SI8518-B-GM datasheet(4/24 Pages) SILABS

Part #	SI8518-B-GM

Description	UNIDIRECTIONAL AC CURRENT SENSORS

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Manufacturer	SILABS [Silicon Laboratories]

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Si85xx

4

Preliminary Rev. 0.1

1. Electrical Specifications

Table 1. Electrical Specifications

TA = –40 to +85 ºC (typical specified at 25 ºC), VDD = 2.7 to 5.5 V

Parameter

Conditions

Min

Typ

Max

Unit

Supply Voltage (VDD)

2.7

—

5.5

V

Supply Current

Fully enabled, input frequency =

1MHz

—

4

7

mA

Undervoltage Lockout (VUVLO)

2.1

2.3

2.5

V

Undervoltage Lockout Hysteresis

(VHYST)

—

100

—

mV

Logic Input HIGH Level

MODE, R1, R2, R3, R4 inputs

(TTL compatible)

2.0

—

V

Logic Input LOW Level

—

0.8

V

Reset Time (tR)

250

—

ns

R1, R2, R3, R4 Input Rise Time (tRR)

—

30

ns

R1, R2, R3, R4 Input Fall Time (tFR)

—

30

ns

Measurement Watchdog Timeout (tWD)

30

50

80

µs

Series Input Resistance

Measured from IIN to IOUT

—

1.3

—

m

Ω

Series Inductance

Measured from IIN to IOUT

—

2

—

nH

Input/Output Delay

OUT, OUT1, OUT2 delay relative to

input

—

50

100

ns

Start-Up Self-Cal Delay (tCAL)

Time from VDD = VUVLO + VHYST to

cal complete

—

150

200

µs

Input Common Mode Voltage Range

—

1,000

V

Operating Input Frequency Range (f)

50

—

1,200

kHz

DC Power Supply Rejection Ratio

—

80

—

db

Sensitivity

Si85x1/4/7

—

400

—

mV/A

Si85x2/5/8

—

200

—

mV/A

Si85x3/6/9

—

100

—

mV/A

OUT, OUT1, OUT2 Offset Voltage

(VOUTMIN)

Current flow from IIN to IOUT = 0

—

10

—

mV

VOUT Slew Rate

OUT, OUT1, OUT2 load = 5K || 50 pF

—

50

—

V/µs

OUT, OUT1, OUT2 Output Resistance

20

30

Ω

Measurement Error (%)—all devices

(–40 to 85 ºC Temp Range)

5 to 10% of full scale

–20

—

+20

%

10 to 20% of full scale

–10

—

+10

%

20 to 100% of full scale

–5

—

+5

%

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