19-0879; Rev 0; 7/07 +5.0V, 15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in DFN The MAX13181E-MAX13184E are full-duplex and selectable half-/full-duplex RS-485 transceivers in a tiny 2mm x 2mm DFN package. These devices are designed for space-constrained applications by including extended ESD protection to 15kV per Human Body Model (HBM) and integrating pullup/pulldown resistors on the DE, RE and H/F inputs to reduce external components. The MAX13182E/MAX13184E feature a low-current shutdown mode for power-sensitive applications. These devices have a 1/8 unit-load input receiver that allows up to 256 transceivers on the bus. The MAX13181E/MAX13182E feature reduced slew-rate drivers to minimize EMI and reflections that are caused by improperly terminated cables. The slew-rate limited MAX13181E/MAX13182E allow error-free data transmission up to 250kbps. The MAX13183E/MAX13184E feature full-speed drivers, allowing data rates of up to 16Mbps. The MAX13182E/MAX13184E are configured for fullduplex operation, while the MAX13181E/MAX13183E feature pin-selectable half- or full-duplex operation. All driver outputs and receiver inputs include extended ESD protection. The MAX13181E-MAX13184E are available in a tiny 10pin, 2mm x 2mm DFN. The MAX13183E/MAX13184E are also available in industry-standard 14-pin SO packages. The devices operate over the extended -40C to +85C temperature range. Features o Available in Tiny, 10-Pin, 2mm x 2mm, DFN and 14-Pin SO Packages o +5.0V Operation o Extended ESD Protection 15kV Human Body Model 12kV IEC 61000-4-2 Air-Gap Disharge 6kV IEC 61000-4-2 Contact Disharge o Slew-Rate Limiting Facilitates Error-Free Data Transmission (MAX13181E/MAX13182E) o 2.5A (typ) Low-Current Shutdown Mode o 1/8-Unit Load Allows Up to 256 Transceivers on the Bus Pin Configurations TOP VIEW A 10 Security System Motor Drive Control Instrumentation Z 8 Y 7 GND 6 A 10 MAX13181E MAX13183E B 9 Y 7 Z 8 GND 6 MAX13182E MAX13184E + + 1 Applications Industrial Control B 9 2 3 4 5 VCC RO H/F DE DI 1 2 VCC RO DFN 3 4 5 RE DE DI DFN Pin Configurations continued at end of data sheet. Telecom Selector Guide PART HALF/FULL DUPLEX MAXIMUM DATA RATE SLEW-RATE LIMITED LOW-POWER SHUTDOWN RECEIVER ENABLE MAX13181E Selectable 250 kbps Yes No No MAX13182E Full 250 kbps Yes Yes Yes MAX13183E Selectable 16 Mbps No No No MAX13184E Full 16 Mbps No Yes Yes Ordering Information PART TEMP RANGE PIN-PACKAGE MAX13181EELB+ -40C to +85C MAX13182EELB+ -40C to +85C MAX13182EESD+ -40C to +85C 14 SO +Denotes a lead-free package. TOP MARK PKG CODE 10 DFN ABC L1022-1 10 DFN ABD L1022-1 -- S14-1 Ordering Information continued at end of data sheet. ________________________________________________________________ Maxim Integrated Products For pricing delivery, and ordering information please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. 1 MAX13181E-MAX13184E General Description MAX13181E-MAX13184E +5.0V, 15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in DFN ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND.) Supply Voltage (VCC) ...............................................-0.3V to +6V Control Voltage (RE, DE, DI, H/F).............................-0.3V to +6V Driver Output Voltage (A, B, Y, Z) ..........................-8V to +12.5V Receiver Input Voltage (A, B).................................-8V to +12.5V Receiver Input Voltage Full-Duplex (A, B)..............