SLAS616 datasheet(32/52 Pages) TI2

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MSP430FE42x2

MIXED SIGNAL MICROCONTROLLER

SLAS616 − JULY 2008

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

electrical characteristics over recommended operating free-air temperature (unless otherwise

noted) (continued)

ESP430CE1B, active energy measurement test conditions and accuracy, TA = 25°C (See Note 1)

D fACLK = 32,768 Hz (watch crystal)

D fMCLK = 8.39 MHz (FLL+)

D fSD16 = fMCLK/8 = 1.049 MHz

D Single point calibration at I = 10 A, PF = 0.5 lagging

D Measurements according to IEC1036

D Input conditions (unless otherwise noted): IB = 6 A, IMAX = n × IB = 60 A, n = 10, VN = 230 V, fMAINS = 50 Hz

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

UNIT

I = 0.05*IB, V = VN, PF = 1.0

3 V

±0.17

I = 0.1*IB to IMAX, V = VN, PF = 1.0

V1 SD16GAINx = 1

3 V

±0.18

I = 0.1*IB, V = VN, PF = 0.5 lagging

V1 SD16GAINx = 1

I1 SD16GAINx = 1

3 V

±0.19

Maximum error

I = 0.2*IB to IMAX, V = VN, PF = 0.5 lagging

I1 SD16GAINx = 1

3 V

±0.27

Maximum error

I = 0.1*IB, V = VN, PF = 0.8 leading

See Figure 14:

3 V

±0.15

I = 0.2*IB to IMAX, V = VN, PF = 0.8 leading

R1 = 0

Ω, RB = 12.4Ω

3 V

±0.24

I = 0.2*IB to IMAX, V = VN, PF = 0.25 lagging

3 V

±0.38

D Input conditions (unless otherwise noted): IB = 10 A, IMAX = n × IB = 60 A, n = 6, VN = 230 V, fMAINS = 50 Hz

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

UNIT

I = 0.05*IB, V = VN, PF = 1.0

3 V

±0.11

I = 0.1*IB to IMAX, V = VN, PF = 1.0

3 V

±0.18

I = 0.1*IB, V = VN, PF = 0.5 lagging

V1 SD16GAINx

3 V

±0.45

Maximum error

I = 0.2*IB to IMAX, V = VN, PF = 0.5 lagging

V1 SD16GAINx = 1

I1 SD16GAINx = 32

3 V

±0.33

Maximum error

I = 0.1*IB, V = VN, PF = 0.8 leading

I1 SD16GAINx = 32

3 V

±0.10

I = 0.2*IB to IMAX, V = VN, PF = 0.8 leading

3 V

±0.18

I = 0.2*IB to IMAX, V = VN, PF = 0.25 lagging

3 V

±0.51

NOTES:

1. Measurements performed using complete hardware solution. Error shown contain temperature dependencies of all components

including the MSP430FE42x2, crystal, and discrete components.

2. I1 SD16GAIN x = 1: CT part number = T60404−E4624−X101 ( Vacuumschmelze)

I1 SD16GAINx = 32: shunt part number = BVO−M−R0002−5.0 (Isabellenhütte Heusler GmbH KG)

1uH

1.5k

990k

33nF

1uH

33nF

I1+

I1−

V1+

V1−

Figure 14. Energy Measurement Test Circuitry (SD16GAINx = 1)

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