LTM2810 2 7.5kV SPI/Digital or I C Module RMS Isolator with Transformer Driver FEATURES DESCRIPTION n 6-Channel Logic Isolator: 7500V for 1 Minute The LTM 2810 is a complete galvanic digital Module RMS n 16.2mm Creepage (micromodule) isolator. No external components are n CSA UL IEC Recognition Pending required. Individual 3V to 5.5V supplies power each side n 3V to 5.5V Supply Operation of the digital isolator. Separate logic supply pins allow n Transformer Driver with Integrated Isolated Side LDO easy interfacing with different logic levels from 1.62V to 2 n SPI/Digital (LTM2810-S) or I C (LTM2810-I) Options 5.5V, independent of the main supply. n High Common Mode Transient Immunity: 50kV/s Module options are available with compatibility to SPI n High Speed Operation: 2 (LTM2810-S) and I C (LTM2810-I), master mode only, n 10MHz Digital Isolation specifications. n 4MHz/8MHz SPI Isolation 2 n 400kHz I C Isolation The module includes an integrated transformer driver on n Operation Up to 125C (H-Grade) the logic side and an LDO on the isolated side to regulate n 1.62V to 5.5V Logic Supplies for Flexible Digital the rectified transformer output. The LDO output is nomi- Interfacing nally 5V but may be overdriven. n 25kV ESD HBM Across the Isolation Barrier n Coupled inductors provide 7500V of isolation between Maximum Continuous Working Voltage: 1kV , 1.6kV RMS RMS DC n the input and output logic interface. This device is ideal for Low Current Shutdown Mode (<10A) n systems with different ground potentials, allowing unin- 22mm 6.25mm 2.06mm BGA Package terrupted communication through large common mode APPLICATIONS transients faster than 50kV/s. n EV/HEV Systems All registered trademarks and trademarks are the property of their respective owners. n Industrial and Metering Systems n Test and Measurement Equipment n Medical Equipment TYPICAL APPLICATION Isolated 4MHz SPI Interface LTM2810-I Operating Through 70kV/s CM Transients 2.2F SCL2 = I1 ST2 ST1 V IN 5V PV CC SCL 1V/DIV DO1 1V/DIV LTM2810-S V CC V V L L2 GND2-GND 250V/DIV ON ON2 SCK DI1 O1 SCK2 MOSI DI2 O2P MOSI SS DI3 O2N 2810 TA01b DO1E O3 SS MISO DO1 I1 MISO GND GND2 01E 2810 F01a Rev 0 1 Document Feedback For more information www.analog.com ISOLATION BARRIERLTM2810 ABSOLUTE MAXIMUM RATINGS (Note 1) Supply Voltages Isolated Signals PV to GND ............................................ 0.3V to 6V AV , I1, I2, I3, O1, O1E, O2P, O3, ON2, CC L2 V to GND .............................................. 0.3V to 6V SCL2, SDA2 ......................GND2 0.3V to V + 0.3V CC L2 V to GND ................................................ 0.3V to 6V O2N ........................................... GND2 0.3V to 6.3V L Isolated Supply Voltages Operating Temperature Range (Note 4) V to GND2 ........................................... 0.3V to 45V LTM2810C ............................................... 0C to 70C IN V to GND2 ............................................ 0.3V to 6V LTM2810I .............................................40C to 85C L2 Logic Signals LTM2810H ......................................... 40C to 125C DI1, DI2, DI3, DO1, DO1E, DO2P, Maximum Internal Operating Temperature ............ 125C DO3, ON, SCL, ST1, ST2 ....... GND 0.3V to V + 0.3V Storage Temperature Range .................. 55C to 125C L DO2N, SDA .................................. GND 0.3V to 6.3V Peak Body Reflow Temperature ............................260C PIN CONFIGURATION LTM2810-I LTM2810-S TOP VIEW TOP VIEW 1 2 3 4 5 6 1 2 3 4 5 6 DI3 SDA SCL ON V ST1 DI3 DI2 DI1 ON V ST1 L L A A DO3 GND DO1 PV GND DO3 DO2N DO2P DO1 PV GND CC CC B B C C GND V ST2 GND DO1E V ST2 CC CC D D E E F F G G H H J J K K L L M M N N P P R R S S T T U U GND2 V GND2 O1E GND2 V IN IN V V O3 SCL2 AV GND2 O3 O2N O2P O1 AV GND2 L2 L2 W W SDA2 X X I3 I1 ON2 V I3 I2 I1 ON2 V L2 L2 BGA PACKAGE BGA PACKAGE 36-PIN (22mm 6.25mm 2.06mm) 36-PIN (22mm 6.25mm 2.06mm) T = 125C, = 49.6C/W, = 34C/W, T = 125C, = 49.6C/W, = 34C/W, JMAX JA JCBOTOM JMAX JA JCBOTOM = 26C/W, = 33.7C/W = 26C/W, = 33.7C/W JCTOP JB JCTOP JB VALUES DETERMINED PER JESD51-9, WEIGHT = 0.5g VALUES DETERMINED PER JESD51-9, WEIGHT = 0.5g Rev 0 2 For more information www.analog.com