CS5462-IS View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS5462-IS

Low Cost Power/Energy IC with Pulse Output

Cirrus Logic 

CS5462

4.8 Basic Application Circuit

Configurations

Figure 9 shows the CS5462 configured to measure

power in a single-phase 2-wire system while oper-

ating in a single supply configuration. In this dia-

gram, the shunt resistor used to monitor the line

current is connected on the “Line” (hot) side of the

power mains. In most residential power metering

applications, the power meter’s current-sense

shunt resistor is intentionally placed on the hot side

of the power mains in order to detect a subscriber’s

attempt to steal power. In this type of shunt-resistor

configuration, the common-mode level of the

CS5462 must be referenced to the hot side of the

power line. This means that the common-mode po-

tential of the CS5462 will typically oscillate to very

high voltage levels, as well as very low voltage lev-

els, with respect to earth ground potential.

N 120 VAC L

500 Ω

470 nV

R2

R1

RV-

RI-

RSHUNT

RI+

500 Ω

+ 100 µF

CV+

CV-

CI-

CI+

0.1 µF

10 Ω

0.1 µF

14

AVGAN+D

9

VIN+

CVdiff

10

VIN-

15

IIN-

CIdiff

16

IIN+

3

VD+ / P7

NEG / P2

6

IGAIN 17

P3 20

CAL0 23

CAL1

5

FREQ 7

DGND / P1 4

22

EDEIR2 // P4

EE1O/ UP5T 21

18

FOUT / P6

XOUT 1

12

VREFIN

11 VREFOUT

24

XIN

CPUCLK 2

AVGAN-D

13

DGND

8

0.1 µF

Jumpers

for

Calibration,

Freq Select

and

Gain Select

Stepper

Motor

or

Mechanical

Counter

Figure 8. Typical Connection Diagram

16

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