MXL1535EEWI

MXL1535EEWI Datasheet

MAX3535E/MXL1535E

Part	Datasheet
MXL1535EEWI	MXL1535EEWI (pdf)

Related Parts	Information
MXL1535ECWI	MXL1535ECWI

PDF Datasheet Preview
EVALUATION KIT AVAILABLE AVAILABLE MAX3535E/MXL1535E +3V to +5V, 2500VRMS Isolated RS-485/RS-422 Transceivers with ±15kV ESD Protection The MAX3535E/MXL1535E isolated RS-485/RS-422 fullduplex transceivers provide 2500VRMS of galvanic isolation between the RS-485/RS-422 side and the processor or control logic side. These devices allow fast, 1000kbps communication across an isolation barrier when the common-mode voltages i.e., the ground potentials on either side of the barrier are subject to large differences. Isolation is achieved through integrated high-voltage capacitors. The MAX3535E/MXL1535E also feature a 420kHz transformer driver that allows power transfer to the RS-485 side using an external transformer. The MAX3535E/MXL1535E include one differential driver, one receiver, and internal circuitry to send the RS-485 signals and control signals across the isolation barrier including the isolation capacitors . The MAX3535E/ MXL1535E RS-485 receivers are 1/8 unit load, allowing up to 256 devices on the same bus. The MAX3535E/MXL1535E feature true fail-safe circuitry. The driver outputs and the receiver inputs are protected from ±15kV electrostatic discharge ESD on the interface side, as specified in the Human Body Model HBM . The MAX3535E/MXL1535E feature driver slew-rate select that minimizes electromagnetic interference EMI and reduces reflections. The driver outputs are short-circuit and overvoltage protected. Other features are hotswap capability and isolation-barrier fault detection. The MAX3535E operates with a single +3V to +5.5V power supply. The the MAX3535E allows the use of step-down transformers for +5V operation, resulting in considerable power savings. The MXL1535E operates with a single +4.5V to +5.5V power supply. The MXL1535E is a function-/pincompatible improvement of the LTC1535. The MAX3535E/MXL1535E are available over the commercial 0°C to +70°C and extended -40°C to +85°C temperature ranges. Isolated RS-485 Systems Systems with Large Common-Mode Voltages Industrial-Control Local Area Networks Telecommunications Systems Typical Application Circuit appears at end of data sheet. Pin Configurations appear at end of data sheet. Functional Diagrams continued at end of data sheet. UCSP is a trademark of Maxim Integrated Products, Inc. 2500VRMS RS-485 Bus Isolation Using On-Chip High-Voltage Capacitors 1000kbps Full-Duplex RS-485/RS-422 Communication +3V to +5.5V Power-Supply Voltage Range MAX3535E +4.5V to +5.5V Power-Supply Voltage Range MXL1535E 1/8 Unit Receiver Load, Allowing 256 Devices on Bus ±15kV ESD Protection Using HBM Pin-Selectable Slew-Rate Limiting Controls EMI Hot-Swap-Protected Driver-Enable Input Undervoltage Lockout Isolation-Barrier Fault Detection Short-Circuit Protected Thermal Shutdown Open-Line and Shorted-Line Fail-Safe Receiver Inputs OOrrddeerriinngg IInnffoorrmmaattiioonn PART TEMP RANGE PINPACKAGE MAX3535ECWI 0°C to +70°C MAX3535EEWI -40°C to +85°C MXL1535ECWI 0°C to +70°C MXL1535EEWI -40°C to +85°C 28 Wide SO 28 Wide SO 28 Wide SO 28 Wide SO POWERSUPPLY RANGE TOP VIEW Pin Configuration VCC1 1 ST1 2 ST2 3 GND1 4 28 RO1 27 RE 26 DE 25 DI MAX3535E MXL1535E For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at MAX3535E/MXL1535E +3V to +5V, 2500VRMS Isolated RS-485/RS-422 Transceivers with ±15kV ESD Protection ABSOLUTE MAXIMUM RATINGS Logic Voltages Referenced to GND1. VCC1 to +6V RE, DE, to +6V RO1, ST1, ST2 to VCC1 + 0.3V Isolated Voltages Referenced to GND2. VCC2 to +8V to VCC2 + 0.3V A, B RO2 .....................-0.3V to the lower of VCC2 + 0.3V and +3.4V Y, Z to +13V Digital Outputs Maximum Current RO1, RO2 Y, Z Maximum Current Protected ST1, ST2 Maximum Continuous Power Dissipation TA = +70°C 28-Pin Wide SO derate 9.5mW/°C above +70°C .................................750mW Operating Temperature Range MXL1535ECWI, MAX3535ECWI .........................0°C to +70°C MXL1535EEWI, MAX3535EEWI .......................-40°C to +85°C Junction Temperature Storage Temperature Range .............................-65°C to +150°C Lead Temperature soldering, 10s .................................+300°C 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 TABLE MAX3535E VCC1 = +3.0V to +5.5V, VCC2 = +3.13V to +7.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC1 = +3.3V, VCC2 = +5V, TA = +25°C. PARAMETER LOGIC-SIDE SUPPLY VCC1, GND1 Logic-Side Supply Voltage VCC1 Logic-Side Supply Current ICC1 CONDITIONS Transformer not driven, ST1 and ST2 unconnected, RE = low, DE = high, fDATA = 0, RO1 = no load MIN TYP MAX UNITS VCC1 Undervoltage-Lockout Falling Trip VUVL1 VCC1 Undervoltage-Lockout Rising Trip LOGIC INPUTS DI, DE, RE Input High Voltage, DE, DI, RE Input Low Voltage, DE, DI, RE Logic-Side Input Current, DE, DI LOGIC OUTPUTS RO1, RE Receiver-Output High Voltage RO1 Receiver-Output Low Voltage RO1 Receiver-Output RO1 Leakage Current RE Low Output Current for Fault Detect VUVH1 VIH is measured with respect to GND1 VIL is measured with respect to GND1 IINC VRO1H VRO1L IOZR ISOURCE = 4mA, VCC1 = +4.5V ISOURCE = 4mA, VCC1 = +3V ISINK = 4mA, VCC1 = +4.5V ISINK = 4mA, VCC1 = +3V RE = high, VCC1 = +5.5V, 0 VRO1 VCC1 RE = +0.4V, fault not asserted Maxim Integrated MAX3535E/MXL1535E +3V to +5V, 2500VRMS Isolated RS-485/RS-422 Transceivers with ±15kV ESD Protection DC ELECTRICAL CHARACTERISTICS TABLE MAX3535E continued VCC1 = +3.0V to +5.5V, VCC2 = +3.13V to +7.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC1 = +3.3V, VCC2 = +5V, TA = +25°C. PARAMETER CONDITIONS

