LTC1531_15 datasheet(2/16 Pages) LINER

Part #	LTC1531

Description	Self-Powered Isolated Comparator

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTC1531

ABSOLUTE MAXIMUM RATINGS

PACKAGE/ORDER INFORMATION

ORDER PART

NUMBER

LTC1531CSW

1

2

3

4

11

12

13

14

28

27

26

25

18

17

16

15

VCC

SHDN

ZCNEG

ZCPOS

VPW

CMPOUT

VREG

ISOGND

GND

ZCDATA

DATA

VALID

V1

V2

V3

V4

SW PACKAGE

28-LEAD PLASTIC SO (ISO)

TOP VIEW

TJMAX = 125°C, θJA = 125°C/ W

Consult factory for Industrial and Military grade parts.

ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

IVCC

Supply Current

SHDN = VCC, No Load

●

10

14

mA

SHDN = 0V

●

0.2

10

μA

VZCOS

Zero-Cross Offset

VCM = VCC

●

±30

±120

mV

VHYS

Zero-Cross Hysteresis

VCM = VCC (Note 7)

●

200

800

mV

fSAMPLE

Isolated Comparator Sample Rate

VREG Not Loaded (Note 2)

300

Hz

VOS

Isolated Comparator Offset

V1 = V2, V3 = V4

●

2.0

4.0

mV

V1 – V3 = 2V, V4 – V2 = 2V

●

2.0

4.0

mV

RVIN

Isolated Comparator

V1 = V3 = 2.5V, V2 = V4 = 0V

18

M

Ω

Input Impedance

V1 = V2 = 1.25V, V3 = V4 = 0V

300

M

Ω

IVIN

Isolated Comparator Input Current

V1 = V3 – 2.5V, V2 = V4 = 0V

±1nA

fSAMPLE = 700Hz (Note 4)

VREG

2mA Load VPW = 3.3V (Note 5)

●

2.40

2.50

2.55

V

RVREG

VREG Output Impedance

2mA to 5mA Load

●

415

Ω

ICMPOUT

CMPOUT High Impedance Leakage Current

VCMPOUT = 2.5V

1

nA

tVREG

VREG On-Time

●

90

108

130

μs

VPWH

VPW, Power Detect Enable Voltage

3.3

V

IVPW

Current Transfer to VPW

VPW = 0V

45

μA

VPW = 3.3V

30

μA

VISO

Isolation Voltage

1 Minute (Note 6)

●

2500

VRMS

1 Second

●

4500

VDC

Total Supply Voltage (VCC to GND) ............................ 7V

Input Voltages

Isolated Comparator

(V1 to V4) .............................. – 0.3V to (VPW + 0.3V)

SHDN, ZCPOS, ZCNEG ......................... – 0.3V to 12V

Current

Input Pins .......................................................

±10mA

ZCDATA, VALID, DATA ..................................

±10mA

Operating Temperature Range ..................... 0

°C to 70°C

Storage Temperature Range ................. – 65

°C to 150°C

Lead Temperature (Soldering, 10 sec).................. 300

°C

(Note 1)

The

● denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C, VCC = 5V.

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