16kV ESD Protected, +125C, 3.0V to 5.5V, TDFN Packaged, Low Power RS-485/RS-422 Transmitter ISL3298EMRTEP Features The Intersil ISL3298EMRTEP is a 16.5kV HBM ESD Protected Specifications per DLA VID V62/10602 (7kV IEC61000 contact), 3.0V to 5.5V powered, single Full Mil-Temp Electrical Performance from -55C to +125C transmitter for balanced communication using the RS-485 and Controlled Baseline with One Wafer Fabrication Site and One RS-422 standards. This driver has very low bus currents (40mA), Assembly/Test Site so it presents less than a 1/8 unit load to the RS-485 bus. This Full Homogeneous Lot Processing in Wafer Fab allows more than 256 transmitters on the network without No Combination of Wafer Fabrication Lots in Assembly violating the RS-485 specifications 32 unit load maximum, and Full Traceability Through Assembly and Test by Date/Trace without using repeaters. Code Assignment Hot Plug circuitry ensures that the Tx outputs remain in a high Enhanced Process Change Notification impedance state while the power supply stabilizes. Enhanced Obsolescence Management The driver on the ISL3298EMRTEP is not limited, so it can achieve a Eliminates Need for Up-Screening a COTS Component 16Mbps data rate and is offered in the -55C to +125C High ESD Protection on RS-485 Outputs 16.5kV HBM temperature range. - IEC61000-4-2 Contact Test Method . 7kV This devices also feature a logic supply pin (V ) that sets the L - Class 3 ESD Level on all Other Pins .>8kV HBM switching points of the DE and DI inputs to be compatible with a Specified for +125C Operation (V 3.6V Only) lower supply voltage in mixed voltage systems. CC Logic Supply Pin (V ) Eases Operation in Mixed Supply Systems L For a companion single RS-485 receiver in micro packages, please see the ISL3282EMRTEP data sheet. Hot Plug - Tx Output Remains Three-state During Power-up Low Tx Leakage Allows >256 Devices on the Bus Applications High Data Rates . up to 16Mbps Clock Distribution Low Quiescent Supply Current .150A (Max) High Node Count Systems - Very Low Shutdown Supply Current 1A (Max) Space Constrained Systems -7V to +12V Common Mode Output Voltage Range (V 3.6V CC Security Camera Networks Only) Building Environmental Control/Lighting Systems Current Limiting and Thermal Shutdown for Driver Overload Industrial/Process Control Networks Protection (V 3.6V Only) CC Tri-statable Tx Output 5V Tolerant Logic Input When V 5V CC TABLE 1. SUMMARY OF FEATURES MAXIMUM PART DATA RATE SLEW-RATE HOT V TX QUIESCENT I LOW POWER PIN L CC NUMBER FUNCTION (Mbps) LIMITED PLUG PIN ENABLE (A) SHUTDOWN COUNT ISL3298EMRTEP 1 Tx 16 NO YES YES YES 150 YES 8-TDFN July 28, 2011 CAUTION: These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures. 1 1-888-INTERSIL or 1-888-468-3774 Copyright Intersil Americas Inc. 2010, 2011. All Rights Reserved FN7607.1 Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners.ISL3298EMRTEP Pin Configuration Truth Table ISL3298EMRTEP TRANSMITTING (8 LD TDFN) TOP VIEW INPUTS OUTPUTS DE DI Z Y V V L 1 8 CC 11 01 DE 2 7 Z D 10 10 DI Y 3 6 0X High-Z * High-Z * GND 4 5 GND NOTE: *Shutdown Mode Pin Descriptions PIN NUMBER PIN SYMBOL FUNCTION 1V Logic-Level supply which sets the V /V levels for the DI and DE pins. Power-up this supply after V , and keep V L IL IH CC L V CC. 2 DE Driver output enable. The driver outputs, Y and Z, are enabled by bringing DE high, and are high impedance when DE is low. If the driver enable function isnt needed, connect DE to V (or V ) through a 1k to 3k resistor. CC L 3 DI Driver input. A low on DI forces output Y low and output Z high. Similarly, a high on DI forces output Y high and output Z low. 4, 5 GND Ground connection. This is also the potential of the TDFN thermal pad. 6 Y 15kV HBM, 7kV IEC61000 (contact method) ESD Protected RS-485/422 level, noninverting transmitter output. 7 Z 15kV HBM, 7kV IEC61000 (contact method) ESD Protected RS-485/422 level, inverting transmitter output. 8V System power supply input (3.0V to 5.5V). On devices with a V pin, power-up V first. CC L CC Ordering Information PART NUMBER VENDOR ITEM PART TEMP. RANGE PACKAGE (Note) DRAWING MARKING (C) (Tape and Reel) ISL3298EMRTEP-T V62/10602-01XB 298 -55 to +125 8 Ld TDFN ISL3298EMRTEP-TK V62/10602-01XB 298 -55 to +125 8 Ld TDFN NOTE: Please refer to TB347 for details on reel specifications. FN7607.1 2 July 28, 2011