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Datasheet LTM2882 (Analog Devices)

ПроизводительAnalog Devices
ОписаниеDual Isolated RS232 μModule Transceiver + Power
Страниц / Страница22 / 1 — FEATURES. DESCRIPTION. RS232 Transceiver: 2500VRMS for 1 Minute. UL-CSA …
Формат / Размер файлаPDF / 658 Кб
Язык документаанглийский

FEATURES. DESCRIPTION. RS232 Transceiver: 2500VRMS for 1 Minute. UL-CSA Recognized. File #E151738

Datasheet LTM2882 Analog Devices

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LTM2882 Dual Isolated RS232 µModule Transceiver + Power
FEATURES DESCRIPTION
n
RS232 Transceiver: 2500VRMS for 1 Minute
The LTM®2882 is a complete galvanically isolated dual n
UL-CSA Recognized File #E151738
RS232 µModule® (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/3kΩ Load
provide 2500VRMS of isolation between the line transceiver
250kbps for 1nF/3kΩ Load
and the logic interface. This device is ideal for systems
100kbps for 2.5nF/3kΩ 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/μs. Isolated RS232 Interface or Across Isolation Barrier n High Common Mode Transient Immunity: 30kV/μs This part is compatible with the TIA/EIA-232-F standard. n Maximum Continuous Working Voltage: 560V Driver outputs are protected from overload and can be PEAK n True RS232 Compliant Output Levels shorted to ground or up to ±15V without damage. An n 15mm × 11.25mm BGA and LGA Packages auxiliary isolated digital channel is available. This channel allows configuration for half-duplex operation by control-
APPLICATIONS
ling the DE pin. 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 µModule Transceiver 1Mbps Operation
3.3V (LTM2882-3) TIN 5V (LTM2882-5) 5V/DIV VL VCC LTM2882 VCC2 5V OFF ON ON DE AVAILABLE CURRENT: 150mA (LTM2882-5) T1OUT/R1IN DIN DOUT 100mA (LTM2882-3) 10V/DIV T2OUT/R2IN T1IN T1OUT R1OUT 5V/DIV R1OUT R1IN R2OUT TION BARRIER T2IN T2OUT ISOLA 400ns/DIV 2882 TA01b R2OUT R2IN DRIVER OUTPUTS TIED TO RECEIVER INPUTS TOUT LOAD = 250pF + RIN GND GND2 ROUT LOAD = 150pF 2882 TA01a 2882fh For more information www.linear.com/LTM2882 1 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS SWITCHING CHARACTERISTICS ISOLATION CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS PIN FUNCTIONS BLOCK DIAGRAM APPLICATIONS INFORMATION TYPICAL APPLICATIONS PACKAGE DESCRIPTION REVISION HISTORY TYPICAL APPLICATIONS RELATED PARTS
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