The ISO72x-Q1 is a digital isolator with a logic input and output buffer separated by a silicon oxide (SiO2) insulation barrier

ISO722-Q1

Manufacturer Part NumberISO722-Q1
DescriptionThe ISO72x-Q1 is a digital isolator with a logic input and output buffer separated by a silicon oxide (SiO2) insulation barrier
ManufacturerTexas Instruments
ISO722-Q1 datasheet
 


Specifications of ISO722-Q1

Number Of Channels1Channel Configuration1/0
Insulation Rating(vrms)2500Supply Voltage(s)(v)3.3, 5
Datarate(mbps)100Input Noise FilterYes
Prop Delay(max)(ns)24Ttl/cmos Input ThresholdTTL
FootprintADuM1100Operating Temperature Range(c)-40 to 125
Pin/package8SOICThermal ShutdownNo
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3.3-V / 5-V HIGH-SPEED DIGITAL ISOLATORS
FEATURES
1
Qualified for Automotive Applications
4000-V
Isolation
(peak)
– UL 1577, IEC 60747-5-2 (VDE 0884, Rev 2),
IEC 61010-1
– 50-kV/s Transient Immunity (Typ)
Signaling Rate 0 Mbps to 150 Mbps
– Low Propagation Delay
– Low Pulse Skew
(Pulse-Width Distortion)
DESCRIPTION
The ISO72x-Q1 is a digital isolator with a logic input and output buffer separated by a silicon oxide (SiO
insulation barrier. This barrier provides galvanic isolation of up to 4000 V. Used in conjunction with isolated
power supplies, this device prevents noise currents on a data bus or other circuits from entering the local ground,
and interfering with or damaging sensitive circuitry.
A binary input signal is conditioned, translated to a balanced signal, then differentiated by the capacitive isolation
barrier. Across the isolation barrier, a differential comparator receives the logic transition information, then sets or
resets a flip-flop and the output circuit accordingly. A periodic update pulse is sent across the barrier to ensure
the proper dc level of the output. If this dc refresh pulse is not received for more than 4 μs, the input is assumed
to be unpowered or not being actively driven, and the failsafe circuit drives the output to a logic high state.
DC Channel
OSC
+
PWM
Input
IN
+
Filter
AC Channel
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Check for Samples: ISO721-Q1,
ISO722-Q1
Low-Power Sleep Mode
High Electromagnetic Immunity
Low Input Current Requirement
Failsafe Output
Drop-In Replacement for Most Optical and
Magnetic Isolators
FUNCTION DIAGRAM
Isolation Barrier
+
_
V
ref
_
+
POR
BIAS
+
_
V
ref
_
+
ISO721-Q1, ISO722-Q1
SLLS918A – JULY 2008 – REVISED SEPTEMBER 2011
Filter
Pulse Width
Demodulation
Carrier Detect
POR
Data MUX
AC Detect
3-State
OUT
Output Buffer
Copyright © 2008–2011, Texas Instruments Incorporated
)
2

ISO722-Q1 Summary of contents

  • Page 1

    ... FUNCTION DIAGRAM Isolation Barrier + _ V ref _ + POR BIAS + _ V ref _ + ISO721-Q1, ISO722-Q1 SLLS918A – JULY 2008 – REVISED SEPTEMBER 2011 Filter Pulse Width Demodulation Carrier Detect POR Data MUX AC Detect 3-State OUT Output Buffer Copyright © 2008–2011, Texas Instruments Incorporated ) 2 ...

  • Page 2

    ... ISO721-Q1, ISO722-Q1 SLLS918A – JULY 2008 – REVISED SEPTEMBER 2011 DESCRIPTION (CONTINUED) The symmetry of the dielectric and capacitor within the integrated circuitry provides for close capacitive matching and allows fast transient voltage changes between the input and output grounds without corrupting the output. ...

  • Page 3

    ... IORM 100 % Production test with Partial discharge < 500 Product Folder Link(s): ISO721-Q1 ISO722-Q1 ISO721-Q1, ISO722-Q1 SLLS918A – JULY 2008 – REVISED SEPTEMBER 2011 –0 –0 ±15 mA 170°C (3) ±2 kV (4) ±1 kV ...

  • Page 4

    ... ISO721-Q1, ISO722-Q1 SLLS918A – JULY 2008 – REVISED SEPTEMBER 2011 ELECTRICAL CHARACTERISTICS: V over recommended operating conditions (unless otherwise noted) PARAMETER Quiescent I V supply current CC1 CC1 25 Mbps ISO722-Q1 Sleep Mode I V supply current CC2 CC2 Quiescent 25 Mbps V High-level output voltage OH V Low-level output voltage ...

  • Page 5

    ... Figure 2 ISO722-Q1 See Figure 3 See Figure 4 100-Mbps NRZ data input, See Figure 6 100-Mbps unrestricted bit run length data input, See Product Folder Link(s): ISO721-Q1 ISO722-Q1 ISO721-Q1, ISO722-Q1 SLLS918A – JULY 2008 – REVISED SEPTEMBER 2011 OPERATION MIN TYP MAX 0 150 ...

  • Page 6

    ... ISO721-Q1, ISO722-Q1 SLLS918A – JULY 2008 – REVISED SEPTEMBER 2011 ELECTRICAL CHARACTERISTICS: V over recommended operating conditions (unless otherwise noted) PARAMETER Quiescent I V supply current CC1 CC1 25 Mbps ISO722-Q1 Sleep Mode I V supply current CC2 CC2 Quiescent 25 Mbps V High-level output voltage OH V Low-level output voltage ...

