XR33194ESBTR

XR33193/XR33194/XR33195 3.3V, 20Mbps, TSOT23 RS-485/RS-422 Transmitters with ±15kV ESD Protection Description The XR33193, XR33194, and XR33195 are a high performance RS-485/RS-422 driver family offered in a tiny TSOT23 package designed to meet the increasing system requirements found in today’s performance serial communication applications. These standalone drivers operate off a single 3.3V supply and meet RS-485 and RS-422 standards for balanced RS-485 and RS-422 serial communications networks. The driver family offers several speed options to maximize performance in different applications. The XR33193 and XR33194 have slew limited outputs for reduced EMI and for error free communication over long or improper/unterminated data cables or multi-drop applications with unterminated stubs. The XR33195 driver operates at data rates up to 20Mbps with tight skew and prop delay spec’s required by demanding high speed applications. All parts in the XR33193/94/95 driver family operate over the extended temperature range of -40°C to 125°C. The XR33193/94/95 driver family is protected by short-circuit detection as well as thermal shutdown and will maintain a high impedance state in shutdown or when powered off. The driver family also includes hot swap circuitry to protect against false transitions on the bus during power-up or live insertion. FEATURES ■■ Date rate options of 250kbps, 2.5Mbps and 20Mbps ■■ Tiny 6-pin TSOT23 package ■■ 3.3V ±5% supply operation ■■ Robust ESD protection ±15kV Human Body Model (bus pins) ±4kV Human Body Model (all other pins) ■■ Short-circuit protection ■■ Thermal protection circuitry ■■ Hot swap glitch protection ■■ Extended -40°C to 125°C operating temperature range ■■ Low current shutdown mode (2uA max) ■■ Lead-free (RoHS compliant) APPLICATIONS ■■ Clock distribution ■■ Robotic control ■■ Space constrained systems ■■ Security camera networks ■■ Industrial and process control equipment For companion standalone RS-485/RS-422 receivers in tiny TSOT23 packages see our XR33180/81/83/84 product datasheet. Ordering Information – back page Typical Application 3.3V 3.3V VCC VCC XR33193/94/95 DI Y 120Ω A XR3318x R D DE Z RO B GND GND Figure 1. Typical Application REV1B 1/12 XR33193/XR33194/XR33195 Absolute Maximum Ratings Operating Conditions Stresses beyond the limits listed below may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Operating temperature range....................... -40°C to 125°C Supply voltage (VCC)....................................... -0.3V to 7.0V Lead temperature (soldering, 10s)............................. 300°C VCC supply range......................................3.135V to 3.465V Storage temperature range.......................... -65°C to 150°C Maximum junction temperature.................................. 150°C Input voltages, DI and DE................................ -0.3V to 7.0V Bus output voltages Y and Z........................................ ±18V Transient voltage pulse through 100Ω, Figure 7........ ±100V Thermal Information 6-pin TSOT23 θJA............................................... 167.3°C/W 6-pin TSOT23 θJC................................................. 61.6°C/W ESD Ratings HBM - Human Body Model (Y and Z pins)................. ±15kV HBM - Human Body Model (all other pins)................... ±4kV Electrical Characteristics Specifications are at TA = 25°C, VCC = 3.3V ± 5% unless otherwise noted. Typical values represent the most likely parametric norm at TA = 25°C, and are provided for reference purposes only. Symbol Parameter Conditions Min Typ Max Units 3.465 V Supply VCC Supply voltage range 3.135 ICC Supply current No load (DE = VCC, DI = 0V) 0.18 0.375 mA ISNDN Supply current in shutdown mode No load (DE = 0V) 0.5 2 µA Logic Inputs/Outputs VIH Logic high input thresholds DI and DE 2 V VIL Logic high input thresholds DI and DE IIN Input current DI and DE -2 No load 3 V RL = 100Ω (RS-422), Figure 4 2 V RL = 54Ω (RS-485), Figure 4 1.5 V -7V ≤ VCM ≤ 