ISL32613E
±16.5kV ESD Protected, +125°C, 1.8V to 3.6V, Low Power, SOT-23, RS-485/RS-422 Transmitters
Key Features
- Wide Supply Voltage Range: 1.8V to 3.6V
- Low Quiescent Supply Current: 80µA (Max)
- Very Low Shutdown Supply Current: 2µA (Max)
- High ESD Protection on RS-485 Outputs: ±16.5kV HBM
- Class 3 ESD Level on All Other Pins: >8kV HBM
- Specified for +125°C or Full Military Temperature Range
- Hot Plug - Tx Outputs Remain Three-state During Power-up
- Low Tx Leakage Allows >256 Devices on the Bus
- Slew Rate Limited for Data Rates Up to 256kbps
- Current Limiting and Thermal Shutdown for Driver Overload Protection
- 5V Tolerant Logic Inputs
- Pb-Free (RoHS Compliant)
Description
The Intersil ISL32613E and ISL32614E are ±16.5kV HBM ESD Protected (7kV IEC61000 contact), 1.8V powered, single transmitters for differential communication. These drivers have very low bus currents (±40µA), so they present less than a “1/8 unit load” to the bus. This allows more than 256 transmitters on the network, without violating the RS-485 specification’s 32 unit load maximum and without using repeaters.
Hot Plug circuitry ensures that the Tx outputs remain in a high impedance state while the power supply stabilizes.
Both ICs utilize slew rate limited drivers, which reduce EMI and minimize reflections from improperly terminated transmission lines or unterminated stubs in multidrop and multipoint applications. The ISL32613E is more slew rate limited for data rates up to 128kbps, while the less limited ISL32614E is useful for data rates up to 256kbps.
For companion low power single RS-485 receivers, please see the ISL32610E data sheet.
Applications
- Industrial/Process Control Networks
- Space-constrained Systems
- Factory Automation
- Building Environmental Control/Lighting Systems
