ISO7421 - 双通道 1/1 1Mbps 数字隔离器

ISO7421是TI德州仪器公司的一款无产品，ISO7421是双通道 1/1 1Mbps 数字隔离器，本站介绍了ISO7421的封装应用图解、特点和优点、功能等，并给出了与ISO7421相关的TI元器件型号供参考。

ISO7421 - 双通道 1/1 1Mbps 数字隔离器 - 无 - 数字隔离器 - 德州仪器

产品特性

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

产品应用

Optocoupler Replacement in:
- Industrial Fieldbus
  - Profibus
  - Modbus
  - DeviceNet™ Data Buses
- Servo Control Interface
- Motor Control
- Power Supplies
- Battery Packs

产品说明

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.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
ISO7420	SOIC (8)	4.90 mm × 3.91 mm
ISO7420M
ISO7421

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