12V, Figure 5 1.5 V 0.8 V 2 µA Driver DC Characteristics VOD Differential driver voltage ∆VOD Change in magnitude of differential driver output voltage RL = 54Ω (RS-485) or 100Ω (RS-422), DE = VCC, Figure 4 VCM Driver common-mode output voltage (steady state) RL = 54Ω (RS-485) or 100Ω (RS-422), DE = VCC, DI = VCC or GND, Figure 4 ∆VCM Change in magnitude of driver commonmode output voltage RL = 54Ω (RS-485) or 100Ω (RS-422) VOL IOSD Output leakage Driver short-circuit output current -1 VCC/2 ±0.2 V 3 V 0.2 V Y and Z, VOUT = 12V, DE = 0V, VCC = 3.3V or GND -20 20 µA Y and Z, VOUT = -7V, DE = 0V, VCC = 3.3V or GND -20 20 µA ±250 mA -7V ≤ VOUT ≤ 12V, Figure 6 REV1B 2/12 XR33193/XR33194/XR33195 Electrical Characteristics (Continued) Specifications are at TA = 25°C, VCC = 3.3V ± 5% unless otherwise noted. Typical values represent the most likely parametric norm at TA = 25°C, and are provided for reference purposes only. Symbol Parameter Conditions Min Typ Max Units Thermal Characteristics TTS Thermal shutdown temperature 165 °C TTSH Thermal shutdown hysteresis 40 °C Driver AC Characteristics XR33193 (250kbps) tDPLH Driver propagation delay (low to high) tDPHL Driver propagation delay (high to low) tSKEW Driver propagation delay skew, |tDPLH-tDPHL| tR, tF Differential output rise or fall time CL = 50pF, RL = 54Ω, Figure 8 Device to device propagation delay matching(1) Same power supply, maximum temperature difference between devices = 30°C Maximum data rate CL = 50pF, RL = 54Ω, duty cycle 40 to 60% tDZH Driver enable to output high tDZL Driver enable to output low tDHZ Driver disable from output high tDLZ Driver disable from output low CL = 50pF, RL = 54Ω, Figure 8 400 1300 ns 400 1300 ns 400 ns 1200 ns 900 ns 400 250 kbps 2000 ns 2000 ns 1000 ns 1000 ns 24 70 ns 24 70 ns 40 ns 70 ns 46 ns CL = 100pF, RL = 500Ω, Figure 9 Driver AC Characteristics XR33194 (2.5Mbps) tDPLH Driver propagation delay (low to high) tDPHL Driver propagation delay (high to low) tSKEW Driver propagation delay skew, |tDPLH-tDPHL| tR, tF Differential output rise or fall time CL = 50pF, RL = 54Ω, Figure 8 Device to device propagation delay matching(1) Same power supply, maximum temperature difference between devices = 30°C Maximum data rate CL = 50pF, RL = 54Ω, duty cycle 40 to 60% tDZH Driver enable to output high tDZL Driver enable to output low tDHZ Driver disable from output high tDLZ Driver disable from output low CL = 50pF, RL = 54Ω, Figure 8 CL = 100pF, RL = 500Ω, Figure 9 10 2.5 Mbps 400 ns 400 ns 100 ns 100 ns NOTE: 1. Guaranteed by design; not production tested. REV1B 3/12 XR33193/XR33194/XR33195 Electrical Characteristics (Continued) Specifications are at TA = 25°C, VCC = 3.3V ± 5% unless otherwise noted. Typical values represent the most likely parametric norm at TA = 25°C, and are provided for reference purposes only. Symbol Parameter Conditions Min Typ Max Units 25 ns 25 ns Driver AC Characteristics XR33195 (20Mbps) tDPLH Driver propagation delay (low to high) tDPHL Driver propagation delay (high to low) tSKEW Driver propagation delay skew, |tDPLH-tDPHL| tR, tF CL = 15pF, RL = 54Ω, Figure 8 5 ns TA = -40°C to 125°C, CL = 50pF, RL = 54Ω, Figure 8 18.5 ns TA ≤ 85°C, CL = 50pF, RL = 54Ω, Figure 8 15 ns Device to device propagation delay matching(1) Same power supply, maximum temperature difference between devices = 30°C 25 ns Maximum data rate TA ≤ 85°C, CL = 50pF, RL = 54Ω, duty cycle 40 to 60% 20 Mbps Maximum data rate CL = 50pF, RL = 54Ω, duty cycle 40 to 60% 16 Mbps Differential output rise or fall time tDZH Driver enable to output high tDZL Driver enable to output low tDHZ Driver disable from output high tDLZ Driver disable from output low CL = 100pF, RL = 500Ω, Figure 9 400 ns 400 ns 100 ns 100 ns NOTE: 1. Guaranteed by design; not production tested. REV1B 4/12 XR33193/XR33194/XR33195 Pin Configuration DI 1 VCC 2 DE 3 XR33193 XR33194 XR33195 6 Y 5 GND 4 Z TSOT23-6, Top View Pin Functions Pin Number Pin Name Type Description Driver input. A low on DI forces the Y output low and the Z output high. A high on DI forces the Y output high and the Z output low. XR33193 XR33194 XR33195 1 1 1 DI Input 2 2 2 VCC Supply Power supply (VCC = 3.3V ± 5%). Bypass with 0.1µF capacitor to ground. Driver output enable. A high on DE enables the driver outputs (Y and Z). A low on DE will disable the driver outputs (Y and Z), tri-stating the outputs and putting the device into shutdown (low power) state. The hot swap function is implemented on the DE pin, see Applications Information section for a description of hot swap function. 