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LTM2884 Datasheet(PDF) 1 Page - Linear Technology |
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LTM2884 Datasheet(HTML) 1 Page - Linear Technology |
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1 / 24 page  LTM2884 1 2884f For more information www.linear.com/LTM2884 Typical applicaTion FeaTures DescripTion Isolated USB Transceiver with Isolated Power The LTM®2884 is a complete galvanically isolated USB 2.0 compatible μModule® (micromodule) transceiver. An upstream supply powers both sides of the interface through an integrated, isolated DC/DC converter. The LTM2884 is ideal for isolation in host, hub, bus split- ter or peripheral device applications. It is compatible with USB 2.0 full speed (12Mbps) and low speed (1.5Mbps) operation.Automaticspeedselectionconfiguresintegrated pull-up resistors on the upstream port to match those sensed on the downstream device. The isolator µModule technology uses coupled inductors and an isolated power transformer to provide 2500VRMS of isolation between the upstream and downstream USB interface.Thisdeviceisidealforsystemsrequiringisolated ground returns or large common mode voltage variations. Uninterrupted communication is guaranteed for common mode transients greater than 30kV/μs. Enhanced ESD protection allows this part to withstand up to ±15kV (human body model) on the USB transceiver interface pins to local supplies and ±15kV through the isolation barrier to supplies without latch-up or damage. Powered 2.5W Isolated Hub Port applicaTions n Isolated USB Transceiver: 2500VRMS for 1 Minute n USB 2.0 Full Speed and Low Speed Compatible n Integrated Isolated DC/DC Converter, External or Bus Powered n Auto-Configuration of Bus Speed n 2.5W (500mA at 5V) Output Power from External Input Supply (VCC = 8.6V to 16.5V) n 1W (200mA at 5V) Output Power from USB Bus Supply (VBUS) n 3.3V LDO Output Supply Signal References VLO, VLO2 n High Common Mode Transient Immunity: 30kV/μs n ESD: ±15kV HBM on USB Interface Pins n 15mm × 15mm × 5mm Surface Mount BGA Package n Isolated USB Interfaces n Host, Hub, or Device Isolation n Industrial/Medical Data Acquisition L , LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Bus Powered 1W Isolated Peripheral Device 2884 TA01a VLO LTM2884 500mA AT 5V ON 4.4V TO 16.5V VBUS VBUS2 8.6V TO 16.5V 100µF VCC SPNDPWR D1+ D1– VCC2 VLO2 D2+ DOWNSTREAM USB PORT D2– GND2 GND 15k 15k + PWR HUB µC 2884 TA01b VLO ON SPNDPWR VCC2 VBUS VBUS GND GND2 GND UPSTREAM USB PORT VCC LTM2884 200mA AT 5V D1+ PERIPHERAL D1– VLO2 D2+ D2– PWR 1.5k |
Similar Part No. - LTM2884_15 |
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Similar Description - LTM2884_15 |
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