-8V to +12.5V Receiver Output Voltage (RO)................... -0.3V to (VCC + 0.3V) Short-Circuit Duration (A, B, Y, Z) to GND .................Continuous Continuous Power Dissipation (TA = +70C) 10-Pin DFN (derate 5mW/C above +70C ) .............403mW 14-Pin SO (derate 8.3mW/C above +70C )...............667mW Operating Temperature Range ...........................-40C to +85C Storage Temperature Range .............................-65C to +150C Junction Temperature ......................................................+150C Lead Temperature (soldering, 10s) .................................+300C Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. DC ELECTRICAL CHARACTERISTICS (VCC = +5V 10%, TA =TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS V DRIVER Differential Driver Output Change in Magnitude of Differential Output Voltage Driver Common-Mode Output Voltage Change in Magnitude of Common-Mode Voltage VOD VOD VOC VOC RL = 100 (RS422), Figure 1 2 VCC RL = 54 (RS485), Figure 1 1.5 VCC VCC RL = 100 or 54, Figure 1, (Note 2) 0.2 V 3 V 0.2 V RL = 100 or 54, Figure 1 VIH DE, DI, RE, H/F Input-Low Voltage VIL DE, DI, RE, H/F VHYS DE, DI, RE, H/F Internal Pullup Resistance Internal Pulldown Resistance Output Leakage (Y and Z) Full-Duplex 2 V 0.8 100 V mV Internal pullup RE 125 400 k RIN_DWN Internal pulldown DE, H/F 125 400 k IO DE = GND, VCC = GND or 5.5V RIN_UP Driver Short-Circuit Output Current Threshold (Note 3) IOSD Driver Short-Circuit Foldback Output Current (Note 3) IOSDF Thermal-Shutdown Threshold TTS Thermal-Shutdown Hysteresis TTSH Input Current (A and B) IA, B 2 VCC / 2 RL = 100 or 54, Figure 1, (Note 2) Input-High Voltage Input Hysteresis V No load VIN = +12V VIN = -7V 125 -100 0 VOUT 12V 40 250 -7 VOUT VCC -250 -40 (VCC - 1V) VOUT 12V 20 -7V VOUT 1V -20 0 VOUT 12V DE = GND, VCC = GND or 5.5V mA mA 140 C 15 C VIN = +12V VIN = -7V A 125 -100 _______________________________________________________________________________________ A +5.0V, 15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in DFN (VCC = +5V 10%, TA =TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS -200 0 +200 mV RECEIVER Receiver Differential Threshold Voltage VTH -7V VCM +12V, Figure 2 Receiver Input Hysteresis VTH VA + VB = 0, Figure 2 RO Output-High Voltage VOH IO = -1mA, Figure 2 RO Output-Low Voltage VOL IO = 1mA, Figure 2 Tri-State Output Current at Receiver IOZR 0 VO VCC, Figure 2 -1 Receiver-Input Resistance RIN -7V VCM +12V, Figure 2 96 Receiver-Output Short-Circuit Current IOSR 0 VRO VCC, Figure 2 -80 25 mV VCC 0.6 V 0.4 +1 V A k +80 mA SUPPLY CURRENT Supply Current ICC Shutdown Current (MAX13182E/MAX13184E Only) ISHDN No load, RE = 0, DE = VCC 2 3 No load, RE = VCC, DE = VCC 2 3 No load, RE = 0V, DE = 0 or leave unconnected 2 3 RE = VCC or leave unconnected, DE = GND or leave unconnected 2.5 10 Human Body Model 15 IEC 61000-4-2 Contact Discharge 6 IEC 61000-4-2 Air-Gap Discharge 12 mA A ESD PROTECTION ESD Protection for Y, Z, A and B kV DRIVER SWITCHING CHARACTERISTICS--MAX13181E/MAX13182E (SLEW-RATE LIMITED TO 250kbps) (VCC = +5V 10%, TA =TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS tDPLH CL = 50pF, RL = 54, Figure 3 200 1000 tDPHL CL = 50pF, RL = 54, Figure 3 200 1000 Driver Differential Output Rise or Fall Time tDR, tDF CL = 50pF, RL = 54, Figure 3 400 1200 ns Differential Driver Output Skew (tDPLH - tDPHL) tDSKEW CL = 50pF, RL = 54, Figure 3 140 ns Driver Propagation