ایزولاتور ایزولاتور دیجیتال

MAXIM MAX22344CAAP+

Manufacturer	MAXIM
Mfr. Part Number	MAX22344CAAP+
Electland Part Code	173593
Electland Part Number	NYE_MAX22344CAAP+
Category	Digital Isolators
Description	CAN, RS422, RS485, SPI Digital Isolator 3750Vrms 4 Channel 200Mbps 50kV/µs CMTI 20-SSOP (0.209", 5.30mm Width)
Datasheet	Download

Product Attributes

Category	Isolators Digital Isolators
Technology	Capacitive Coupling
type	CAN, RS422, RS485, SPI
Isolated Power	No
Number of Channels	4
Inputs - Side 1/Side 2	4/0
Channel Type	Unidirectional
Voltage - Isolation	3750Vrms
Common Mode Transient Immunity (Min)	50kV/µs
Data Rate	200Mbps
Propagation Delay tpLH / tpHL (Max)	9.2ns, 9.4ns
Pulse Width Distortion (Max)	2ns
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	20-SSOP (0.209", 5.30mm Width)
Supplier Device Package	20-SSOP
Features	Channel direction configurable;Output status configurable;Multi-voltage domain interface
CMTI(kV/us)	50kV/us
Isolation Voltage(Vrms)	3750
Data Rate(Max)	200Mbps
Number of Forward Channels	4
Number of Reverse Channels	0
Packaging	SSOP-20
Tariff Active	False
ReachStatus	REACH Unaffected
RohsStatus	ROHS3 Compliant
MoistureSensitivityLevel	1 (Unlimited)
ExportControlClassNumber	EAR99
HtsusCode	8542.39.0070
Weight	0.3925g

Introduction

The MAX22344–MAX22346 are reinforced, fast, lowpower 4-channel digital galvanic isolators using Maxim’s proprietary process technology. These devices transfer digital signals between circuits with different power domains, using as little as 0.74mW per channel at 1Mbps (1.8V supply). All of the devices in the family feature reinforced isolation for a withstand voltage rating of 3.75kVRMS for 60 seconds. The MAX22344–MAX22346 family offers all possible unidirectional channel configurations to accommodate any 4-channel design, including SPI, RS-485, and digital I/O applications. Output enable for the A side of the MAX22345R/S is active-low, making them ideal for isolating a port on a shared SPI bus since the CS signal can directly enable the MISO signal on the isolator. All other output enables in the MAX22344–MAX22346 family are the traditional active-high. Devices are available with a maximum data rate of either 25Mbps or 200Mbps, and feature a selectable default state for the outputs. The default is the state the output assumes when the input is either not powered or is open-circuit. Independent 1.71V to 5.5V supplies on each side of the isolator also make the devices suitable for use as level translators. All of the devices in the MAX22344–MAX22346 family are available in a 20-pin SSOP package with 5.5mm of creepage and clearance. All devices are rated for operation at ambient temperatures of -40°C to +125°C.