Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsLinear ICsMAX14935CAWE+

General Description

The MAX14934–MAX14936 are a family of four-channel,

5kV digital isolators utilizing Maxim’s proprietary process

technology. For applications requiring 2.75kV of isola-

tion, see the MAX14930–MAX14932. The MAX14934–

MAX14936 family transfers digital signals between cir-

cuits with different power domains at ambient tempera-

tures up to +125°C.

The MAX14934–MAX14936 family offers all three pos-

sible unidirectional channel configurations to accom-

modate any four-channel design, including SPI, RS-232,

RS-485, and large digital IO modules. For applications

requiring bidirectional channels, such as I

C, refer to the

MAX14937.

Devices are available with data rates from DC up to

1Mbps, 25Mbps, or 150Mbps. Each device is also avail-

able in either a default high or default low configuration.

The default is the state an output goes to when its input is

unpowered. See the Ordering Information/Selector Guide

for the 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 MAX14934–MAX14936 are available in a 16-pin

wide body (10.3mm x 7.5mm) SOIC package. All devices

are rated for operation at ambient temperatures of -40°C

to +125°C.

Benets and Features

● Robust Galvanic Isolation of Digital Signals

• Withstands 5kV

RMS

for 60s (V

ISO

)

• Constinuously Withstands 848V

RMS

IOWM

)

• 1200V

Repetitive Peak Voltage (V

IORM

)

• Withstands ±10kV Surge per IEC 61000-4-5

● Interfaces Directly with Most Micros and FPGAs

• Accepts 1.71V to 5.5V Supplies

● Many Options Support Broad Applications

• 3 Data Rates (1Mbps, 25Mbps, 150Mbps)

• 3 Channel Direction Conguration

• 2 Defaults (High or Low)

● Low Power Consumption at High Data Rates

At 1.8V:

• 2.5mA per Channel Typical at 1Mbps

• 5.25mA per Channel Typical at 100Mbps

At 3.3V:

• 2.6mA per Channel Typical at 1Mbps

7.1mA per Channel Typical at 100Mbps

Safety Regulatory Approvals Pending

● UL According to UL1577

● cUL According to CSA Bulletin 5A

● VDE 0884-10

Applications

● Fieldbus Communications for Industrial Automation

● Isolated SPI, RS-232, RS-485/RS-422

● General Multichannel Isolation Applications

● Battery Management

● Medical Systems

Ordering Information/Selector Guide appears at end of data

sheet.

19-7067; Rev 0; 9/14

MAX14934–MAX14936 Four-Channel, 5kV

RMS

Digital Isolators

INA1

MAX14934

INA2

INA3

INA4

GNDA GNDB

DDA

DDB

OUTB1

ENB

OUTB2

OUTB3

5kV

RMS

DIGITAL

ISOLATOR

OUTB4

OUTB1

OUTB2

OUTB3

INB1

INA1

MAX14935

INA2

INA3

OUTA1

ENB

ENA

GNDA GNDB

DDA

DDB

5kV

RMS

DIGITAL

ISOLATOR

OUTB1

OUTB2

INB1

INB2

INA1

MAX14936

INA2

OUTA1

OUTA2

ENB

ENA

GNDA GNDB

DDA

DDB

5kV

RMS

DIGITAL

ISOLATOR

Functional Diagram

EVALUATION KIT AVAILABLE

Summary of content (24 pages)