3 3 3 DE Input 4 4 4 Z Bus Output 5 5 5 GND Supply Ground. 6 6 6 Y Supply ±15kV ESD protected, RS-485/RS-422 non-inverting driver output. ±15kV ESD protected, RS-485/RS-422 inverting driver output. REV1B 5/12 XR33193/XR33194/XR33195 Functional Block Diagram VCC Y DI Z DE XR3319x Figure 2. Functional Block Diagram Applications Information Line Length The RS-485/RS-422 standard covers line lengths up to 4000ft. Maximum achievable line length is a function of signal attenuation and noise. Termination prevents signal reflections by eliminating the impedance mismatches on a transmission line. Line termination is generally used if Hot Swap Capability rise and fall times are shorter than the round trip signal When VCC is first applied the XR3319x family holds the propagation time. Higher output drivers may allow longer driver enable inactive for approximately 10μs. During power cables to be used. ramp-up, other system ICs may drive unpredictable values or tristated lines may be influenced by stray capacitance. The hot ±15kV HBM ESD Protection (Unpowered Part) swap feature prevents the XR3319x family from driving any ESD protection structures are incorporated on all pins to output signal until power has stabilized. After the initial 10μs, protect against electrostatic discharges encountered during the driver enable pin is weakly pulled to the disabled state(low handling and assembly. The driver outputs of the XR3319x for DE) until the first transition. After the first transition, the DE family have extra protection against static electricity. MaxLinear uses state-of-the-art structures to protect these pin operate as high impedance input. If circuit boards are inserted into an energized backplane pins against ESD damage: The XR3319x RS-485/RS-422 devices are part of MaxLinear’s high performance serial interface product line. These standalone drivers operate off a single 3.3V supply and meet RS-485 and RS-422 standards for balanced RS-485 and RS422 serial communications networks. ■■ ±15kV HBM for bus pins to GND (commonly called “live insertion” or “hot swap”) power may suddenly be applied to all circuits. Without the hot ■■ ±4kV HBM for all other pins swap capability, this situation could improperly enable the transceiver’s driver, driving invalid data onto shared buses ESD Test Conditions and possibly causing driver contention or device damage. ESD performance depends on a variety of conditions. Contact MaxLinear for a reliability report that documents Driver Output Protection test setup, methodology and results. Two mechanisms prevent excessive output current and power dissipation caused by faults or by bus contention. First, a driver Low Power Shutdown Mode current limit on the output stage provides immediate protection The XR3319x has a low-power shutdown mode that is against short circuits over the whole common-mode voltage initiated by bringing DE low (to disable the XR33193/94/95). range. Second, a thermal shutdown circuit forces the driver While in shutdown the XR3319x draws less than 2μA of outputs into a high impedance state if junction temperature supply current. becomes excessive. REV1B 6/12 XR33193/XR33194/XR33195 Applications Information (Continued) Product Selector Guide Part Number Data Rate (Mbps) Slew-Rate Limited XR33193 0.25 Yes XR33194 2.5 Yes XR33195 20 No Package 6-pin TSOT23 DI 1 VCC 2 DE 3 D 6 Y 5 GND 4 Z Figure 3. Differential Driver RL 2 DI = OV or VCC