LTM2882 Dual Isolated RS232 Module Transceiver + Power FEATURES DESCRIPTION n RS232 Transceiver: 2500V for 1 Minute The LTM 2882 is a complete galvanically isolated dual RMS n UL-CSA Recognized File E151738 RS232 Module (micromodule)transceiver. No external n CSA Component Acceptance Notice 5A components are required. A single 3.3V or 5V supply n Isolated DC Power: 5V at Up to 200mA powers both sides of the interface through an integrated, n No External Components Required isolated DC/DC converter. A logic supply pin allows easy n 1.62V to 5.5V Logic Supply for Flexible Digital interfacing with different logic levels from 1.62V to 5.5V, Interfacing independent of the main supply. n High Speed Operation Coupled inductors and an isolation power transformer 1Mbps for 250pF/3k Load provide 2500V of isolation between the line transceiver RMS 250kbps for 1nF/3k Load and the logic interface. This device is ideal for systems 100kbps for 2.5nF/3k TIA/EIA-232-F Load with different grounds, allowing for large common mode n 3.3V (LTM2882-3) or 5V (LTM2882-5) Operation voltages. Uninterrupted communication is guaranteed for n No Damage or Latchup to 10kV HBM ESD on common mode transients greater than 30kV/s. Isolated RS232 Interface or Across Isolation Barrier n This part is compatible with the TIA/EIA-232-F standard. High Common Mode Transient Immunity: 30kV/s n Driver outputs are protected from overload and can be Maximum Continuous Working Voltage: 560V PEAK n shorted to ground or up to 15V without damage. An True RS232 Compliant Output Levels n auxiliary isolated digital channel is available. This channel 15mm 11.25mm BGA and LGA Packages allows configuration for half-duplex operation by control- ling the DE pin. APPLICATIONS n Isolated RS232 Interface Enhanced ESD protection allows this part to withstand up n Industrial Communication to 10kV (human body model) on the transceiver interface n Test and Measurement Equipment pins to isolated supplies and across the isolation barrier n Breaking RS232 Ground Loops to logic supplies without latchup or damage. All registered trademarks and trademarks are the property of their respective owners. TYPICAL APPLICATION Isolated Dual RS232 Module Transceiver 1Mbps Operation 3.3V (LTM2882-3) TIN 5V/DIV 5V (LTM2882-5) V V L CC LTM2882 V 5V CC2 AVAILABLE CURRENT: OFF ON ON DE T1OUT/R1IN 150mA (LTM2882-5) 10V/DIV 100mA (LTM2882-3) DIN DOUT T2OUT/R2IN T1IN T1OUT R1OUT 5V/DIV R2OUT R1OUT R1IN T2IN T2OUT 2882 TA01b 400ns/DIV R2OUT R2IN DRIVER OUTPUTS TIED TO RECEIVER INPUTS TOUT LOAD = 250pF + RIN GND GND2 ROUT LOAD = 150pF 2882 TA01a 2882fh 1 For more information www.linear.com/LTM2882 ISOLATION BARRIERLTM2882 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) TOP VIEW V to GND .................................................. 0.3V to 6V CC 1 2 3 4 5 6 7 8 V to GND .................................................... 0.3V to 6V L R2OUT T1IN DIN ON V V T2IN R1OUT CC L V to GND2 ............................................... 0.3V to 6V CC2 A Logic Inputs B T1IN, T2IN, ON, DIN to GND ........0.3V to (V + 0.3V) L C GND DE to GND2.............................0.3V to (V + 0.3V) CC2 Logic Outputs D R1OUT, R2OUT to GND ...............0.3V to (V + 0.3V) L E DOUT to GND2 ........................0.3V to (V + 0.3V) CC2 F Driver Output Voltage G T1OUT, T2OUT to GND2 ...........................15V to 15V Receiver Input Voltage H R1IN, R2IN to GND2 ............................... 25V to 25V I Operating Temperature Range (Note 4) J LTM2882C .........................................0C T 70C A GND2 K LTM2882I ..................................... 40C T 85C A LTM2882H .................................. 40C T 105C A L Maximum Internal Operating Temperature ............ 125C R2IN R1IN T1OUT DOUT DE V T2OUT CC2 Storage Temperature Range .................. 40C to 125C BGA PACKAGE LGA PACKAGE Peak Package Body Reflow Temperature .............. 245C 32-PIN (15mm 11.25mm 3.42mm) 32-PIN (15mm 11.25mm 2.8mm) T = 125C, T = 125C, JMAX JMAX = 30C/W, = 27.8C/W, = 29C/W, = 27.9C/W, JA JCtop JA JCtop = 19.3C/W, = 24C/W, = 18C/W, = 22.7C/W, JCbottom JB JCbottom JB WEIGHT = 1.1g WEIGHT = 1.1g 2882fh 2 For more information www.linear.com/LTM2882