ISO1540-Q1

활성

오토모티브, 2.5kVrms, 절연 양방향 클록, 양방향 I2C 아이솔레이터

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
비교 대상 장치보다 업그레이드된 기능을 지원하는 드롭인 대체품
ISO1640-Q1 활성 양방향 클록을 지원하는 차량용, 핫 스왑 가능, 견고한 EMC 양방향 I2C 아이솔레이터 Includes hot-swap capability and improved EMC

제품 상세 정보

Rating Automotive Isolation rating Basic Number of channels 2 Serial data Bidirectional Serial clock Bidirectional Data rate (max) (Mbps) 1 Working isolation voltage (VIOWM) (Vrms) 400 Surge isolation voltage (VIOSM) (VPK) 4000 Transient isolation voltage (VIOTM) (VPK) 4242 Withstand isolation voltage (VISO) (Vrms) 2500 CMTI (min) (kV/µs) 25 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 3 Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable
Rating Automotive Isolation rating Basic Number of channels 2 Serial data Bidirectional Serial clock Bidirectional Data rate (max) (Mbps) 1 Working isolation voltage (VIOWM) (Vrms) 400 Surge isolation voltage (VIOSM) (VPK) 4000 Transient isolation voltage (VIOTM) (VPK) 4242 Withstand isolation voltage (VISO) (Vrms) 2500 CMTI (min) (kV/µs) 25 Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 3 Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM ESD classification level 3A
    • Device CDM ESD classification level C6
  • Functional Safety-Capable
  • Isolated bidirectional, I2C compatible, communication
  • Supports up to 1-MHz operation
  • 3-V to 5.5-V supply range
  • Open-drain outputs With 3.5-mA Side 1 and 35-mA Side 2 sink current capability
  • ±50-kV/µs transient immunity (Typical)
  • Safety-related certifications:
    • 4242-VPK isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 2500-VRMS isolation for 1 minute per UL 1577
    • CSA approval per IEC 62368-1 end equipment standard
    • CQC basic insulation per GB4943.1-2011
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM ESD classification level 3A
    • Device CDM ESD classification level C6
  • Functional Safety-Capable
  • Isolated bidirectional, I2C compatible, communication
  • Supports up to 1-MHz operation
  • 3-V to 5.5-V supply range
  • Open-drain outputs With 3.5-mA Side 1 and 35-mA Side 2 sink current capability
  • ±50-kV/µs transient immunity (Typical)
  • Safety-related certifications:
    • 4242-VPK isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 2500-VRMS isolation for 1 minute per UL 1577
    • CSA approval per IEC 62368-1 end equipment standard
    • CQC basic insulation per GB4943.1-2011

The ISO1540-Q1 and ISO1541-Q1 devices are low-power, bidirectional isolators that are compatible with I2C interfaces. These devices have logic input and output buffers that are separated by Texas Instruments Capacitive Isolation technology using a silicon dioxide (SiO2) barrier. When used with isolated power supplies, these devices block high voltages, isolate grounds, and prevent noise currents from entering the local ground and interfering with or damaging sensitive circuitry.

This isolation technology provides for function, performance, size, and power consumption advantages when compared to optocouplers. The ISO1540-Q1 and ISO1541-Q1 devices enable a complete isolated I2C interface to be implemented within a small form factor.

The ISO1540-Q1 has two isolated bidirectional channels for clock and data lines while the ISO1541-Q1 has a bidirectional data and a unidirectional clock channel. The ISO1541-Q1 is useful in applications that have a single controller while the ISO1540-Q1 is suitable for multi-controller applications. For applications where clock stretching by the target is possible, the ISO1540-Q1 device should be used.

Isolated bidirectional communication is accomplished within these devices by offsetting the low-level output voltage on side 1 to a value greater than the high-level input voltage on side 1, thus preventing an internal logic latch that otherwise would occur with standard digital isolators.

The ISO1540-Q1 and ISO1541-Q1 devices are low-power, bidirectional isolators that are compatible with I2C interfaces. These devices have logic input and output buffers that are separated by Texas Instruments Capacitive Isolation technology using a silicon dioxide (SiO2) barrier. When used with isolated power supplies, these devices block high voltages, isolate grounds, and prevent noise currents from entering the local ground and interfering with or damaging sensitive circuitry.

This isolation technology provides for function, performance, size, and power consumption advantages when compared to optocouplers. The ISO1540-Q1 and ISO1541-Q1 devices enable a complete isolated I2C interface to be implemented within a small form factor.

The ISO1540-Q1 has two isolated bidirectional channels for clock and data lines while the ISO1541-Q1 has a bidirectional data and a unidirectional clock channel. The ISO1541-Q1 is useful in applications that have a single controller while the ISO1540-Q1 is suitable for multi-controller applications. For applications where clock stretching by the target is possible, the ISO1540-Q1 device should be used.

Isolated bidirectional communication is accomplished within these devices by offsetting the low-level output voltage on side 1 to a value greater than the high-level input voltage on side 1, thus preventing an internal logic latch that otherwise would occur with standard digital isolators.

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기술 자료

설계 및 개발

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평가 보드

ISO154XEVM — ISO154xEVM 평가 모듈

The ISO154xEVM Evaluation Module has been designed to allow the user to evaluate the electrical parameter performance and features of TI's ISO154x family of 3kV I2C isolators which are based on TI's capacitive isolation technology. The ISO154xEVM Evaluation Module provides for the evaluation of:

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사용 설명서: PDF | HTML
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시뮬레이션 모델

ISO1540 IBIS Model

SLLM189.ZIP (31 KB) - IBIS Model
패키지 CAD 기호, 풋프린트 및 3D 모델
SOIC (D) 8 Ultra Librarian

주문 및 품질

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  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
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