MAX12930 Datasheet, PDF (1/20 Pages) Maxim Integrated Products – Two-Channel Digital Isolators

MAX12930/MAX12931
EVALUATION KIT AVAILABLE
Two-Channel Digital Isolators
General Description
The MAX12930/MAX12931 are a family of 2-channel,
3.75kV/5kVRMS digital galvanic isolators using Maxim’s
proprietary process technology. These devices transfer
digital signals between circuits with different power
domains while using as little as 0.65mW per channel at
1Mbps with 1.8V.
The two channels of the MAX12931 transfer data in
opposite directions, and this makes the MAX12931 ideal
for isolating the TX and RX lines of a transceiver. The
MAX12930 features two channels transferring data in the
same direction.
Both devices are available with a maximum data rate of
either 25Mbps or 150Mbps and with the default outputs
that are either high or low. The default is the state the
output assumes when the input is not powered, or if the
input is open-circuit. See the Ordering Information for
suffixes associated with each option. Independent 1.71V
to 5.5V supplies on each side of the isolator also make
the devices suitable for use as level translators.
The MAX12930/MAX12931 are available in an 8-pin,
narrow-body SOIC package. In addition, the MAX12931
is available in a 16-pin, wide-body SOIC package. The
package material has a minimum comparative tracking
index (CTI) of 600V, which gives it a group 1 rating in
creepage tables. All devices are rated for operation at
ambient temperatures of -40°C to +125°C.
Benefits and Features
●● Robust Galvanic Isolation of Digital Signals
• Withstands 5kV_RMS for 60s (VISO) Wide-Body
• Withstands 3.75kV_RMS for 60s (VISO) Narrow-
Body
• Continuously Withstands 848V_RMS (VIOWM)
Wide-Body
• Continuously Withstands 445V_RMS (VIOWM)
Narrow-Body
• Withstands ±10kV Surge between GNDA and
GNDB with 1.2/50µs waveform
• High CMTI (50kV/µs, typ)
●● Options to Support a Broad Range of Applications
• 2 Data Rates (25Mbps/150Mbps)
• 2 Channel Direction Configurations
• 2 Output Default States (High or Low)
●● Low Power Consumption
• 1.3mW per Channel at 1Mbps with V_DD = 3.3V
• 3.3mW per Channel at 100Mbps with V_DD = 1.8V
Applications
●● Fieldbus Communications for Industrial Automation
●● Isolated RS232, RS-485/RS-422, CAN
●● General Isolation Application
●● Battery Management
●● Medical Systems
Functional Diagrams
Ordering Information appears at end of data sheet.
MAX12930
VDDA
IN1
VDDB
OUT1
VDDA
OUT1
MAX12931
VDDB
IN1
IN2
GNDA
OUT2
GNDB
IN2
GNDA
OUT2
GNDB
19-8563; Rev 0; 6/16