Delay Maximum Data Rate 250 ns kbps Driver Enable to Output High tDZH Figure 4a 2500 ns Driver Enable to Output Low tDZL Figure 4b 2500 ns Driver Disable Time from Low tDLZ Figure 4b 100 ns Driver Disable Time from High tDHZ Figure 4a 100 ns 5500 ns 5500 ns 600 ns Driver Enable from Shutdown to Output High tDZH(SHDN) (MAX13182E) Figure 4a Driver Enable from Shutdown to Output Low tDZL(SHDN) (MAX13182E) Figure 4b Time to Shutdown tSHDN (MAX13182E) 50 200 _______________________________________________________________________________________ 3 MAX13181E-MAX13184E DC ELECTRICAL CHARACTERISTICS (continued) MAX13181E-MAX13184E +5.0V, 15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in DFN DRIVER SWITCHING CHARACTERISTICS--MAX13183E/MAX13184E (MAXIMUM DATA RATE OF 16Mbps) (VCC = +5V 10%, TA =TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS tDPLH CL = 50pF, RL = 54, Figure 3 25 tDPHL CL = 50pF, RL = 54, Figure 3 25 Driver Differential Output Rise or Fall Time tDR, tDF CL = 50pF, RL = 54, Figure 3 15 ns Differential Driver Output Skew (tDPLH - tDPHL) tDSKEW CL = 50pF, RL = 54, Figure 3 8 ns Driver Propagation Delay Maximum Data Rate 16 ns Mbps Driver Enable to Output-High tDZH Figures 1 and 4a 50 ns Driver Enable to Output-Low tDZL Figures 1 and 4b 50 ns Driver Disable Time from Low tDLZ Figures 1 and 4b 50 ns Driver Disable Time from High tDHZ Figures 1 and 4a 50 ns Driver Enable from Shutdown to Output High tDZH (SHDN) Figures 1 and 4a (MAX13184E) 2200 ns Driver Enable from Shutdown to Output Low tDZL (SHDN) Figures 1 and 4b (MAX13184E) 2200 ns 600 ns Time to Shutdown tSHDN (MAX13184E) 50 200 RECEIVER SWITCHING CHARACTERISTICS (VCC = +5V 10%, TA =TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25C.) (Note 1) PARAMETER Receiver Propagation Delay Receiver Output Skew (tRPLH - tRPHL) SYMBOL tRPLH tRPHL tRSKEW CONDITIONS MIN CL = 15pF, Figure 5 TYP MAX 40 75 40 75 CL = 15pF, Figure 5 Maximum Data Rate 8 16 UNITS ns ns Mbps Receiver Enable to Output Low tRZL (MAX13182E/MAX13184E) Figures 2 and 6 50 ns Receiver Enable to Output High tRZH (MAX13182E/MAX13184E) Figures 2 and 6 50 ns Receiver Disable Time from Low tRLZ (MAX13182E/MAX13184E) Figures 2 and 6 50 ns Receiver Disable Time from High tRHZ (MAX13182E/MAX13184E) Figures 2 and 6 50 ns Receiver Enable from Shutdown to Output High tRZH (SHDN) (MAX13182E/MAX13184E) Figures 2 and 6 2200 ns Receiver Enable from Shutdown to Output Low tRZL (SHDN) (MAX13182E/MAX13184E) Figures 2 and 6 2200 ns Note 1: All currents into the device are positive. All currents out of the device are negative. All voltages are referred to device ground, unless otherwise noted. DFN devices are production tested at +25C. Overtemperature limits are guaranteed by design. Note 2: VOD and VOC are the changes in VOD and VOC, respectively, when the DI input changes state. Note 3: The short-circuit output current applies to peak current just prior to foldback current limiting. The short-circuit foldback output current applies during current limiting to allow a recovery from bus contention. 