LTM2884 Isolated USB Transceiver with Isolated Power Fea T Descrip T n Isolated USB Transceiver: 2500V for 1 Minute The LTM 2884 is a complete galvanically isolated USB RMS n UL-CSA Recognized File E151738 2.0 compatible Module (micromodule) transceiver. n USB 2.0 Full Speed and Low Speed Compatible An upstream supply powers both sides of the interface n Integrated Isolated DC/DC Converter, External or through an integrated, isolated DC/DC converter. Bus Powered The LTM2884 is ideal for isolation in host, hub, bus split- n Auto-Configuration of Bus Speed ter or peripheral device applications. It is compatible with n 2.5W (500mA at 5V) Output Power from External USB 2.0 full speed (12Mbps) and low speed (1.5Mbps) Input Supply (V = 8.6V to 16.5V) CC operation. Automatic speed selection configures integrated n 1W (200mA at 5V) Output Power from USB Bus pull-up resistors on the upstream port to match those Supply (V ) BUS sensed on the downstream device. n 3.3V LDO Output Supply Signal References V , V LO LO2 n The isolator Module technology uses coupled inductors High Common Mode Transient Immunity: 30kV/s n and an isolated power transformer to provide 2500V ESD: 15kV HBM on USB Interface Pins RMS n of isolation between the upstream and downstream USB 15mm 15mm 5mm Surface Mount BGA Package interface. This device is ideal for systems requiring isolated a T ground returns or large common mode voltage variations. Uninterrupted communication is guaranteed for common n Isolated USB Interfaces mode transients greater than 30kV/s. n Host, Hub, or Device Isolation n Industrial/Medical Data Acquisition Enhanced ESD protection allows this part to withstand L, LT, LTC, LTM, Linear Technology, the Linear logo and Module are registered trademarks of up to 15kV (human body model) on the USB transceiver Linear Technology Corporation. All other trademarks are the property of their respective owners. interface pins to local supplies and 15kV through the isolation barrier to supplies without latch-up or damage. Typical a T 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 2884fb 1 For more information www.linear.com/LTM2884 ISOLATION BARRIER ISOLATION BARRIER ion pplica ions pplica ion uresLTM2884 a Te Maxi Mu M r a T p c F T (Note 1) TOP VIEW Supply Voltages 1 2 3 4 5 6 7 8 9 10 11 V to GND ............................................ 0.3V to 18V CC + SPND- D1 D1 ON V GND V V LO BUS CC PWR V to GND .......................................... 0.3V to 18V BUS A V to GND2 ....................................... 0.3V to 10V CC2 B V to GND .................................................. 0.3V to 4V LO GND C V to GND2 ............................................... 0.3V to 4V LO2 D ON, SPNDPWR to GND .................0.3V to (V + 0.3V) LO + 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 L Maximum Internal Operating Temperature ............ 125C + D2 D2 GND2 V GND2 V LO2 CC2 Peak Body Reflow Temperature ............................ 245C BGA PACKAGE 44-LEAD (15mm 15mm 5mm) T = 125C, JMAX 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, = 6.1C/W, = 5.3C/W JA JCtop JCbottom JB HEAT FLOW: = NORMAL, = 100%, = 100%, = 100% JA JCtop JCbottom JB WEIGHT = 2.4g o r D i n F Ma T