PAGE 1
EVALUATION KIT AVAILABLE MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators General Description The MAX14934–MAX14936 are a family of four-channel, 5kV digital isolators utilizing Maxim’s proprietary process technology. For applications requiring 2.75kV of isolation, see the MAX14930–MAX14932. The MAX14934– MAX14936 family transfers digital signals between circuits with different power domains at ambient temperatures up to +125°C.
PAGE 2
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators Absolute Maximum Ratings VDDA to GNDA, VDDB to GNDB..............................-0.3V to +6V INA_, ENA to GNDA.................................................-0.3V to +6V INB_, ENB to GNDB................................................-0.3V to +6V OUTA_ to GNDA..................................... -0.3V to (VDDA + 0.3V) OUTB_ to GNDB..................................... -0.3V to (VDDB + 0.
PAGE 3
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators DC Electrical Characteristics (continued) (VDDA - VGNDA = +1.71V to +5.5V, VDDB - VGNDB = +1.71V to +5.5V, CL = 15pF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VDDA - VGNDA = +3.3V, VDDB - VGNDB = +3.3V, VGNDA = VGNDB, TA = +25°C, unless otherwise noted.) (Note 2) PARAMETER SYMBOL CONDITIONS 500kHz square wave IDDA 12.
PAGE 4
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators DC Electrical Characteristics (continued) (VDDA - VGNDA = +1.71V to +5.5V, VDDB - VGNDB = +1.71V to +5.5V, CL = 15pF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VDDA - VGNDA = +3.3V, VDDB - VGNDB = +3.3V, VGNDA = VGNDB, TA = +25°C, unless otherwise noted.) (Note 2) PARAMETER SYMBOL CONDITIONS 500kHz square wave IDDA 12.
PAGE 5
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators DC Electrical Characteristics (continued) (VDDA - VGNDA = +1.71V to +5.5V, VDDB - VGNDB = +1.71V to +5.5V, CL = 15pF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VDDA - VGNDA = +3.3V, VDDB - VGNDB = +3.3V, VGNDA = VGNDB, TA = +25°C, unless otherwise noted.) (Note 2) PARAMETER SYMBOL CONDITIONS 500kHz square wave IDDA 12.
PAGE 6
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators DC Electrical Characteristics (continued) (VDDA - VGNDA = +1.71V to +5.5V, VDDB - VGNDB = +1.71V to +5.5V, CL = 15pF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VDDA - VGNDA = +3.3V, VDDB - VGNDB = +3.3V, VGNDA = VGNDB, TA = +25°C, unless otherwise noted.
PAGE 7
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators Dynamic Electrical Characteristics (MAX1493_A/D) (VDDA - VGNDA = +1.71V to +5.5V, VDDB - VGNDB = +1.71V to +5.5V, CL = 15pF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VDDA - VGNDA = +3.3V, VDDB - VGNDB = +3.3V, VGNDA = VGNDB, TA = +25°C, unless otherwise noted.
PAGE 8
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators Dynamic Electrical Characteristics (MAX1493_A/D) (Continued) (VDDA - VGNDA = +1.71V to +5.5V, VDDB - VGNDB = +1.71V to +5.5V, CL = 15pF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VDDA - VGNDA = +3.3V, VDDB - VGNDB = +3.3V, VGNDA = VGNDB, TA = +25°C, unless otherwise noted.) (Notes 2, 3) PARAMETER SYMBOL tSCOLH Propagation Delay Skew Channel-to-Channel (Opposing Direction) tSCOHL CONDITIONS MIN TYP 4.
PAGE 9
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators Dynamic Electrical Characteristics (MAX1493_B/E) (VDDA - VGNDA = +1.71V to +5.5V, VDDB - VGNDB = +1.71V to +5.5V, CL = 15pF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VDDA - VGNDA = +3.3V, VDDB - VGNDB = +3.3V, VGNDA = VGNDB, TA = +25°C, unless otherwise noted.
PAGE 10
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators Dynamic Electrical Characteristics (MAX1493_B/E) (Continued) (VDDA - VGNDA = +1.71V to +5.5V, VDDB - VGNDB = +1.71V to +5.5V, CL = 15pF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VDDA - VGNDA = +3.3V, VDDB - VGNDB = +3.3V, VGNDA = VGNDB, TA = +25°C, unless otherwise noted.) (Notes 2, 3) PARAMETER SYMBOL tSCOLH Propagation Delay Skew Channel to Channel (Opposing Direction) tSCOHL CONDITIONS MIN TYP 4.
PAGE 11
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators Dynamic Electrical Characteristics (MAX1493_C/F) (VDDA - VGNDA = +1.71V to +5.5V, VDDB - VGNDB = +1.71V to +5.5V, CL = 15pF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VDDA - VGNDA = +3.3V, VDDB - VGNDB = +3.3V, VGNDA = VGNDB, TA = +25°C, unless otherwise noted.
PAGE 12
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators Dynamic Electrical Characteristics (MAX1493_C/F) (continued) (VDDA - VGNDA = +1.71V to +5.5V, VDDB - VGNDB = +1.71V to +5.5V, CL = 15pF, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VDDA - VGNDA = +3.3V, VDDB - VGNDB = +3.3V, VGNDA = VGNDB, TA = +25°C, unless otherwise noted.) (Notes 2, 3) PARAMETER SYMBOL tSCOLH Propagation Delay Skew Channel-to-Channel (Opposing Direction) tSCOHL CONDITIONS MIN TYP 4.