4 _______________________________________________________________________________________ +5.0V, 15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in DFN MAX13181E-MAX13184E Y RL VOD A (Y) 2 RO B (Z) VOH VOL CL RL 2 CL VOC GND Z Figure 2. Receiver Differential Input Figure 1. Driver Differential Output 3V DI 1.5V 0 tDPLH tDPHL 1/2 VO Z VO Y 1/2 VO VO VDIFF 0 -VO VDIFF = V (Y) - V (Z) 90% 10% 90% 10% tDF tDR tDSKEW = | tDPLH - tDPHL Figure 3. Driver Propagation Delay S1 0 OR 3V D OUT CL 50pF GENERATOR RL = 500 50 VCC VCC / 2 DE tDZH , tDZH(SHDN) 0 0.5V OUT VOH VOM = (0 + VOH) / 2 0 tDHZ Figure 4a. Driver Enable and Disable Times (tDHZ, tDZH, tDZH(SHDN)) _______________________________________________________________________________________ 5 MAX13181E-MAX13184E +5.0V, 15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in DFN VCC RL = 500 S1 0 OR 3V D OUT CL 50pF DE GENERATOR 50 VCC VCC / 2 DE tDZL , tDZL(SHDN) 0 tDLZ VCC VOH VOM = (VOL + VCC) / 2 OUT 0.5V VOL Figure 4b. Driver Enable and Disable Times (tDLZ, tDZL, tDZL(SHDN)) A (Y) +1V B (Z) -1V tRPLH VOH RO VOL tRPHL 1.5V tRSKEW = | tRPLH - tRPHL | THE RISE TIME AND FALL TIME OF INPUTS A, B, Y AND Z < 4ns Figure 5. Receiver Propagation Delay 6 _______________________________________________________________________________________ +5.0V, 15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in DFN MAX13181E-MAX13184E S1 +1.5V S3 5V 1k -1.5V VID R CL 15pF GENERATOR S2 50 S1 OPEN S2 CLOSED S3 = +1.5V S1 CLOSED S2 OPEN S3 = -1.5V 5V 5V 1.5V RE RE 0 0 tRZH, tRZH(SHDN) tRZL, tRZL(SHDN) VOH RO VCC VOH / 2 (VOL + VOH) / 2 RO 0 S1 OPEN S2 CLOSED S3 = +1.5V VOL S1 CLOSED S2 OPEN S3 = -1.5V 5 2.5V 2.5V RE tRHZ 5V 0 RE 0 tRLZ 5V VOH 0.5V RO 0 RO 0.5V VOL Figure 6. Receiver Disable Time _______________________________________________________________________________________ 7 Typical Operating Characteristics (VCC = +5V, TA = 25C, unless otherwise noted.) OUTPUT CURRENT vs. RECEIVER OUTPUT HIGH VOLTAGE 2 -15 10 35 60 85 12 0 0 1 2 3 4 0 5 1 2 3 4 5 RECEIVER OUTPUT HIGH VOLTAGE vs. TEMPERATURE RECEIVER OUTPUT LOW VOLTAGE vs. TEMPERATURE DRIVER DIFFERENTIAL OUTPUT CURRENT vs. DIFFERENTIAL OUTPUT VOLTAGE 4.8 4.6 4.4 4.2 4.0 IO = -1mA 0.4 0.3 0.2 0.1 0 -15 10 35 60 85 80 MAX13181E-4E toc06 5.0 RECEIVER OUTPUT LOW VOLTAGE (V) 5.2 0.5 DRIVER DIFFERENTIAL OUTPUT CURRENT (mA) RECEIVER OUTPUT LOW VOLTAGE (V) MAX13181E-4E toc05 RECEIVER OUTPUT HIGH VOLTAGE (V) MAX13181E-4E toc04 TEMPERATURE (C) IO = -1mA -40 18 6 0 -40 60 40 20 0 -40 -15 10 35 60 85 0 1 2 3 4 5 TEMPERATURE (C) DIFFERENTIAL OUTPUT VOLTAGE (V) DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs. TEMPERATURE OUTPUT CURRENT vs. TRANSMITTER OUTPUT HIGH VOLTAGE OUTPUT CURRENT vs. TRANSMITTER OUTPUT LOW VOLTAGE 4 3 2 1 80 60 40 20 120 MAX13181E-4E toc09 RL = 54 OUTPUT CURRENT (mA) 5 MAX13181E-4E toc07 TEMPERATURE (C) 100 OUTPUT CURRENT (mA) RECEIVER OUTPUT HIGH VOLTAGE (V) 8 24 4 0 80 60 40 20 0 0 0 -40 -15 10 35 TEMPERATURE (C) 8 12 30 MAX13181E-4E toc03 16 1 5.4 MAX13181E-4E toc02 20 OUTPUT CURRENT (mA) 3 OUTPUT CURRENT vs. RECEIVER OUTPUT LOW VOLTAGE MAX13181E-4E toc08 SUPPLY CURRENT (mA) 4 NO LOAD RE = VCC DE = VCC OUTPUT CURRENT (mA) 5 MAX13181E-4E toc01 SUPPLY CURRENT vs. TEMPERATURE DRIVER DIFFERENTIAL OTUPUT VOLTAGE (V) MAX13181E-MAX13184E +5.0V, 15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in DFN 60 85 -8 -6 -4 -2 0 2 4 TRANSMITTER OUTPUT HIGH VOLTAGE (V) 6 0 2 4 6 8 10 TRANSMITTER OUTPUT LOW VOLTAGE (V) _______________________________________________________________________________________ 12 +5.0V, 15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in DFN DRIVER PROPAGATION DELAY vs. TEMPERATURE (250kbps) (MAX13182E) 6 4 2 600 tDPHL 500 400 tPDLH 300 200 -40 -15 10 35 60 -15 RECEIVER PROPAGATION