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ISO1540DR Datasheet(PDF) 4 Page - Texas Instruments

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Part # ISO1540DR
Description  Low-Power Bidirectional I2C Isolators
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

ISO1540DR Datasheet(HTML) 4 Page - Texas Instruments

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ISO1540
ISO1541
SLLSEB6A – JULY 2012 – REVISED OCTOBER 2012
www.ti.com
ELECTRICAL CHARACTERISTICS
Over recommended operating conditions, unless otherwise noted
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT (3V
≤ VCC1, VCC2 ≤ 3.6V)
ISO1540
2.4
3.6
VSDA1,
ICC1
Supply Current, Side 1
ISO1541
VSCL1 = GND1;
2.1
3.3
VSDA2,
ISO1540 and
ICC2
Supply Current, Side 2
1.7
2.7
VSCL2 = GND2
See Figure 1;
ISO1541
R1,R2 = Open,
mA
ISO1540
2.5
3.8
C1,C2 = Open
VSDA1,
ICC1
Supply Current, Side 1
ISO1541
VSCL1 = VCC1;
2.3
3.6
VSDA2,
ISO1540 and
ICC2
Supply Current, Side 2
1.9
3.1
VSCL2 = VCC2
ISO1541
SUPPLY CURRENT (4.5 V
≤ VCC1, VCC2 ≤ 5.5 V)
ISO1540
3.1
4.7
VSDA1,
ICC1
Supply Current, Side 1
ISO1541
VSCL1 = GND1;
2.8
4.4
VSDA2,
ISO1540 and
ICC2
Supply Current, Side 2
2.3
3.7
VSCL2 = GND2
See Figure 1;
ISO1541
R1,R2 = Open,
mA
ISO1540
3.1
4.7
C1,C2 = Open
VSDA1,
ICC1
Supply Current, Side 1
ISO1541
VSCL1 = VCC1;
2.9
4.5
VSDA2,
ISO1540 and
ICC2
Supply Current, Side 2
2.5
4
VSCL2 = VCC2
ISO1541
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SIDE 1 (Only)
Voltage Input Threshold “Low”,
VILT1
500
550
660
Side 1 (SDA1, SCL1)
Voltage Input Threshold “High”,
VIHT1
540
610
700
Side 1 (SDA1, SCL1)
Voltage Input Hysteresis,
VHYST1
40
60
Side 1 VIHT1- VILT1
mV
Low-Level Output Voltage,
VOL1
(1)
650
800
Side 1 (SDA1,SCL1)
0.5 mA
≤ (ISDA1 and
Low-Level Output Voltage to High-Level Input Voltage
ISCL1) ≤ 3.5 mA
ΔVOIT1
(1) (2)
Threshold Difference,
50
Side 1 (SDA1, SCL1)
SIDE 2 (Only)
Voltage Input Threshold “Low”,
0.3 x
0.4 x
VILT2
Side 2 (SDA2, SCL2)
VCC2
VCC2
Voltage Input Threshold “High”,
0.4 x
0.5 x
VIHT2
Side 2 (SDA2, SCL2)
VCC2
VCC2
mV
Voltage Input Hysteresis,
0.05 x
VHYST2
Side 2 VIHT2 - VILT2
VCC2
Low-Level Output Voltage,
0.5 mA
≤ (ISDA2 and
VOL2
400
Side 2 (SDA2, SCL2)
ISCL2) ≤ 35 mA
BOTH SIDES
Input Leakage Currents
VSDA1, VSCL1 = VCC1;
|II|
0.01
10
µA
(SDA1, SCL1, SDA2, SCL2)
VSDA2, VSCL2 = VCC2
Input Capacitance to Local Ground
VI = 0.4 x sin(2E6πt) +
CI
7
pF
(SDA1, SCL1, SDA2, SCL2)
2.5 V
CMTI
Common-Mode Transient Immunity
See Figure 3
25
50
kV/µs
VCC Undervoltage Lockout Threshold
VCCUV
(3)
2.1
2.5
2.8
V
(Side 1 and Side 2)
(1)
This parameter does not apply to the ISO1541 SCL1 line as it is uni-directional.
(2)
∆VOIT1 = VOL1 – VIHT1. This represents the minimum difference between a Low-Level Output Voltage and a High-Level Input Voltage
Threshold to prevent a permanent latch condition that would otherwise exist with bi-directional communication.
(3)
Any VCC voltages, on either side, less than the minimum will ensure device lockout. Both VCC voltages above the maximum will prevent
device lockout.
4
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Copyright © 2012, Texas Instruments Incorporated
Product Folder Links: ISO1540 ISO1541


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