CS5464-IS Cirrus Logic Inc, CS5464-IS Datasheet - Page 42

• Manufacturer Part Number: CS5464-IS
• Description: Other Power Management 3-Ch Single Phase Power/Energy IC
• Manufacturer: Cirrus Logic Inc

Specifications of CS5464-IS

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

11. BASIC APPLICATION CIRCUITS
Figure 14
power in a single-phase, 2-wire system while operating
in a single-supply configuration. In this diagram, a shunt
resistor is used to sense the line current and a voltage
divider is used to sense the line voltage. In this type of
shunt-resistor configuration, the common-mode level of
the CS5464 must be referenced to the line side of the
42
L2
R
CT
2
VOLTAGE
LOAD
shows the CS5464 configured to measure
Figure 14. Typical Connection Diagram (Single-phase, 2-wire – Direct Connect to Power Line)
LINE
R
1
L1
1uF
R
½ R
½ R
Shunt
Burden
Burden
500 W
R
V-
R
R
I+
I-
R
R
I-
I+
470µF
C
C
500
I+
I-
C
C
C
C
I-
I+
W
V+
V-
0.1µF
C
Idiff
C
C
power line. This means that the common-mode poten-
tial of the CS5464 will track the high-voltage levels, as
well as low-voltage levels, with respect to earth ground.
Isolation circuitry is required when an earth-ground-ref-
erenced communication interface is connected. A cur-
rent transformer (CT) is connected to the return line
current, which implements the tamper detection circuit.
Idiff
Vdiff
0.1µF
19
10
12
11
20
15
16
9
IIN-
IIN+
IIN2-
IIN2+
VIN-
VREFIN
VREFOUT
VIN+
VA+
AGND
18
CS5464
17
10 W
DGND
CPUCLK
PFMON
RESET
TEST1
TEST2
XOUT
SCLK
4
VD+
SDO
XIN
SDI
INT
CS
E2
E1
3
5 k W
21
28
23
7
27
6
5
24
26
25
13
14
2
1
0.1 µF
4.096 MHz
Pulse Output
Counter
Optional
Source
10 k W
Clock
CS5464
DS682F1
Interface
Serial
Data