VOD D RL 2 Z VCM Y DE = VCC Figure 4. Differential Driver Output Voltage REV1B 7/12 XR33193/XR33194/XR33195 Applications Information (Continued) Z 375Ω DI = OV or VCC VOD D VCM 60Ω 375Ω Y DE = VCC Figure 5. Differential Driver Output Voltage Over Common Mode Z DI = OV or VCC IOSD D Y -7V to 12V V DE = OV or VCC Figure 6. Driver Output Short-Circuit Current DEVICE POWERED ON/OFF Z 100Ω DRIVER Y VTEST 15μs DURATION 1% DUTY CYCLE Figure 7. Transient Overvoltage Test Circuit REV1B 8/12 XR33193/XR33194/XR33195 Applications Information (Continued) DI 3V 1.5V 1.5V OV Z tDPLH tDPHL VOD Y VOD (VY - VZ) tSKEW = tDPLH – tDPHL VOD+ OV VOD– 90% 10% 90% tDR 10% tDF Z DI D VOD RL CL Y DE = VCC Figure 8. Driver Propagation Delay Test Circuit and Timing Diagram REV1B 9/12 XR33193/XR33194/XR33195 Applications Information (Continued) Z TESTING Z: DI = OV VOUT D TESTING Y: DI = VCC Y RL DE DE 3V 1.5V CL 1.5V OV tDZH VOH VOUT tDHZ VOH – 0.25V VOH + VOL 2 VOL VCC RL Z TESTING Z: DI = VCC VOUT D TESTING Y: DI = OV Y CL DE DE 3V 1.5V 1.5V OV tDZL VOUT VOH VOL tDLZ VOH + VOL 2 VOL + 0.25V Figure 9. Driver Enable and Disable Timing Test Circuits and Timing Diagrams REV1B 10/12 XR33193/XR33194/XR33195 Mechanical Dimensions TSOT23-6 DETAIL TOP VIEW SIDE VIEW‐1 SIDE VIEW ‐ 2 TYPICAL RECOMMENDED LAND PATTERN  1. All dimensions are in Millimeters 2. Dimensions and tolerance per Jedec MO‐193 Drawing No. : POD - 00000077 Revision: A.1 REV1B 11/12 XR33193/XR33194/XR33195 Ordering Information(1) Speed (Mbps) Slew Rate Limited XR33193ESBTR 0.250 Yes XR33194ESBTR 2.50 Yes XR33195ESBTR 20 No Part Number Operating Temperature Range Lead-Free Package Packaging Method -40°C to 125°C Yes(2) 6-pin TSOT23 Tape and Reel XR33193ESBEVB XR33194ESBEVB Evaluation board XR33195ESBEVB NOTE: 1. Refer to www.exar.com/XR33193, www.exar.com/XR33194, www.exar.com/XR33195 for most up-to-date Ordering Information. 2. Visit www.exar.com for additional information on Environmental Rating. Revision History Revision Date Description 1A July 2016 Initial release. 1B February 2018 Corporate Headquarters: 5966 La Place Court Suite 100 Carlsbad, CA 92008 Tel.:+1 (760) 692-0711 Fax: +1 (760) 444-8598 www.maxlinear.com Update to MaxLinear logo. Update format and Ordering Information format. Moved ESD ratings to page 2. High Performance Analog: 1060 Rincon Circle San Jose, CA 95131 Tel.: +1 (669) 265-6100 Fax: +1 (669) 265-6101 Email: serialtechsupport@exar.com www.exar.com The content of this document is furnished for informational use only, is subject to change without notice, and should not be construed as a commitment by MaxLinear, Inc.. MaxLinear, Inc. assumes no responsibility or liability for any errors or inaccuracies that may appear in the informational content contained in this guide. Complying with all applicable copyright laws is the responsibility of the user. Without limiting the rights under copyright, no part of this document may be reproduced into, stored in, or introduced into a retrieval system, or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), or for any purpose, without the express written permission of MaxLinear, Inc. Maxlinear, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless MaxLinear, Inc. receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized; (b) the user assumes all such risks; (c) potential liability of MaxLinear, Inc. is adequately protected under the circumstances. MaxLinear, Inc. may have patents, patent applications, trademarks, copyrights, or other intellectual property rights covering subject matter in this document. Except as expressly provided in any written license agreement from MaxLinear, Inc., the furnishing of this document does not give you any license to these patents, trademarks, copyrights, or other intellectual property. Company and product names may be registered trademarks or trademarks of the respective owners with which they are associated. © 2016 - 2018 MaxLinear, Inc. All rights reserved XR33193/94/95_DS_020118 REV1B 12/12