Datasheet

MSP430FE42xA
MIXED SIGNAL MICROCONTROLLER
SLAS588 -- FEBRUARY 2008
31
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature (unless otherwise
noted) (continued)
ESP430CE1A, active energy measurement test conditions and accuracy, T
A
=25°C(SeeNote1)
D f
ACLK
= 32,768 Hz (watch crystal)
D f
MCLK
= 4.194MHz (FLL+)
D f
SD16
=f
MCLK
/4 = 1.049MHz
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
=6A,I
MAX
=n*I
B
=60A,n=10,V
N
= 230 V, f
MAINS
=50Hz
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
I = 0.05*I
B
,V=V
N
,PF=1.0 3V ±0.17
I = 0.1*I
B
to I
MAX
,V=V
N
,PF=1.0
V
1
S
D
1
6
G
A
I
N
x
=
1
3V ±0.18
I = 0.1*I
B
,V=V
N
, PF = 0.5 lagging
V
1
S
D
1
6
G
A
I
N
x
=
1
I1 SD16G
A
IN
x
=1
3V ±0.19
Maximum error
I = 0.2*I
B
to I
MAX
,V=V
N
, PF = 0.5 lagging
I
1
S
D
1
6
G
A
I
N
x
=
1
3V ±0.27
%
M
a
x
i
m
u
m
e
r
r
o
r
I = 0.1*I
B
,V=V
N
, PF = 0.8 leading
See Figure 14:
3V ±0.15
%
I = 0.2*I
B
to I
MAX
,V=V
N
, PF = 0.8 leading
g
R1 = 0Ω, RB = 12.4Ω
3V ±0.24
I = 0.2*I
B
to I
MAX
,V=V
N
, PF = 0.25 lagging 3V ±0.38
D Input conditions (unless otherwise noted):
I
B
=10A,I
MAX
=n*I
B
=60A,n=6,V
N
= 230 V, f
MAINS
=50Hz
PARAMETER TEST CONDITIONS V
CC
MIN TYP MAX UNIT
I = 0.05*I
B
,V=V
N
,PF=1.0 3V ±0.11
I = 0.1*I
B
to I
MAX
,V=V
N
,PF=1.0 3V ±0.18
I = 0.1*I
B
,V=V
N
, PF = 0.5 lagging
V
1
S
D
1
6
G
A
I
N
1
3V ±0.45
Maximum error
I = 0.2*I
B
to I
MAX
,V=V
N
, PF = 0.5 lagging
V
1 SD16G
A
IN
x
=1
I
1
S
D
1
6
G
A
I
N
x
=
3
2
3V ±0.33
%
M
a
x
i
m
u
m
e
r
r
o
r
I = 0.1*I
B
,V=V
N
, PF = 0.8 leading
I1 SD16G
A
IN
x
=32
3V ±0.10
%
I = 0.2*I
B
to I
MAX
,V=V
N
, PF = 0.8 leading 3V ±0.18
I = 0.2*I
B
to I
MAX
,V=V
N
, PF = 0.25 lagging 3V ±0.51
NOTES: 1. Measurements performed using complete hardware solution. Error shown contain temperature dependencies of all components
including the MSP430FE42xA, crystal, and discrete components.
2. I1 SD16GAIN x = 1,4: CT part number = T60404--E4624--X101 ( Vacuumschmelze)
I1 SD16GAINx = 8: shunt part number = A--H2--R005--F1--K2--0.1 (Isabellenhütte Heusler GmbH KG)
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)