STPM11 STMicroelectronics, STPM11 Datasheet
STPM11
Related parts for STPM11
STPM11 Summary of contents
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... Easy and fast digital calibration at only one load point ■ No-load, negative power and tamper indicators ■ Integrated linear VREGS ■ RC (STPM11/13) or crystal oscillator (STPM12/14) ■ Support 50÷ IEC62052-11, IEC62053- 2X specification ■ Less than 0.1% error Description The STPM1x family is designed for effective ...
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... Period and line voltage measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7.5 Single wire meter mode (STPM13/14 with Rogowsky coil sensor 7.6 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 7.7 Load monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7.8 Error detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 7.9 Tamper detection module (STPM13/14 only 7.10 Phase compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 7.11 Clock generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 7.12 Resetting the STPM1X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 7.13 Energy to frequency conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 7.14 Driving a stepper motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 7.15 Configuring the STPM1X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 7.16 Mode signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 2/ STPM11/12/13/14 ...
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... STPM11/12/13/14 7.17 CFGI: Configuration interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 8 Energy calculation algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 9 STPM1X Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 10 Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 11 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 12 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 3/43 ...
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... Schematic diagram 1 Schematic diagram Figure 1. Block diagram 4/43 STPM11/12/13/14 ...
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... STPM11/12/13/14 2 Pin configuration Figure 2. Pin connections (top view) Table 1. Pin description Pln N° Symbol Type 1 MON MOP SCS OUT DDD 5 V GND INr OTP OUT DDA IP1 IN1 ...
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... Symbol R Thermal resistance junction-ambient thJA 1. This value is referred to single-layer PCB, JEDEC standard test board. 6/43 Parameter , IP1 IN1 IP2 IN2 IP IN Parameter STPM11/12/13/14 Value Unit -0 ± 150 -0.7 to 0 ± 3 °C -40 to 150 °C -55 to 150 ° ...
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... STPM11/12/13/14 4 Electrical characteristics Table 4. Electrical characteristics (V =5V 25°C, 2.2µF between between V and V CC Symbol Parameter Energy measurement accuracy f Effective bandwidth BW Error Measurement error SNR Signal to noise ratio PSRR Power supply DC rejection DC PSRR Power supply AC rejection AC General section V Operating supply voltage ...
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... Input enabled SDA-TD, SCS, SYN-NP, LED CLKIN SDA-TD, SCS, SYN-NP, LED CLKIN I = -2mA +2mA 50pF LOAD I = -14mA +14mA 50pF LOAD STPM11/12/13/14 , 2.2µF between V and V SS DDD Min. Typ. Max. 300 -0.3 -0.15 0.15 -0.075 0.075 -0.05 0.05 -0.035 0.035 CLK ±20 ...
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... V CC Symbol Parameter Crystal oscillator (STPM12/14) I Input current on CLKIN I R External resistor P C External capacitors P f Nominal output frequency CLK RC Oscillator (STPM11/13) I Settling current CLKIN R Settling resistor SET t Frequency jitter JIT On chip reference voltage Reference voltage V REF Reference accuracy T Temperature coefficient ...
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... CFGI interface and the clock of the DSP block. A positive logic convention is used in all equations. 10/43 /100 Hz) signal is introduced onto the supply RMS measurement, a reading at two nominal supply voltages (3.3 and 5V) is STPM11/12/13/14 measurement, a reading at two AC which represents the SS . This OUT ...
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... STPM11/12/13/14 6 Typical performance characteristics Figure 3. Supply current vs supply voltage, T =25°C A Figure 5. RC Oscillator: Frequency jitter vs temperature Figure 7. Digital voltage regulator: Line - load regulation Typical performance characteristics Figure 4. RC Oscillator frequency vs V R=12kΩ =25°C A Figure 6. Analog voltage regulator: Line - load regulation Figure 8 ...
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... Figure 11. Error over dynamic range gain dependence Figure 13. Gain response of ∆Σ AD Converters Figure 14. Clock frequency vs external 12/43 Figure 10. Power supply DC rejection Figure 12. Primary current channel linearity at different V CC resistor STPM11/12/13/14 CC CRC=0 CRC=1 CRC [kΩ] ...
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... Analog inputs Input amplifiers The STPM1X has one fully differential voltage input channel and one (STPM11/12) or two (STPM13/14) fully differential current input channels. The voltage channel consists of a differential amplifier with a gain of 4. The maximum differential input voltage for the voltage channel is ±0.3V. ...
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... STPM11/12 Sensor Rogowsky Coil CT Shunt STPM13/14 Secondary Gain Sensor 8 16 Rogowsky Coil Shunt STPM11/12/13/14 Configuration Bits PST (2bits) ADDG (1 bit Configuration Bits PST (2bits) ADDG (1 bit) ...
