STEVAL-IPE009V1 STMicroelectronics, STEVAL-IPE009V1 Datasheet - Page 20

• Manufacturer Part Number: STEVAL-IPE009V1
• Description: BOARD EVAL ST72321BR9/STPM14
• Manufacturer: STMicroelectronics
• Type: Other Power Managementr

Specifications of STEVAL-IPE009V1

• Main Purpose: Power Management, Energy/Power Meter
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: STPM14, ST72F321BR9T6
• Primary Attributes: 1-Ph 220 VAC, LCD Displays: No-Load, Reverse, Fraud, or Case Tampering
• Secondary Attributes: Up to 4 Tariff Rates, Data Accumulated for Meter Life, Time Stamp for: Tamper, Fraud, Power Failure
• Input Voltage: 220 V
• Product: Power Management Modules
• Silicon Manufacturer: ST Micro
• Silicon Core Number: ST72321BR9 And STPM14
• Features: Continuously Detects, Displays No-Load Condition, Reverse Direction, Fraud And Case Tamper Condition
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: STPM14, ST72321BR9
• Other names: 497-8434; STEVAL-IPE009V1

Theory of operation
Figure 16. Bandgap temperature variation
7.7
Table 12.
20/46
LTCH
0
1
2
3
bias currents and voltages for all other analog modules and for the OTP module. The
bandgap voltage temperature behavior can be changed in order to better compensate the
variation of sensor sensitivity with temperature. This task is performed with the BGTC
configuration bits.
Load monitoring
The STPM1X include a no-load condition detection circuit with adjustable threshold. This
circuit monitors the voltage and the current channels and, when the measured power is
below the set threshold, the internal signal BIL becomes high. The information about this
signal is also available in the status bit BIL.
The no load condition occurs when the product between V
below a given value. This value can be set with the LTCH configuration bits, and it is also
dependent on the selected current gain (Ai) and the calibration registers constant Kp=Kv*Ki.
Four different no-load threshold values can be chosen according to the two configurations
bits LTCH (see
No load detection thresholds
When a no-load condition occurs (BIL=1), the integration of power is suspended and the
tamper module is disabled.
If a no-load condition is detected, the BIL signal blocks generation of pulses for stepper and
forces the SCLNLC pin to be low.
V
RMS
* I
Rogowski coil (PST<2)
RMS
0.004488 / (Ai*Kp)
0.008976 / (Ai*Kp)
0.017952 / (Ai*Kp)
0.035904 / (Ai*Kp)
Table
(input channel voltages)
12).
Doc ID 13167 Rev 7
V
RMS
STPM11, STPM12, STPM13, STPM14
* I
RMS
RMS
Ct or Shunt (PST>1)
0.003648 / (Ai*Kp)
0.007296 / (Ai*Kp)
0.014592 / (Ai*Kp)
0.029184 / (Ai*Kp)
(input channel voltages)
and I
RMS
input values is