Datasheet
MSP430FE42x2
MIXED SIGNAL MICROCONTROLLER
SLAS616 − JULY 2008
32
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, T
A
= 25°C (See Note 1)
D f
ACLK
= 32,768 Hz (watch crystal)
D f
MCLK
= 8.39 MHz (FLL+)
D f
SD16
= f
MCLK
/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): I
B
= 6 A, I
MAX
= n × I
B
= 60 A, n = 10, V
N
= 230 V, f
MAINS
= 50 Hz
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
I = 0.05*I
B
, V = V
N
, PF = 1.0 3 V ±0.17
I = 0.1*I
B
to I
MAX
, V = V
N
, PF = 1.0
V1 SD16GAINx
=
1
3 V ±0.18
I = 0.1*I
B
, V = V
N
, PF = 0.5 lagging
V1
SD16GAINx
=
1
I1 SD16GAINx = 1
3 V ±0.19
Maximum error
I = 0.2*I
B
to I
MAX
, V = V
N
, PF = 0.5 lagging
I1
SD16GAINx
=
1
3 V ±0.27
%
Maximum
error
I = 0.1*I
B
, V = V
N
, PF = 0.8 leading
See Figure 14:
3 V ±0.15
%
I = 0.2*I
B
to I
MAX
, V = V
N
, PF = 0.8 leading
g
R1 = 0Ω, RB = 12.4Ω
3 V ±0.24
I = 0.2*I
B
to I
MAX
, V = V
N
, PF = 0.25 lagging 3 V ±0.38
D Input conditions (unless otherwise noted): I
B
= 10 A, I
MAX
= n × I
B
= 60 A, n = 6, V
N
= 230 V, f
MAINS
= 50 Hz
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
I = 0.05*I
B
, V = V
N
, PF = 1.0 3 V ±0.11
I = 0.1*I
B
to I
MAX
, V = V
N
, PF = 1.0 3 V ±0.18
I = 0.1*I
B
, V = V
N
, PF = 0.5 lagging
V1 SD16GAINx 1
3 V ±0.45
Maximum error
I = 0.2*I
B
to I
MAX
, V = V
N
, PF = 0.5 lagging
V1 SD16GAINx = 1
I1 SD16GAINx = 32
3 V ±0.33
%
Maximum
error
I = 0.1*I
B
, V = V
N
, PF = 0.8 leading
I1 SD16GAINx = 32
3 V ±0.10
%
I = 0.2*I
B
to I
MAX
, V = V
N
, PF = 0.8 leading 3 V ±0.18
I = 0.2*I
B
to I
MAX
, V = V
N
, 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)
1k
1uH
1.5k
990k
CT
I
33nF
1k
1uH
1k
1k1uH
33nF
33nF
33nF
I1+
I1−
V1
+
V1
−
R
B
R
1
Figure 14. Energy Measurement Test Circuitry (SD16GAINx = 1)