ایزولاتور ایزولاتور دیجیتال

MAXIM MAX22245BAWA+

Manufacturer	MAXIM
Mfr. Part Number	MAX22245BAWA+
Electland Part Code	176406
Electland Part Number	NYE_MAX22245BAWA+
Category	Digital Isolators
Description	CAN, RS232, RS422, RS485 Digital Isolator 5000Vrms 2 Channel 25Mbps 50kV/µs (Typ) CMTI 8-SOIC (0.295", 7.50mm Width)
Datasheet	Download

Product Attributes

Category	Isolators Digital Isolators
Technology	Capacitive Coupling
type	CAN, RS232, RS422, RS485
Isolated Power	No
Number of Channels	2
Inputs - Side 1/Side 2	2/0
Channel Type	Unidirectional
Voltage - Isolation	5000Vrms
Common Mode Transient Immunity (Min)	50kV/µs (Typ)
Data Rate	25Mbps
Propagation Delay tpLH / tpHL (Max)	30.7ns, 32.1ns
Pulse Width Distortion (Max)	4ns
Rise / Fall Time (Typ)	0.8ns, 1ns (Max)
Voltage - Supply	1.71V~5.5V;1.71V~5.5V
Operating Temperature	-40℃~+125℃
Mounting Type	Surface Mount
Package / Case	8-SOIC (0.295", 7.50mm Width)
Supplier Device Package	8-SOIC
Features	Multi-voltage domain interface
CMTI(kV/us)	50kV/us
Isolation Voltage(Vrms)	5000
Data Rate(Max)	25Mbps
Number of Forward Channels	2
Number of Reverse Channels	0
Default Output	High Level
Packaging	SOIC-8
Tariff Active	True
ReachStatus	REACH Unaffected
RohsStatus	ROHS3 Compliant
MoistureSensitivityLevel	3 (168 Hours)
ExportControlClassNumber	EAR99
HtsusCode	8542.39.0070
Weight	0.225g

Introduction

The MAX22245/MAX22246 are a family of 2-channel reinforced, fast, low-power digital galvanic isolators using proprietary process technology. All devices feature reinforced isolation for a withstand voltage rating of 5kVRMS for 60 seconds. Both automotive and general-purpose devices are rated for operation at ambient temperatures of -40°C to +125°C. These devices transfer digital signals between circuits with different power domains, using as little as 0.78mW per-channel at 1Mbps (1.8V supply). The low-power feature reduces system dissipation, increases reliability, and enables compact designs. Devices are available with a maximum data rate of 25Mbps or 200Mbps, and with outputs that are either default high or default low. The devices feature low propagation delay and low clock jitter, which reduces system latency. Independent 1.71V to 5.5V supplies on each side of the isolator also make the devices suitable for use as level translators. The MAX22245 features two channels transferring data in the same direction. The two channels of the MAX22246 transfer data in opposite directions, and this makes the MAX22246 ideal for isolating the Tx and Rx lines of a transceiver.

Features

Reinforced Galvanic Isolation for Digital Signals
8-SOIC with 8mm of Creepage and Clearance
Withstands 5kVRMS for 60s (VISO)
Continuously Withstands 848VRMS (VIOWM)
Withstands ±12.8kV Surge Between GNDA and GNDB with 1.2/50μs Waveform
High CMTI (50kV/μs, typ)
Low Power Consumption
0.78mW per Channel at 1Mbps with VDD_ = 1.8V
1.47mW per Channel at 1Mbps with VDD = 3.3V
3.28mW per Channel at 100Mbps with VDD_ = 1.8V
Low Propagation Delay and Low Jitter
Maximum Data Rate Up to 200Mbps
Low Propagation Delay 7ns (typ) at VDD_ = 3.3V
Clock Jitter RMS 7.5ps (typ)
Safety Regulatory Approvals
UL According to UL1577
cUL According to CSA Bulletin 5A
VDE 0884-11 Reinforced Insulation (Pending)

Applications

Automotive
- Hybrid Electric Vehicle Chargers Battery Management Systems (BMS)
- Inverters
Industrial
- Isolated SPI
- Isolated RS-232, RS-485/RS-422, CAN
- Fieldbus Communications
- Motor Drive