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... STPM11/12/13/14 A ∑ ∆ modulator converts the input signal into a continuous serial stream of 1s and rate determined by the sampling clock. In the STPM1X, the sampling clock is equal to f /4. The 1-bit DAC in the feedback loop is driven by the serial data stream. The DAC CLK output is subtracted from the input signal ...
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... K V value goes above twice V IRMS BFR-on 0.009571/Kv 0.0078/Kv RMS , where VPK represents the maximum line voltage reading of the is a coefficient that changes according to STPM11/12/13/14 -V drops below a threshold value When the BFR IRMS-BFR BFR-off 0.019142/Kv 0.0156/Kv (effectively measured) and an equivalent Table 10 ...
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... STPM11/12/13/14 Table 10. Nominal voltage values NOM For example 783kΩ and R2 = 475Ω are used as resistor divider when the line voltage is present, the positive voltage present at the input of the voltage channel of STPM1x is ⋅ RMS since the maximum voltage value applicable to the voltage channel input of STPM1x is +0 ...
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... When a no-load condition occurs (BIL=1), the integration of power is suspended and the tamper module is disabled no-load condition is detected, the BIL signal blocks generation of pulses for stepper and forces the SCLNLC pin to be low. 18/43 ). Vrms * Irms (input channel voltages) STPM11/12/13/ Shunt (PST>1) 0.003648 / (Ai*Kp) 0.007296 / (Ai*Kp) 0.014592 / (Ai*Kp) 0.029184 / (Ai*Kp) ...
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... STPM11/12/13/14 7.8 Error detection In addition to the no-load condition and the line frequency band, the integration of power can be suspended also due to detected error on the source signals. There are two kinds of error detection circuits involved. The first checks all the ∑ ∆ signals from the analog part if any are stacked within the 1/128 of f observation. In case of detected error the corresponding ∑ ...
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... Several cases of transition of the state are shown in the Figure 17. Tamper conditions The detected tamper condition is stored in the BIT signal. This signal is connected to the SDA-TD pin. When this pin is low, a tamper condition has been detected. 20/43 STPM11/12/13/14 Figure 17. - below ...
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... All the internal timing of the STPM1X is based on the CLK generated by different circuits according to the STPM1x version. STPM11/13: Internal RC Oscillator. A resistor connected between CLK will set the RC current. For 4Mhz operation the suggested settling resistor is 12kΩ; The oscillator frequency can be compensated using the CRC configuration bit (see Table 13 an Figure 14 ...
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... Table 11. provide low frequency pulses for readout purposes. The division factor is set according to KMOT configuration bits. In this case the pulses will have a fixed width of 31.25 ms. 22/43 STPM12/14 with external source STPM11/13 , setting APL=1 the number of pulses are reduced in order to STPM11/12/13/14 ...
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... STPM11/12/13/14 Table 12. Different settings for led signal KMOT (2 Bits Due to the innovative and proprietary power calculation algorithm, the frequency signal is not affected by any ripple at twice the line frequency. This feature strongly reduces the calibration time of the meter. 7.14 Driving a stepper motor The STPM1X is able to directly drive a stepper motor ...
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... The shadow registers are cleared whenever a reset condition occurs. The configuration bits are different for STPM11/12 and for STPM13/14 due to the presence of the Tamper module. Each of them consists of paired elements, one is latch (the OTP shadow), and one is the OTP anti-fuse element ...
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... KMOT=2 P/5 → KMOT=3 P/40 Current channel sensor type, gain and tamper selection: STPM11/12 - PST=0: primary is Rogowsky coil x8 (x16 if ADDG=1) - PST=1: primary is Rogowsky coil x24 (x32 if ADDG=1), - PST=2: primary is CT x8, - PST=3: primary is shunt x32, STPM13/14 - PST=0: primary is Rogowsky coil x8 (x16 if ADDG=1), secondary is ...
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... CPH=15 the compensation is 0.576°. 8-bit unsigned data for voltage channel calibration. 256 values are possible. When CHV is 0 the calibrator is at -12.5% of the nominal value. When CHV is 255 the calibrator is at +12.5%. The calibration step is then 0.098%. STPM11/12/13/14 (1) th harmonic; Figure 16. ...
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... When CHS is 0 the calibrator is at -12.5% of the nominal value. When CHS is 255 the calibrator is at +12.5%. The calibration step is then 0.098%. STPM11/13 only 2-bit unsigned data for calibration of RC oscillator. (see Typical characteristics in) CRC=0, or CRC=3 cal=0% CRC=1, cal=+10% ...
