SBASA11B August   2020  – July 2021 AMC3302

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Power Ratings
    6. 6.6  Insulation Specifications
    7. 6.7  Safety-Related Certifications
    8. 6.8  Safety Limiting Values
    9. 6.9  Electrical Characteristics
    10. 6.10 Switching Characteristics
    11. 6.11 Timing Diagram
    12. 6.12 Insulation Characteristics Curves
    13. 6.13 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Analog Input
      2. 7.3.2 Data Isolation Channel Signal Transmission
      3. 7.3.3 Analog Output
      4. 7.3.4 Isolated DC/DC Converter
      5. 7.3.5 Diagnostic Output
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Shunt Resistor Sizing
        2. 8.2.2.2 Input Filter Design
        3. 8.2.2.3 Differential to Single-Ended Output Conversion
      3. 8.2.3 Application Curve
    3. 8.3 What to Do and What Not to Do
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

6.6 Insulation Specifications

over operating ambient temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS VALUE UNIT
GENERAL
CLR External clearance (1) Shortest pin-to-pin distance through air ≥ 8 mm
CPG External creepage (1) Shortest pin-to-pin distance across the package surface ≥ 8 mm
DTI Distance through the insulation Minimum internal gap (internal clearance - capacitive signal isolation) ≥ 21 µm
Minimum internal gap (internal clearance - transformer power isolation) ≥ 120
CTI Comparative tracking index DIN EN 60112 (VDE 0303-11); IEC 60112 ≥ 600 V
Material group According to IEC 60664-1 I
Overvoltage category
per IEC 60664-1		 Rated mains voltage ≤ 600 VRMS I-III
Rated mains voltage ≤ 1000 VRMS I-II
DIN VDE V 0884-11 (VDE V 0884-11): 2017-01(2)
VIORM Maximum repetitive peak isolation voltage At AC voltage (bipolar) 1700 VPK
VIOWM Maximum-rated isolation
working voltage		 At AC voltage (sine wave); time-dependent dielectric breakdown (TDDB) test 1200 VRMS
At DC voltage 1700 VDC
VIOTM Maximum transient
isolation voltage		 VTEST = VIOTM, t = 60 s (qualification test) 6000 VPK
VTEST = 1.2 × VIOTM, t = 1 s (100% production test) 7200 VPK
VIOSM Maximum surge
isolation voltage(3) 		Test method per IEC 60065, 1.2/50-µs waveform,
VTEST = 1.6 × VIOSM = 10000 VPK (qualification)		 6250 VPK
qpd Apparent charge(4) Method a, after input/output safety test subgroup 2 / 3,
Vini = VIOTM, tini = 60 s, Vpd(m) = 1.2 × VIORM, tm = 10 s		 ≤ 5 pC
Method a, after environmental tests subgroup 1,
Vini = VIOTM, tini = 60 s, Vpd(m) = 1.6 × VIORM, tm = 10 s		 ≤ 5
Method b1, at routine test (100% production) and preconditioning (type test),
Vini = VIOTM, tini = 1 s, Vpd(m) = 1.875 × VIORM, tm = 1 s		 ≤ 5
CIO Barrier capacitance,
input to output(5) 		VIO = 0.5 VPP at 1 MHz ~4.5 pF
RIO Insulation resistance,
input to output(5) 		VIO = 500 V at TA = 25°C > 1012 Ω
VIO = 500 V at 100°C ≤ TA ≤ 125°C > 1011
VIO = 500 V at TS = 150°C > 109
Pollution degree 2
Climatic category 40/125/21
UL1577
VISO Withstand isolation voltage VTEST = VISO = 4250 VRMS or 6000 VDC, t = 60 s (qualification),
VTEST = 1.2 × VISO, t = 1 s (100% production test)		 4250 VRMS
(1) Apply creepage and clearance requirements according to the specific equipment isolation standards of an application. Care must be taken to maintain the creepage and clearance distance of a board design to ensure that the mounting pads of the isolator on the printed circuit board (PCB) do not reduce this distance. Creepage and clearance on a PCB become equal in certain cases. Techniques such as inserting grooves, ribs, or both on a PCB are used to help increase these specifications.
(2) This coupler is suitable for safe electrical insulation only within the safety ratings. Compliance with the safety ratings must be ensured by means of suitable protective circuits.
(3) Testing is carried out in air or oil to determine the intrinsic surge immunity of the isolation barrier.
(4) Apparent charge is electrical discharge caused by a partial discharge (pd).
(5) All pins on each side of the barrier are tied together, creating a two-pin device.