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MAXIM ADUM1252AWA+

Manufacturer
MPN
ADUM1252AWA+
LCSC Part #
C44197888
Packaging
SOIC-8
Customer #
Key Attributes
200kV/us 1.71V~5.5V SOIC-8 Digital Isolators
DatasheetMAXIM ADUM1252AWA+
Alternative Parts2
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In-Stock: 5
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Minimum: 1Multiple: 1Sales Unit: Piece
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QtyUnit PriceTotal Amount
1+$ 10.9817$ 10.98
10+$ 9.6264$ 96.26
30+$ 8.8004$ 264.01
78+$ 8.1089$ 632.49
Standard Packaging78/Full Tube
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Products Specifications

All
TypeDescription
CategoryIsolators/Digital Isolators
ManufacturerMAXIM
PackagingSOIC-8
Peak Output Current(sink)5mA;50mA
CMTI(kV/us)200kV/us
FeaturesBidirectional automatic direction;Open-drain buffer output;Multi-voltage domain interface;Hotswap;Clock stretching
Clock DirectionBidirectional
Maximum I2C Clock2MHz
Voltage - Supply1.71V~5.5V
Operating Temperature-40℃~+125℃
Isolation Voltage(Vrms)5000

Introduction

AI Translation

The ADuM1252 provides two bidirectional open-drain channels for applications requiring bidirectional data transfer on the same line, such as I2C. To prevent latch-up, Side 1 outputs use special buffers that regulate the logic-low voltage to 0.64V, with the input logic-low threshold at least 50mV below the output logic-low voltage. Side 2 uses conventional buffers without regulation of the logic-low output voltage. The ADuM1252 supports independent 1.71V to 5.5V supplies on both Side 1 and Side 2 of the isolator. The device operates at up to 2MHz. An ultralow standby current of 21μA per side makes it ideal for battery-powered systems. The ADuM1252 provides glitch-free bus connection for hot-plug connections on Side 2 by first precharging the bus pins, then monitoring the bus state before connecting Side 1 and Side 2 to determine whether the bus is idle or an I2C stop condition has been detected. The ADuM1252 is available in 8-lead narrow-body and wide-body SOIC packages and an 8-lead MSOP package. The device is rated for an operating ambient temperature range of −40°C to +125°C.

Features

AI Translation
  • Low VOL(MAX) for improved I2C device compatibility
    • Side 1: 0.69V
    • Side 2: 0.4V
  • Ultra-low power consumption for extended battery life
    • 142μA per channel at 400kHz (typical)
  • Wide independent VDD1/VDD2 supply range supporting more logic voltage levels and level translation
    • 1.71V to 5.5V on both sides
  • Enhanced side-2 I/O hot-plug capability
    • Side-2 initial connection during bus idle or stop condition, preventing data corruption
  • Bidirectional I2C data transfer, SCL up to 2MHz
  • Bidirectional SCL for advanced bus topologies
  • Clock stretching and multi-controller support across isolation barrier
  • Strong sink current capability allowing lower pull-up resistor values for higher bus speed
    • Side 1: 5mA
    • Side 2: 50mA
  • Robust digital signal current isolation
    • Continuous working voltage (VIOWM)
      • 8-MSOP: 300 VRMS
      • 8-Narrow-body SOIC: 445 VRMS
      • 8-Wide-body SOIC: 848 VRMS
    • ±10kV surge withstand per IEC 61000-4-5
    • Creepage and clearance
      • 8-MSOP: 3mm
      • 8-Narrow-body SOIC: 4mm
      • 8-Wide-body SOIC: 8mm
  • Safety and regulatory certifications (pending)
    • IEC60747-17 (pending)
      • Enhanced VIORM narrow-body SOIC: 630VPEAK
      • Enhanced VIORM wide-body SOIC: 1200VPEAK
    • UL 1577 (pending)
      • 8-Narrow-body SOIC: 3000VRMS for 1 minute
      • 8-Wide-body SOIC: 5000 VRMS for 1 minute
    • IEC/EN/CSA 62368-1 (pending)
    • IEC/EN/CSA 61010-1 (pending)
    • CAN/CSA-C22.2 No. 14-18 (pending)

Applications

AI Translation
  • Isolated I2C/SMBus interface
  • Battery management systems
  • Power over Ethernet (PoE)
  • Motor control systems

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