)
D0-D7 State Change
CONTROL
I/O CONTROL
Change of State
(D0...D7)
PULSEW PULSER V3P3A GNDA GNDA
VOLT
REG
2.5V to logic
SSI INTERFACE
GNDD
V3P3D
GNDD
GNDD
V2P5
SSCLK
SSDATA
SFR
SRDY
SYSTEM CLOCKS
CK_GEN
BATTERY BACKUP
OSC
(32KHz)
RTC
DATA
RAM
CKTEST
XIN
XOUT
VBAT
IRQZ
D4
D5
D6
D7
VFLT
VX
FAULT DETECT
VBIAS
(1.5V) V3P3
TEST
64 PINS -- 64 TQFP
RESETZ
Figure 2: IC Functional Block Diagram
March 3, 2008
GNDD
TMUXOUT
RESERVED
Page: 2 of 57
© 2005-2008 TERIDIAN Semiconductor Corporation
V1.4
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ELECTRICAL SPECIFICATIONS
www.DataSheet4U.com
71M6515H
Energy Meter IC
DATA SHEET
MARCH 2008
Supplies and Ground Pins:
V3P3D, V3P3A
|V3P3D – V3P3A|
VBAT
GNDD
Analog Output Pins:
VREF
V2P5
Analog Input Pins:
IA, VA, IB, VB, IC, VC
VFLT, VX
XIN, XOUT
Digital Input Pins:
RX
D0…D7
All other pins
ABSOLUTE MAXIMUM RATINGS
−0.5V to 4.6V
0V to 0.5V
-0.5V to 4.6V
-0.5V to +0.5V
-1mA to 1mA,
-0.5V to V3P3A+0.5V
-1mA to 1mA,
-0.5 to 3.0V
-0.5V to V3P3A+1.0V
-0.5V to V3P3A+0.5V
-0.5V to 3.0V
-0.5V to 3.6V
-0.5V to 6V
-0.5V to V3P3D+0.5V
Operating junction temperature (peak, 100ms)
140 °C
Operating junction temperature (continuous)
125 °C
Storage temperature
−45 °C to 165 °C
Solder temperature – 10 second duration
250 °C
ESD Stress
Pins IA, VA, IB, VB, IC, VC, RX, TX
6kV
All other pins
2kV
Stresses beyond Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and functional
operation at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability. All voltages are with respect to GNDA.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
CONDITION
MIN TYP MAX UNIT
3.3V Supply Voltage (V3P3A, V3P3D)+
Normal Operation
3.0 3.3
3.6
V
Battery Backup 0 3.8 V
VBAT
No Battery
Battery Backup
Externally Connect to V3P3D
2.0 3.8 V
Operating Temperature
-40 85 ºC
+ V3P3A and V3P3D should be shorted together on the circuit board. GNDD and GNDA should also be shorted on the circuit board.
Page: 3 of 57
© 2005-2008 TERIDIAN Semiconductor Corporation
V1.4
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