LTM2886 2 SPI/Digital or I C Module Isolator with Fixed 5V and Adjustable 5V Regulated Power FEATURES DESCRIPTION n 6-Channel Logic Isolator: 2500V for 1 Minute The LTM 2886 is a complete galvanic digital Module RMS n UL-CSA Recognized File E151738 (micromodule) isolator. No external components are n Isolated DC Power: required. A single 3.3V or 5V supply powers both sides n 3V to 5V Adjustable at Up to 100mA of the interface through an integrated, isolated DC/DC n 5V Fixed at Up to 100mA converter. A logic supply pin allows easy interfacing with n No External Components Required different logic levels from 1.62V to 5.5V, independent of 2 n SPI/Digital (LTM2886-S) or I C (LTM2886-I) Options the main supply. n High Common Mode Transient Immunity: 30kV/s 2 Available options are compliant with SPI and I C (master n High Speed Operation: mode only) specifications. n 10MHz Digital Isolation n The isolated side includes fixed 5V and 5V adjustable 4MHz/8MHz SPI Isolation 2 n power supplies, each capable of providing more than 400kHz I C Isolation n 100mA of load current. The 5V adjustable supply may be 3.3V (LTM2886-3) or 5V (LTM2886-5) Operation n programmed via an external voltage divider. 1.62V to 5.5V Logic Supply n 10kV ESD HBM Across the Isolation Barrier Coupled inductors and an isolation power transformer n Maximum Continuous Working Voltage: 560V PEAK provide 2500V of isolation between the input and out- RMS n Low Current Shutdown Mode (<10A) put logic interface. This device is ideal for systems where n Low Profile (15mm 11.25mm 3.42mm) BGA Package the ground loop is broken, allowing for a large common mode voltage range. Communication is uninterrupted for APPLICATIONS common mode transients greater than 30kV/s. 2 n L, LT, LTC, LTM, Linear Technology, the Linear logo and Module are registered trademarks of Isolated SPI or I C Interfaces Analog Devices, Inc. All other trademarks are the property of their respective owners. n Industrial Systems n Test and Measurement Equipment n Breaking Ground Loops TYPICAL APPLICATION Isolated 4MHz SPI Interface LTM2886 Operating Through 50kV/s CM Transients LTM2886-5S V CC2 SCK 5V AT 100mA V CC SD0 AV 5V CC2 SCK2 = SD02 + 5V/DIV V V L 5V AT 100mA ON V 5V AT 100mA REPETITIVE COMMON MODE TRANSIENTS SDOE GND2 TO GND CS CS2 CS CS SDI SDI2 SDI SDI SCK SCK2 SCK SCK 200V/DIV 2886 TA01b DO2 I2 20ns/DIV SDO SDO2 SDO SDO DO1 I1 GND GND2 2886 TA01a 2886fb 1 For more information www.linear.com/LTM2886 ISOLATION BARRIERLTM2886 ABSOLUTE MAXIMUM RATINGS (Note 1) V to GND .................................................. 0.3V to 6V Logic Outputs CC V to GND .................................................... 0.3V to 6V DO1, DO2, SDO to GND ..............0.3V to (V + 0.3V) L L V , AV to GND2 ................................... 0.3V to 6V O1, SCK2, SDI2, CS2, CC2 CC2 + V to GND2 .................................................. 0.3V to 6V SCL2 to GND2 ........................0.3V to (V + 0.3V) CC2 V to GND2 .................................................. 0.3V to 6V Operating Temperature Range (Note 4) Logic Inputs LTM2886C ............................................... 0C to 70C DI1, SCK, SDI, CS, SCL, SDA, SDOE, LTM2886I ............................................40C to 85C ON to GND ..................................0.3V to (V + 0.3V) LTM2886H ......................................... 40C to 125C L I1, I2, SDA2, Maximum Internal Operating Temperature ............ 125C SDO2 to GND2 ........................0.3V to (V + 0.3V) Storage Temperature Range .................. 55C to 125C CC2 Peak Body Reflow Temperature ............................ 245C PIN CONFIGURATION LTM2886-I LTM2886-S TOP VIEW TOP VIEW 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 DO2 DNC SCL SDA DI1 GND ON V SDO DO2 SCK SDI CS SDOE ON V L L A A B B DO1 GND V DO1 GND V CC CC C C D D E E F F G G H H J J I1 GND2 AV GND2 I1 GND2 AV GND2 CC2 CC2 K K L L + + I2 DNC SCL2 SDA2 O1 V V V SDO2 I2 SCK2 SDI2 CS2 V V V CC2 CC2 BGA PACKAGE BGA PACKAGE 32-PIN (15mm 11.25mm 3.42mm) 32-PIN (15mm 11.25mm 3.42mm) T = 125C, = 25.5C/W, = 9.2C/W, T = 125C, = 25.5C/W, = 9.2C/W, JMAX JA JC(BOTTOM) JMAX JA JC(BOTTOM) = 16.6C/W, = 9.9C/W = 16.6C/W, = 9.9C/W JC(TOP) JBOARD JC(TOP) JBOARD VALUES DETERMINED PER JESD51-9, WEIGHT = 1.2g VALUES DETERMINED PER JESD51-9, WEIGHT = 1.2g 2886fb 2 For more information www.linear.com/LTM2886