PAGE 13
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators ESD Protection PARAMETER ESD Note Note Note Note 2: 3: 4: 5: SYMBOL CONDITIONS Human Body Model, All Pins MIN TYP ±4 MAX UNITS kV All devices are 100% production tested at TA = +125°C. Specifications over temperature are guaranteed by design. Not production tested. Guaranteed by design. All currents into the device are positive. All currents out of the device are negative.
PAGE 14
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators Insulation Characteristics PARAMETER SYMBOL Partial Discharge Test Voltage CONDITIONS Method B1 = VIORM x 1.
PAGE 15
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators Typical Operating Characteristics (VDDA - VGNDA = +3.3V, VDDB - VGNDB = +3.3V, VGNDA = VGNDB, TA = +25°C, unless otherwise noted.) DRIVING ONE CHANNEL ON SIDE A ALL OTHER CHANNELS LOW MAX1493_C/F 2.8 25 2.2 2.0 1.8 VDD_ = 1.8V VDD_ = 2.5V VDD_ = 3.3V VDD_ = 5.0V 1.6 1.4 1.2 1.0 0 25 50 75 100 DRIVING ONE CHANNEL ON SIDE A ALL OTHER CHANNELS LOW MAX14934C/F 20 2.4 SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) 2.6 SIDE B SUPPLY CURRENT vs.
PAGE 16
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators Pin Configurations TOP VIEW VDDA 1 GNDA 2 + 16 VDDB VDDA 1 15 GNDB GNDA 2 14 OUTB1 INA1 3 13 OUTB2 INA2 4 + 16 VDDB VDDA 1 15 GNDB GNDA 2 14 OUTB1 INA1 3 13 OUTB2 INA2 4 + 16 VDDB 15 GNDB 14 OUTB1 INA1 3 INA2 4 INA3 5 12 OUTB3 INA3 5 12 OUTB3 OUTA1 5 12 INB1 INA4 6 11 OUTB4 OUTA1 6 11 INB1 OUTA2 6 11 INB2 I.C.
PAGE 17
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators Typical Operating Circuit 3.3V 5V 0.1µF 24V 0.1µF VDDA VDDB MAX14934 5V OUT ENB INA1 OUTB1 INA2 OUTB2 INA3 OUTB3 INA4 OUTB4 GNDA GNDB 3.3V GPIO PORT 5V 0.1µF 24V DIGITAL I/O 0.1µF VDDA VDDB MAX14934 ENB OUTB1 INA1 OUTB2 INA2 OUTB3 INA3 OUTB4 INA4 GNDB GNDA 5kVRMS ISOLATION www.maximintegrated.
PAGE 18
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators Typical Operating Circuit (continued) 1.8V 3.3V 0.1µF 0.1µF VDDA VDDB MAX14935 µC ENA ENB GPIO INA1 OUTB1 CS SCLK INA2 OUTB2 SCLK MOSI INA3 OUTB3 MOSI MISO OUTA1 INB1 MISO GNDA ADC GNDB 5kVRMS ISOLATION 2.5V 5V 0.1µF 0.1µF VDDA VDDB MAX14936 µC ENA ENB RTS INA1 OUTB1 T1IN Tx INA2 OUTB2 T2IN MAX13223 RS-232 TRANSCEIVER CTS OUTA3 INB3 R1OUT Rx OUTA4 INB4 R2OUT GNDA GNDB 5kVRMS ISOLATION www.
PAGE 19
MAX14934–MAX14936 Detailed Description The MAX14934–MAX14936 are a family of four-channel digital isolators. The MAX14934–MAX14936 family transfers digital signals between circuits with different power domains. The devices are rated for 5kVRMS isolation voltage for 60 seconds. This family of digital isolators offers low-power operation, high electromagnetic interference (EMI) immunity, and stable temperature performance through Maxim’s proprietary process technology.
PAGE 20
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators Table 1. Output Behavior During Undervoltage Conditions VIN__ VDDA VDDB VOUTA_ VOUTB_ 1 Powered Powered 1 1 0 Powered Powered 0 0 X Undervoltage Powered Default Default X Powered Undervoltage Default Default MAX1493_A/B/C INPUT SET TO HIGH MAX1493_A/B/C INPUT SET TO LOW VDDA VDDA 3V/div 3V/div VDDB VDDB OUTA_ OUTA_ OUTB_ OUTB_ 200µs/div 200µs/div Figure 2.
PAGE 21
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators Applications Information present over the entire specified range regardless of the level or presence of the other supply. Power-Supply Sequencing The MAX14934–MAX14936 do not require special powersupply sequencing. The logic levels are set independently on either side by VDDA and VDDB. Each supply can be www.maximintegrated.com Power-Supply Decoupling To reduce ripple and the chance of introducing data errors, bypass VDDA and VDDB with 0.
PAGE 22
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators Ordering Information/Selector Guide PART CHANNEL CONFIGURATION DATA RATE (Mbps) OUTPUT TEMP RANGE (°C) PIN-PACKAGE MAX14934AAWE+** MAX14934BAWE+ 4/0 1 Default high -40 to +125 16 wide SOIC 4/0 25 Default high -40 to +125 16 wide SOIC MAX14934CAWE+ 4/0 150 Default high -40 to +125 16 wide SOIC MAX14934DAWE+** 4/0 1 Default low -40 to +125 16 wide SOIC MAX14934EAWE+ 4/0 25 Default low -40 to +125 16 wide SOIC MAX1493
PAGE 23
MAX14934–MAX14936 Chip Information PROCESS: BiCMOS www.maximintegrated.com Four-Channel, 5kVRMS Digital Isolators Package Information For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO.
PAGE 24
MAX14934–MAX14936 Four-Channel, 5kVRMS Digital Isolators Revision History REVISION NUMBER REVISION DATE 0 9/14 DESCRIPTION Initial release PAGES CHANGED — For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied.