LTM2884 Isolated USB Transceiver with Isolated Power FEATURES DESCRIPTION n LTM2884: 2500V for 1 Minute The LTM 2884 is a complete galvanically isolated USB RMS n LTM2884(a): 3000V for 1 Minute 2.0 compatible Module (micromodule) transceiver. RMS n LTM2884: UL Recognized File E151738 An upstream supply powers both sides of the interface n LTM2884(a): CSA Recognized File 255632 through an integrated, isolated DC/DC converter. n USB 2.0 Full Speed and Low Speed Compatible The LTM2884 is ideal for isolation in host, hub, bus split- n Integrated Isolated DC/DC Converter, External or ter or peripheral device applications. It is compatible with Bus Powered USB 2.0 full speed (12Mbps) and low speed (1.5Mbps) n Auto-Configuration of Bus Speed operation. Automatic speed selection configures inte- n 2.5W (500mA at 5V) Output Power from External grated pull-up resistors on the upstream port to match Input Supply (V = 8.6V to 16.5V) CC those sensed on the downstream device. n 1W (200mA at 5V) Output Power from USB Bus The isolator Module technology uses coupled induc- Supply (V ) BUS n tors and an isolated power transformer to provide isola- 3.3V LDO Output Supply Signal References V , V LO LO2 n tion between the upstream and downstream USB inter- High Common Mode Transient Immunity: 30kV/s n face. This device is ideal for systems requiring isolated ESD: 15kV HBM on USB Interface Pins n ground returns or large common mode voltage variations. 15mm 15mm 5mm Surface Mount BGA Package Uninterrupted communication is guaranteed for common mode transients greater than 30kV/s. APPLICATIONS Enhanced ESD protection allows this part to withstand n Isolated USB Interfaces up to 15kV (human body model) on the USB transceiver n Host, Hub, or Device Isolation interface pins to local supplies and 15kV through the n Industrial/Medical Data Acquisition isolation barrier to supplies without latch-up or damage. All registered trademarks and trademarks are the property of their respective owners. TYPICAL APPLICATION Powered 2.5W Isolated Hub Port Bus Powered 1W Isolated Peripheral Device V 4.4V TO 16.5V 8.6V TO 16.5V BUS 200mA AT 5V 500mA AT 5V V V V V BUS CC LTM2884 BUS CC LTM2884 V V V V CC2 BUS2 V CC2 LO LO + PWR PWR ON 100F ON PERIPHERAL SPNDPWR SPNDPWR V V LO2 LO2 HUB C 1.5k DOWNSTREAM + + USB PORT + + D1 D2 D1 D2 UPSTREAM D1 D2 USB PORT D1 D2 15k 15k GND GND2 GND GND2 2884 TA01b GND 2884 TA01a Rev. C 1 Document Feedback For more information www.analog.com ISOLATION BARRIER ISOLATION BARRIERLTM2884 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) Supply Voltages TOP VIEW V to GND ............................................ 0.3V to 18V CC 1 2 3 4 5 6 7 8 9 10 11 V to GND .......................................... 0.3V to 18V BUS SPND- + V V V D1 D1 ON LO GND BUS CC PWR V to GND2 ....................................... 0.3V to 10V A CC2 V to GND .................................................. 0.3V to 4V LO B V to GND2 ............................................... 0.3V to 4V LO2 C GND ON, SPNDPWR to GND .................0.3V to (V + 0.3V) LO D + D1 , D1 to GND ........................................ 0.3V to 5.3V E + D2 , D2 to GND2 ..................................... 0.3V to 5.3V F Operating Ambient Temperature Range (Note 3) G LTM2884C ............................................... 0C to 70C H LTM2884I ............................................40C to 85C J GND2 LTM2884H ......................................... 40C to 105C K Storage Temperature Range .................. 55C to 125C Maximum Internal Operating Temperature ............ 125C L + V V D2 D2 GND2 LO2 GND2 CC2 Peak Body Reflow Temperature ............................ 245C BGA PACKAGE 44-LEAD (15mm 15mm 5mm) TJMAX = 125C, PCB = JESD51-9 2s2p: = 18.7C/W, = 16C/W, = 5.7C/W, = 5.6C/W JA JCtop JCbottom JB PCB = DC1746A: = 33.5C/W, = 15.7C/W, J = 6.1C/W, = 5.3C/W JA JCtop JCbottom JB HEAT FLOW: = NORMAL, = 100%, = 100%, = 100% JCtop JCbottom JB JA WEIGHT = 2.4g ORDER INFORMATION PART MARKING PACKAGE MSL PART NUMBER PAD OR BALL FINISH DEVICE FINISH CODE TYPE RATING TEMPERATURE RANGE LTM2884CY PBF 0C to 70C LTM2884IY PBF SAC305 (RoHS) LTM2884Y* e1 BGA 4 40C to 85C LTM2884HY PBF 40C to 105C Device temperature grade is indicated by a label on the shipping container. * A lower case a appearing next to the package pin 1 identifier indicates a revised version of the LTM2884. All specifications Pad or ball finish code is per IPC/JEDEC J-STD-609. and typical performance curves are applicable to both versions Recommended BGA PCB Assembly and Manufacturing Procedures. of the LTM2884 unless otherwise noted by LTM2884 or LTM2884(a). BGA Package and Tray Drawings Rev. C 2 For more information www.analog.com