MAX3186 19-1077 Rev 0 9/96 15kV ESD-Protected, EMC-Compliant, 230kbps RS-232 Serial Port for Modems General Description Features The MAX3186 is a complete DCE RS-232 serial port Enhanced ESD Protection: designed to meet the stringent ESD requirements of the 15kVHuman Body Model European community. All transmitter outputs and receiv- er inputs are protected to 15kV using IEC 1000-4-2 8kVIEC1000-4-2, Contact Discharge Air-Gap Discharge, 8kV using IEC 1000-4-2 Contact 15kVIEC1000-4-2, Air-Gap Discharge Discharge, and 15kV using the Human Body Model. Latchup Free During an ESD Event The MAX3186 has five RS-232 transmitters, three RS- 232 receivers, and no charge pump, optimizing it for 20-Pin SSOP or SO Packages operation in modem applications. It is guaranteed to run at data rates up to 230kbps, providing compatibility Guaranteed 230kbps Data Rate with popular software for communicating with personal Flow-Through Pinout computers. Power-supply current is less than 300A for I and I , and less than 1mA for I . DD SS CC Complete DCE Serial Port The MAX3186 is available in an SO package and in the tiny SSOP that further reduces board space. Applications Ordering Information Modems PART TEMP. RANGE PIN-PACKAGE ISDN Modems MAX3186CWP 0C to +70C 20 SO MAX3186CAP 0C to +70C 20 SSOP Instruments MAX3186EWP -40C to +85C 20 SO Equipment Meeting IEC1000-4-2 MAX3186EAP -40C to +85C 20 SSOP Typical Operating Circuit Pin Configuration TOP VIEW MAX3186 MAX3185 V 1 20 V DD CC T1 R1 T1OUT 2 19 T1IN T2 R2 R1IN 3 R1OUT 18 RS-232 T2OUT 4 T2IN 17 TTL/CMOS TTL/CMOS T3 R3 LOGIC LOGIC R2IN R2OUT 5 16 INTERCONNECTING I/O I/O T4 R4 R3IN 6 15 R3OUT CABLE T3OUT 7 14 T3IN T5 R5 T4OUT 8 13 T4IN R1 T1 T5IN T5OUT 9 12 V 10 11 GND SS R2 T2 MAX3186 R3 T3 SO/SSOP Maxim Integrated Products 1 For free samples & the latest literature: 15kV ESD-Protected, EMC-Compliant, 230kbps RS-232 Serial Port for Modems ABSOLUTE MAXIMUM RATINGS V ...........................................................................-0.3V to +7V Continuous Power Dissipation (T = +70C) CC A V .........................................................................-0.3V to +14V Wide SO (derate 10.00mW/C above +70C)...............800mW DD V ..........................................................................+0.3V to -14V SSOP (derate 8.00mW/C above +70C) .....................640mW SS Input Voltages Operating Temperature Ranges T .........................................................................-0.3V to +6V MAX3186C P.......................................................0C to +70C IN R ....................................................................................30V MAX3186E P ....................................................-40C to +85C IN Output Voltages Storage Temperature Range ............................-65C to +160C T ..................................................................................15V Lead Temperature (soldering, 10sec) ............................+300C OUT R ........................................................-0.3V to (V + 0.3V) OUT CC Short-Circuit Duration T (one at a time)................................................Continuous OUT R (one at a time) ...............................................Continuous OUT 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. ELECTRICAL CHARACTERISTICS (V = +4.5V to +5.5V, V = +10.8V to +13.2V, V = -10.8V to -13.2V, T = T to T , unless otherwise noted. Typical values CC DD SS A MIN MAX are at T = +25C.) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC CHARACTERISTICS V 4.5 5.5 CC Operating Voltage Range V 10.8 13.2 V DD V -13.2 -10.8 SS I No load 230 1000 CC Supply Current IDD No load 280 750 A I No load 280 750 SS LOGIC Input Logic Threshold Low V T 0.8 V ILT IN Input Logic Threshold High V T 2.0 V IHT IN Input Leakage Current 0.01 1 A Output Voltage Low V R I = 3.2mA 0.4 V OLR OUT SINK Output Voltage High VOHR ROUT ISOURCE = 1mA VCC - 0.6 V TRANSMITTER OUTPUTS V = 7.0V, V = -7.0V, R = 3k 5.0 DD SS L Output Voltage Swing V V = 12V, V = -12V, R = 3k 9.5 DD SS L Transmitter Output Resistance V = V = V = 0V, V = 2V 300 CC DD SS T OUT RS-232 Output Short-Circuit 35 60 mA Current RECEIVER INPUTS Receiver Input Voltage -25 25 V Operating Range RS-232 Input Threshold Low 0.75 V RS-232 Input Threshold High 2.4 V RS-232 Input Hysteresis 0.65 V RS-232 Input Resistance 35 7 k Receiver Output Short-Circuit 10 mA Current 2 MAX3186