DELAY (ns) 40 tRPLH 30 20 tRPHL 10 tDPHL 20 tPDLH 10 10 35 60 85 -40 -15 10 35 60 TEMPERATURE (C) RECEIVER PROPAGATION DELAY vs. TEMPERATURE (16Mbps) (MAX13184E) RECEIVER PROPAGATION DELAY (250kbps) (MAX13182E) 50 MAX13181E-4E toc13 RECEIVER PROPAGATION DELAY (ns) CL = 15pF 30 TEMPERATURE (C) TEMPERATURE (C) RECEIVER PROPAGATION DELAY vs. TEMPERATURE (250kbps) (MAX13182E) 40 0 -40 85 CL = 50pF RL = 54 85 MAX13181E-4E toc15 MAX13181E-4E toc14 0 50 50 MAX13181E-4E toc12 DRIVER PROPAGATION DELAY (ns) 8 CL = 50pF RL = 54 DRIVER PROPAGATION DELAY vs. TEMPERATURE (16Mbps) (MAX13184E) DRIVER PROPAGATION DELAY (ns) 700 MAX13181E-4E toc10 SHUTDOWN CURRENT (A) 10 MAX13181E-4E toc11 SHUTDOWN CURRENT vs. TEMPERATURE CL = 15pF 40 CL = 15pF MAX13181E-MAX13184E Typical Operating Characteristics (continued) (VCC = +5V, TA = 25C, unless otherwise noted.) VA - V B 2V/div tRPLH 30 20 RO 2V/div tRPHL 10 0 0 -40 -15 10 35 60 -40 85 -15 10 35 60 TEMPERATURE (C) TEMPERATURE (C) DRIVER PROPAGATION DELAY (250kbps) (MAX13182E) RECEIVER PROPAGATION DELAY (16Mbps) (MAX13184E) DRIVER PROPAGATION DELAY (16Mbps) (MAX13184E) MAX13181E-4E toc18 MAX13181E-4E toc17 MAX13181E-4E toc16 CL = 50pF RL = 54 CL = 15pF CL = 50pF RL = 54 DI 2V/div DI 2V/div VA - V B 2V/div RO 2V/div VY - V Z 2V/div 400ns/div 400ns/div 85 10ns/div VY - V Z 2V/div 10ns/div _______________________________________________________________________________________ 9 MAX13181E-MAX13184E +5.0V, 15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in DFN Functional Tables MAX13181E/MAX13183E MAX13182E/MAX13184E TRANSMITTING TRANSMITTING INPUT INPUT OUTPUT OUTPUT RE DE DI Z Y DE DI Z Y X 1 0 1 0 1 0 1 0 X 1 1 0 1 1 1 0 1 High impedance High impedance X High impedance High impedance 0 0 X 1 0 X 0 RECEIVING Shutdown (high impedance) INPUT RECEIVING H/F DE OUTPUT OUTPUT A-B Y-Z RO 1 0 X 200mV X RE DE A-B RO 0 X -200mV X 0 0 X 200mV 1 1 0 X 200mV 1 0 X -200mV 0 1 0 X -200mV 0 1 1 X High impedance 1 0 X Shutdown (high impedance) INPUT X = Don't care. Functional Diagram VCC MAX13182E MAX13184E RO R MAX13181E MAX13183E VCC A A RO B VCC RIN_UP B RE H/F RIN_DWN DE Y RIN_DWN DI Z DI D Y GND 10 Z DE RIN_DWN GND ______________________________________________________________________________________ +5.0V, 15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in DFN MAX13181E/ MAX13183E MAX13182E/ MAX13184E MAX13182E/ MAX13184E NAME FUNCTION SO DFN 1 1 14 VCC Positive Supply, VCC = +4.5V to +5.5V. Bypass VCC with a 0.1F ceramic capacitor to ground. 2 2 2 RO Receiver Output. When RE is low and (A-B) 200mV, RO is high; if (A-B) -200mV, RO is low. -- 3 3 RE Receiver Output Enable. Drive RE low to enable RO. Drive RE high to disable the receiver. RE input has an internal pullup resistor. 3 -- -- H/F Half-/Full-Duplex Selector Input. Connect H/F to VCC for half-duplex mode. Leave H/F unconnected or connect H/F to GND for full-duplex mode. H/F input has an internal pulldown resistor. 4 4 4 DE Driver Output Enable. Drive DE high to enable the driver. Driver output is high impedance when DE is low. DE input has an internal pulldown resistor. 