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... When this bit is not set, any writing to the configuration bit is recorded in the shadow latches. When this bit is set, the writing is recorded both in the shadow latch and in the OTP anti-fuse element. 28/43 Status OTP CC voltage (14V to 20V) needed to program the OTP anti-fuse OTP STPM11/12/13/14 Binary Hex Command Command 0111000x 1111000x ...
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... STPM11/12/13/14 7.17 CFGI: Configuration interface The CFGI interface supports a simple serial protocol, which is implemented in order to enable the configuration of STPM1x which allows writing the Mode bits and the configuration bits (temporarily or permanently); Four pins of the device are dedicated to this purpose: SCS, SYN-NP, SCLNCN, SDATD. ...
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... POR. Commands for changing system signals should be sent during active signals SCS and SYN shown in the active signals SCS and SYN-NP. 30/43 Table 14. . Figure 19 string of commands can be send within one period of STPM11/12/13/14 ...
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... STPM11/12/13/14 Permanent writing of the CFG bits In order to make a permanent set of some CFG bits, use the following procedure: 1. collect all addresses of CFG bits to be permanently set into a list; 2. clear all OTP shadow latches; 3. set the system signal RD; 4. connect a current source of at least +14V, 1mA to 3mA to VOTP; ...
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... In the STPM1X, after the pre-conditioning and the A/D conversion, the digital voltage signal (which is dynamically more stable with respect to the current signal) is processed by a differentiate stage which transforms: v(t) → v’(t) = dv/ The result, together with the pre-processed and digitalized current signal: 32/43 ⋅ ⋅ ω cos tω − [Eq see (5) in Figure 6] STPM11/12/13/14 ...
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... STPM11/12/13/14 ⋅ sin(tω + ϕ); [Eq see (6) in Figure i( can then be used to calculate. These digital signals are also used in two additional steps for integration, obtaining: ⋅ dv/dt → v( [Eq see (8) in Figure 6] Now four signals are available. Combining (pairing) them by two multiplication steps two ...
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... The absence of any AC component allows a very fast calibration procedure. Averaging the readings of several line periods is not needed. The active energy measurement is already stable after one line cycle. Moreover the digital calibration allows saving time and space compared to the hardware calibration made with resistor strings. 34/43 ω ϕ − ⋅ sin STPM11/12/13/14 ...
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... STPM11/12/13/14 9 STPM1X Calibration Energy meters based on STPM1X devices are calibrated on the frequency of the output pulse signal. The devices are comprised of two independent meter channels for line voltage and current respectively. Each channel includes its own digital calibrator, to adjust the voltage and current signals coming from the sensors in the range of ± ...
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... CV) to the lowest integer value of R, while the other (CC) should be set to the nearest integer value of R. Examples: R-768=128.124; in this case set CV=128; set CC=128 R-768=127.755; while in this other one set CV=127; set CC=128. 36/43 2 )/(fM*Vn*In*Gv*Gi*Kp*Ai*Av*Si)= 0,6324mV/V of the meter and the actual values STPM11/12/13/14 and I , RMS RMS ...
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... STPM11/12/13/14 10 Schematic Figure 23. Charge pump schematic Schematic 37/43 ...
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... Schematic Figure 24. Application schematic 38/43 STPM11/12/13/14 ...
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... STPM11/12/13/14 11 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label ...
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... PIN 1 IDENTIFICATION 1 40/43 TSSOP20 MECHANICAL DATA mm. TYP MAX. 1.2 0.15 1 1.05 0.30 0.20 6.5 6.6 6.4 6.6 4.4 4.48 0.65 BSC 8˚ 0.60 0. STPM11/12/13/14 inch MIN. TYP. 0.002 0.004 0.031 0.039 0.007 0.004 0.0079 0.252 0.256 0.244 0.252 0.169 0.173 0.0256 BSC 0˚ 0.018 0.024 0087225C MAX. 0.047 0.006 0.041 ...
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... STPM11/12/13/14 Tape & Reel TSSOP20 MECHANICAL DATA DIM. MIN 12 6.8 Bo 6.9 Ko 1.7 Po 3.9 P 11.9 mm. TYP MAX. MIN. 330 13.2 0.504 0.795 2.362 22.4 7 0.268 7.1 0.272 1.9 0.067 4.1 0.153 12.1 0.468 Package mechanical data inch TYP. MAX. 12.992 0.519 0.882 0.276 0.280 0.075 0.161 0.476 ...
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... Revision history 12 Revision history Table 19. Revision history Date Revision 30-Jan-2007 1 06-Feb-2007 2 20-Mar-2007 3 42/43 Initial release. The Figure 11. has been changed. General description has been updated. STPM11/12/13/14 Changes ...
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... STPM11/12/13/14 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...