  • Page 7

    ... ISO722-Q1 See Figure 3 See Figure 4 100-Mbps NRZ data input, See Figure 6 100-Mbps unrestricted bit run length data input, See Figure 6 Product Folder Link(s): ISO721-Q1 ISO722-Q1 ISO721-Q1, ISO722-Q1 SLLS918A – JULY 2008 – REVISED SEPTEMBER 2011 MIN TYP MAX 0.3 0 150 ...

  • Page 8

    ... Input Generator NOTE A - Figure 3. ISO722-Q1 Sleep-Mode Low-Level Output Test Circuit and Voltage Waveforms A: The input pulse is supplied by a generator having the following characteristics: PRR ≤ 50 kHz, 50% duty cycle ± 20% and includes instrumentation and fixture capacitance Submit Documentation Feedback ...

  • Page 9

    ... ± 20 CC1 CC2 0 GND1 GND2 1% ± Product Folder Link(s): ISO721-Q1 ISO722-Q1 ISO721-Q1, ISO722-Q1 SLLS918A – JULY 2008 – REVISED SEPTEMBER 2011 V CC1 OUT ± 20% ...

  • Page 10

    ... Figure 6. Peak-to-Peak Eye-Pattern Jitter Test Circuit and Voltage Waveform 10 Submit Documentation Feedback itte r 16 – 1. Transition Time is 800 ps. NRZ data input has no more than five consecutive Product Folder Link(s): ISO721-Q1 ISO722-Q1 www.ti.com Tektronix 784D V CC1 CC2/2 ...

  • Page 11

    ... Material group Rated mains voltage ≤150 VRMS Rated mains voltage ≤300 VRMS Input CC1 CC1 CC1 1 MW Product Folder Link(s): ISO721-Q1 ISO722-Q1 ISO721-Q1, ISO722-Q1 SLLS918A – JULY 2008 – REVISED SEPTEMBER 2011 MIN TYP MAX UNIT 4.8 mm 4.3 mm ≥ 175 0.008 mm 12 > ...

  • Page 12

    ... 5.5 V CC1 CC2 100 150 o Case Temperature − C Thermal Derating Curve Per IEC 60747-5-2 JC Product Folder Link(s): ISO721-Q1 ISO722-Q1 www.ti.com MIN MAX = 25°C 100 A = 25°C 153 A 150 MIN TYP MAX 263 125 pF, L 159 = 3 ...

  • Page 13

    ... Copyright © 2008–2011, Texas Instruments Incorporated (1) Table 3. FUNCTION TABLE INPUT V CC2 (IN Open PU X ≥ powered down (V ≤ 2.5 V irrelevant high level, CC Product Folder Link(s): ISO721-Q1 ISO722-Q1 ISO721-Q1, ISO722-Q1 SLLS918A – JULY 2008 – REVISED SEPTEMBER 2011 OUTPUT (OUT Submit Documentation Feedback 13 ...

  • Page 14

    ... C V 2.92 ) IT+ 2.9 ) 2.88 IT+ 2.86 Air Flow at 7 cf/m 2.84 2.82 2.8 2. 110 125 -40 o − C Product Folder Link(s): ISO721-Q1 ISO722-Q1 www.ti.com RMS SUPPLY CURRENT vs SIGNALING RATE = CC2 L I CC1 Signaling Rate (Mbps) Figure 10. PROPAGATION DELAY vs FREE-AIR TEMPERATURE t PLH t PHL V ...

  • Page 15

    ... − V Product Folder Link(s): ISO721-Q1 ISO722-Q1 ISO721-Q1, ISO722-Q1 SLLS918A – JULY 2008 – REVISED SEPTEMBER 2011 LOW-LEVEL OUTPUT CURRENT vs LOW-LEVEL OUTPUT VOLTAGE 3 − Low-Level Output Voltage − ...

  • Page 16

    ... Open (5) NC GND1 GND2 20 mm (max (max) from V from V CC1 ISO721 OUT 4 5 Figure 18. Basic Application Circuit Product Folder Link(s): ISO721-Q1 ISO722-Q1 www.ti.com HCPL-xxxx IL710 DD1 DD1 DD2 ...

  • Page 17

    ... These sparks often cause carbonization on insulation material and lead to a carbon track between points of different potential. This process is known as tracking. Copyright © 2008–2011, Texas Instruments Incorporated ISOLATION GLOSSARY Product Folder Link(s): ISO721-Q1 ISO722-Q1 ISO721-Q1, ISO722-Q1 SLLS918A – JULY 2008 – REVISED SEPTEMBER 2011 Submit Documentation Feedback 17 ...

  • Page 18

    ... III: Distribution Level — Fixed installation IV: Primary Supply Level — Overhead lines, cable systems Each category should be subject to smaller transients than the category above. 18 Submit Documentation Feedback Product Folder Link(s): ISO721-Q1 ISO722-Q1 www.ti.com Copyright © 2008–2011, Texas Instruments Incorporated ...

  • Page 19

    ... TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing ISO722QDRQ1 SOIC PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel Diameter Width (mm) W1 (mm 2500 330.0 12.4 Pack Materials-Page (mm) (mm) (mm) (mm) (mm) Quadrant 6.4 5.2 2.1 8.0 12.0 1-Oct-2011 Pin1 Q1 ...

  • Page 20

    ... Device Package Type ISO722QDRQ1 SOIC PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm 2500 Pack Materials-Page 2 1-Oct-2011 Width (mm) Height (mm) 346.0 346.0 29.0 ...

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  • Page 23

    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...