5 5 5 DI Driver Input. With DE high, a low on DI forces noninverting output low and inverting output high. Similarly, a high on DI forces noninverting output high and inverting output low. 6 6 6, 7 GND 7 7 9 Y 8 8 10 Z Inverting Driver Output. (Also inverting receiver input in half-duplex mode.) 9 9 11 B Inverting Receiver Input 10 10 12 A Noninverting Receiver Input -- -- 1, 8, 13 N.C. Ground Noninverting Driver Output. (Also noninverting receiver input in half-duplex mode.) No Connection. N.C. is not internally connected. Detailed Description The MAX13181E-MAX13184E high-speed transceivers for RS-485 communication contain one driver and one receiver. These devices feature 1/8 unit-load input impedance that allows up to 256 receivers on the bus. All devices feature integrated pullup/pulldown resistors on the DE, RE, and H/F inputs to reduce external components. The MAX13182E/MAX13184E feature a lowcurrent shutdown mode for power-sensitive applications. The MAX13181E/MAX13182E feature reduced slew-rate drivers to minimize EMI and reflections that are caused by improperly terminated cables. The slew-rate limited MAX13181E/MAX13182E allow error-free transmission up to 250Kbps. The MAX13183E/MAX13184E feature full-speed drivers allowing data rate of up to 16Mbps. The MAX13182E/MAX13184E are configured for fullduplex operation. The MAX13181E/MAX13183E feature selectable half- or full-duplex operation by driving H/F input high or low, respectively. All devices operate from a single +5.0V supply. 15kV ESD Protection As with all Maxim devices, ESD-protection structures are incorporated on all pins to protect against electrostatic discharges encountered during handling and assembly. The driver outputs of the MAX13181E- MAX13184E family have extra protection against static electricity. Maxim's engineers have developed state-ofthe-art structures to protect these driver outputs against ESD of 15kV with VCC = 5V, and regardless of the logic state of DE and DI. The ESD-protected pins are tested with reference to the ground pin in a powered-down condition. They are tested to 15kV using the Human Body Model, 12kV using the IEC 61000-4-2 Air-Gap Discharge Model, and to 6kV using the IEC 61000-4-2 Contact Discharge Model. ESD Test Conditions ESD performance depends on a variety of conditions. Contact Maxim for a reliability report that documents test setup, test methodology, and test results. ______________________________________________________________________________________ 11 MAX13181E-MAX13184E Pin Description RC 1M CHARGE-CURRENTLIMIT RESISTOR RD 1500 IP 100% 90% DISCHARGE RESISTANCE Ir PEAK-TO-PEAK RINGING (NOT DRAWN TO SCALE) AMPS HIGHVOLTAGE DC SOURCE Cs 100pF STORAGE CAPACITOR DEVICE UNDER TEST 36.8% 10% 0 0 Figure 7a. Human Body ESD Test Model RC 50M TO 100M CHARGE-CURRENTLIMIT RESISTOR HIGHVOLTAGE DC SOURCE Cs 150pF tDL CURRENT WAVEFORM Figure 7b. Human Body Current Waveform RD 330 I 100% 90% DISCHARGE RESISTANCE STORAGE CAPACITOR TIME tRL IPEAK MAX13181E-MAX13184E +5.0V, 15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in DFN DEVICE UNDER TEST 10% tr = 0.7ns TO 1ns t 30ns 60ns Figure 7c. IEC 61000-4-2 ESD Test Model Human Body Model Figure 7a shows the Human Body Model, and Figure 7b shows the current waveform it generates when discharged into a low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of interest, which is then discharged into the test device through a 1.5k resistor. Machine Model The IEC 61000-4-2 standard covers ESD testing and performance of finished equipment. However, it does not specifically refer to integrated circuits. The MAX13485E/MAX13486E help equipment designs to meet IEC 61000-4-2, without the need for additional ESD protection components. The