LTM2883 2 SPI/Digital or I C Module Isolator with Adjustable 12.5V and 5V Regulated Power FEATURES DESCRIPTION n 2500V for One Minute per UL1577 The LTM 2883 is a complete galvanic 6-channel digital RMS UL Recognized File E151738 Module (micromodule) isolator. No external components n Isolated Adjustable DC Power: are required. A single 3.3V or 5V supply powers both 3V to 5V at Up to 30mA sides of the interface through an integrated, isolated DC/ 12.5V at Up to 20mA DC converter. A logic supply pin allows easy interfacing n No External Components Required with different logic levels from 1.62V to 5.5V, independent 2 n SPI (LTM2883-S) or I C (LTM2883-I) Options of 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. 10MHz Digital Isolation The isolated side includes 12.5V and 5V nominal power 4MHz/8MHz SPI Isolation 2 supplies, each capable of providing more than 20mA of 400kHz I C Isolation n load current. Each supply may be adjusted from its nominal 3.3V (LTM2883-3) or 5V (LTM2883-5) Operation n value using a single external resistor. 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) the ground loop is broken, allowing for a large common BGA Package mode voltage range. Communication is uninterrupted for common mode transients greater than 30kV/s. APPLICATIONS All registered trademarks and trademarks are the property of their respective owners. 2 n Isolated SPI or I C Interfaces n Industrial Systems n Test and Measurement Equipment n Breaking Ground Loops TYPICAL APPLICATION Isolated 4MHz SPI Interface LTM2883-5S V CC2 LTM2883 Operating Through 35kV/s CM Transient 5V AT 20mA V CC AV 5V CC2 SCK + V V L SD0 12.5V AT 20mA + AV SCK2 = SD02 ON V 12.5V AT 15mA 2V/DIV AV 2V/DIV SDOE CS CS2 REPETITIVE CS CS COMMON MODE SDI SDI2 SDI SDI TRANSIENTS SCK SCK2 SCK SCK DO2 I2 SDO SDO2 200V/DIV SDO SDO 2883 TA01b DO1 I1 20ns/DIV GND GND2 2883 TA01a 2883fd 1 For more information www.linear.com/LTM2883 ISOLATION BARRIERLTM2883 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 , AV to GND2 ........................... 0.3V to 6V O1, SCK2, SDI2, CS2, CC2 CC2 + V to GND2 ................................................ 0.3V to 16V SCL2 to GND2 ........................0.3V to (V + 0.3V) CC2 V , AV to GND2 .........................................0.3V to 16V Operating Temperature Range (Note 4) Logic Inputs LTM2883C .........................................0C T 70C A DI1, SCK, SDI, CS, SCL, SDA, SDOE, LTM2883I ..................................... 40C T 85C A ON to GND ..................................0.3V to (V + 0.3V) LTM2883H ...................................40C T 105C L A I1, I2, SDA2, Maximum Internal Operating Temperature ............ 125C SDO2 to GND2 ........................0.3V to (V + 0.3V) Storage Temperature Range .................. 40C to 125C CC2 Peak Body Reflow Temperature ............................ 245C PIN CONFIGURATION LTM2883-I LTM2883-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 AV AV I1 GND2 AV AV AV 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, = 30C/W, = 15.7C/W, T = 125C, = 30C/W, = 15.7C/W, JMAX JA JC(BOTTOM) JMAX JA JC(BOTTOM) = 25C/W, = 14.5C/W = 25C/W, = 14.5C/W JC(TOP) JBOARD JC(TOP) JBOARD VALUES DETERMINED PER JESD51-9, WEIGHT = 1.2g VALUES DETERMINED PER JESD51-9, WEIGHT = 1.2g 2883fd 2 For more information www.linear.com/LTM2883