ISO7420M 低消費電力、デュアル・チャネル・アイソレータ | TIJ.co.jp

ISO7420M (供給中)

低消費電力、デュアル・チャネル・アイソレータ

低消費電力、デュアル・チャネル・アイソレータ - ISO7420M
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推奨代替製品

  • ISO7720  - このデバイスは、比較対象のデバイスと機能とピン配置が同一ですが、完全に同等ではありません。   絶縁性能の向上、CMTI の強化、拡大電源電圧範囲、耐性 / 堅牢性向上を可能にするピン互換アップグレード製品

概要

The ISO7420, ISO7420M and ISO7421 provide galvanic isolation up to 2500 VRMS for 1 minute per UL. These digital isolators have two isolated channels. Each isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuit from entering the local ground and interfering with or damaging sensitive circuitry. The suffix M indicates wide temperature range (–40°C to 125°C).

These devices have TTL input thresholds and require two supply voltages, 3.3 or 5 V, or any combination. All inputs are 5-V tolerant when supplied from a 3.3-V supply.

Note: The ISO7420 and ISO7421 are specified for signaling rates up to 1 Mbps. Due to their fast response time, under most cases, these devices will also transmit data with much shorter pulse widths. Designers should add external filtering to remove spurious signals with input pulse duration <20 ns if desired.

特長

  • Highest Signaling Rate: 1 Mbps
  • Low Power Consumption, Typical ICC per Channel (3.3-V operation):
    • ISO7420: 1.1 mA, ISO7421: 1.5 mA
  • Low Propagation Delay – 9 ns Typical
  • Low Skew – 300 ps Typical
  • Wide TA Range: –40°C to 125°C (M-Grade)
  • 50-kV/μs Transient Immunity, Typical
  • Over 25-Year Isolation Integrity at Rated Voltage
  • Operates From 3.3-V and 5-V Supply and Logic Levels
  • 3.3-V and 5-V Level Translation
  • Narrow Body SOIC-8 Package
  • Safety and Regulatory Approvals:
    • 4242 VPK Isolation per DIN V VDE V 0884-10 and DIN EN 61010-1
    • 2500 VRMS Isolation for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 61010-1 Standards
    • CQC Certification per GB4943.1-2011

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機能一覧 他の製品と比較 デジタル・アイソレーション

 
Integrated isolated power
Number of channels (#)
Forward/reverse channels
Isolation rating (Vrms)
Surge Voltage Capability (Vpk)
Data rate (Max) (Mbps)
Current consumption per channel (DC) (Typ) (mA)
Current consumption per channel (1 Mbps) (Typ) (mA)
Propagation delay (Typ) (ns)
Default output
VCC (Min) (V)
VCC (Max) (V)
Rating
Operating temperature range (C)
ISO7420M ISO7420 ISO7420E ISO7420FE
No     No     No     No    
2     2     2     2    
2/0     2/0     2/0     2/0    
2500     2500     2500     2500    
4000     4000     4000     4000    
1     1     50     50    
1.1     1.1     1.4     1.4    
1.1     1.1     1.4     1.4    
9     9     7     7    
High     High     High     Low    
3.3     3.3     3.3     3.3    
5     5     5     5    
Catalog     Catalog     Catalog     Catalog    
-40 to 125     -40 to 125     -40 to 125     -40 to 125