major difference between tests done using the Human Body Model and IEC 61000-4-2 is higher peak current in IEC 61000-4-2 because series resistance is lower in the IEC 61000-4-2 model. Hence, the ESD withstand voltage measured to IEC 61000-4-2 is generally lower than that measured using the Human Body Model. Figure 7c shows the IEC 61000-4-2 model, and Figure 7d shows the current waveform for the IEC 61000-4-2 ESD Contact Discharge test. 12 Figure 7d. IEC 61000-4-2 ESD Generator Current Waveform Applications Information 256 Transceiver on the Bus The standard RS-485 receiver input impedance is 12k (one-unit load), and the standard driver can drive up to 32 unit loads. The MAX13181E-MAX13184E family transceivers have a 1/8-unit load receiver input impedance (96k), allowing up to 256 transceivers to be connected in parallel on one communication line. Any combination of these devices and/or other RS-485 transceivers with a total of 32 unit loads or less can be connected to the line. Reduced EMI and Reflections The MAX13181E/MAX13182E are slew-rate limited, minimizing EMI and reducing reflections caused by improperly terminated cables. This slew-rate limited feature allows error-free data transmission up to 250kbps. MAX13181E/MAX13183E Low-Power Shutdown Mode The MAX13181E/MAX13183E feature low power shutdown mode. Low-power shutdown mode is initiated by bringing RE high and DE low. In shutdown, the devices typically draw only 2.5A (typ) of supply current. RE and DE can be driven simultaneously. If RE is high and ______________________________________________________________________________________ +5.0V, 15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in DFN A Enable times tZH and tZL (see the Switching Characteristics) assume the devices are not in a low-power shutdown state. Enable times t ZH(SHDN) and t ZL(SHDN) assume the devices are in a shutdown state. It takes drivers and receivers longer to become enabled from lowpower shutdown mode (tZH(SHDN), tZL(SHDN)) than from driver-/receiver-disable mode (tZH, tZL). RO *RE R DE Z DI D DATA OUT Y 120 (H/F) Line Length The RS-485 standard covers line lengths up to 4000ft. For line lengths greater than 4000ft, use the repeater application shown in Figure 8. DATA IN B 120 *RE FOR MAX13182E/MAX13184E (H/F for MAX13181E/ MAX13183E ONLY) (FULL DUPLEX) Figure 8. Line Repeater for MAX13181E-MAX13184E Typical Applications The MAX13181E-MAX13184E transceivers are designed for bidirectional data communications on multipoint bus transmission lines. The MAX13181E/MAX13183E can be used in either half-duplex or full-duplex configuration. The MAX13182E/MAX13184E are for full-duplex only. Figure 9 shows the typical network application circuit for half-duplex, and Figures 10 and 11 show typical network application circuits for full duplex. To minimize reflections, terminate the line at both ends in its characteristics impedance, and keep stub lengths off the main line as short as possible. The slew-rate-limited MAX13181E/MAX13182E are more tolerant of imperfect termination. 120 120 DI DE B B D D DI DE VCC A RO B A B A A R R RO RE H/F R R D D MAX13181E-MAX13184E CONFIGURED FOR HALFDUPLEX OPERATION DI DE RO RE DI DE RO RE Figure 9. Typical Half-Duplex RS-485 Network ______________________________________________________________________________________ 13 MAX13181E-MAX13184E DE is low for 200ns (typ), the devices are guaranteed to enter shutdown. MAX13181E-MAX13184E +5.0V, 15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in DFN A R RO Y 120 120 D B DI Z DE Z DI 120 120 D DE RE RO B R Y H/F A Y MAX13181E/MAX13183E CONFIGURED FOR FULLDUPLEX OPERATION Z B A Y Z B R A R D D DI DI DE RE RO DE RE RO Figure 10. Typical Full-Duplex RS-485 Network A R RO Y 120 120 Z D B 120 120 R Y A Y MAX13182E/MAX13184E CONFIGURED FOR FULLDUPLEX OPERATION Z B A Y Z R D DI B A R D DE RE RO DI DE RE RO Figure 11. Typical Full-Duplex RS-485 Network 14 DI Z DE DI D B ______________________________________________________________________________________ DE RE RO +5.0V, 15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in DFN TEMP RANGE PIN-PACKAGE TOP MARK PKG CODE MAX13183EELB+ PART -40C to +85C 10 DFN ABA L1022-1 MAX13184EELB+ -40C to +85C 10 DFN ABB L1022-1 MAX13184EESD+ -40C to +85C 14 SO -- S14-1 +Denotes a lead-free package. Pin Configurations (continued) Chip Information PROCESS: BiCMOS TOP VIEW N.C. 1 + 14 VCC RO 2 RE 3 DE 4 13 N.C. MAX13182E MAX13184E 12 A 11 B DI 5 10 Z GND 6 9 Y GND 7 8 N.C. SO ______________________________________________________________________________________ 15 MAX13181E-MAX13184E Ordering Information (continued) Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) A D XXXX XXXX XXXX b e N SOLDER MASK COVERAGE E PIN 1 0.10x45 L PIN 1 INDEX AREA 6, 8, 10L UDFN.EPS MAX13181E-MAX13184E +5.0V, 15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in DFN L1 1 SAMPLE MARKING A A (N/2 -1) x e) 7 CL CL b L A A2 A1 L e EVEN TERMINAL e ODD TERMINAL PACKAGE OUTLINE, 6, 8, 10L uDFN, 2x2x0.80 mm -DRAWING NOT TO SCALE- 16 21-0164 ______________________________________________________________________________________ A 1 2 +5.0V, 15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in DFN COMMON DIMENSIONS SYMBOL MIN. NOM. A 0.70 0.75 0.80 A1 0.15 0.20 0.25 0.035 A2 0.020 0.025 D 1.95 2.00 E 1.95 2.00 L 0.30 0.40 L1 MAX. - 2.05 2.05 0.50 0.10 REF. PACKAGE VARIATIONS PKG. CODE N e b (N/2 -1) x e L622-1 6 0.65 BSC 0.300.05 1.30 REF. L822-1 8 0.50 BSC 0.250.05 1.50 REF. L1022-1 10 0.40 BSC 0.200.03 1.60 REF. PACKAGE OUTLINE, 6, 8, 10L uDFN, 2x2x0.80 mm -DRAWING NOT TO SCALE- 21-0164 A 2 2 ______________________________________________________________________________________ 17 MAX13181E-MAX13184E Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) DIM A A1 B C e E H L N E H INCHES MILLIMETERS MAX MIN 0.069 0.053 0.010 0.004 0.014 0.019 0.007 0.010 0.050 BSC 0.150 0.157 0.228 0.244 0.016 0.050 MAX MIN 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 1.27 BSC 3.80 4.00 5.80 6.20 0.40 SOICN .EPS MAX13181E-MAX13184E +5.0V, 15kV ESD-Protected, Half-Duplex/ Full-Duplex, RS-485 Transceiver in DFN 1.27 VARIATIONS: 1 INCHES TOP VIEW DIM D D D MIN 0.189 0.337 0.386 MAX 0.197 0.344 0.394 MILLIMETERS MIN 4.80 8.55 9.80 MAX 5.00 8.75 10.00 N MS012 8 AA 14 AB 16 AC D A B e C 0-8 A1 L FRONT VIEW SIDE VIEW PROPRIETARY INFORMATION TITLE: PACKAGE OUTLINE, .150" SOIC APPROVAL DOCUMENT CONTROL NO. 21-0041 REV. B 1 1 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 18 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 2007 Maxim Integrated Products SPRINGER is a registered trademark of Maxim Integrated Products, Inc. Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Maxim Integrated: MAX13181EELB+T MAX13182EELB+T MAX13182EESD+ MAX13182EESD+T MAX13183EELB+T MAX13184EELB+T MAX13184EESD+ MAX13184EESD+T