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EVALUATION KIT AVAILABLE

AVAILABLE

MAX3535E/MXL1535E
+3V to +5V, 2500VRMS Isolated RS-485/RS-422 Transceivers with ±15kV ESD Protection

The MAX3535E/MXL1535E isolated RS-485/RS-422 fullduplex transceivers provide 2500VRMS of galvanic isolation between the RS-485/RS-422 side and the processor or control logic side. These devices allow fast, 1000kbps communication across an isolation barrier when the common-mode voltages i.e., the ground potentials on either side of the barrier are subject to large differences. Isolation is achieved through integrated high-voltage capacitors. The MAX3535E/MXL1535E also feature a 420kHz transformer driver that allows power transfer to the RS-485 side using an external transformer.

The MAX3535E/MXL1535E include one differential driver, one receiver, and internal circuitry to send the RS-485 signals and control signals across the isolation barrier including the isolation capacitors . The MAX3535E/ MXL1535E RS-485 receivers are 1/8 unit load, allowing up to 256 devices on the same bus.

The MAX3535E/MXL1535E feature true fail-safe circuitry. The driver outputs and the receiver inputs are protected from ±15kV electrostatic discharge ESD on the interface side, as specified in the Human Body Model HBM .

The MAX3535E/MXL1535E feature driver slew-rate select that minimizes electromagnetic interference EMI and reduces reflections. The driver outputs are short-circuit and overvoltage protected. Other features are hotswap capability and isolation-barrier fault detection.

The MAX3535E operates with a single +3V to +5.5V
power supply. The
the MAX3535E allows the use of step-down transformers for +5V operation, resulting in considerable power savings. The MXL1535E operates with a single +4.5V to +5.5V power supply. The MXL1535E is a function-/pincompatible improvement of the LTC1535. The MAX3535E/MXL1535E are available over the commercial 0°C to +70°C and extended -40°C to +85°C temperature ranges.

Isolated RS-485 Systems

Systems with Large Common-Mode Voltages

Industrial-Control Local Area Networks

Telecommunications Systems

Typical Application Circuit appears at end of data sheet. Pin Configurations appear at end of data sheet. Functional Diagrams continued at end of data sheet. UCSP is a trademark of Maxim Integrated Products, Inc.
2500VRMS RS-485 Bus Isolation Using On-Chip High-Voltage Capacitors
1000kbps Full-Duplex RS-485/RS-422 Communication
+3V to +5.5V Power-Supply Voltage Range MAX3535E
+4.5V to +5.5V Power-Supply Voltage Range MXL1535E
1/8 Unit Receiver Load, Allowing 256 Devices on Bus
±15kV ESD Protection Using HBM

Pin-Selectable Slew-Rate Limiting Controls EMI

Hot-Swap-Protected Driver-Enable Input

Undervoltage Lockout

Isolation-Barrier Fault Detection

Short-Circuit Protected

Thermal Shutdown

Open-Line and Shorted-Line Fail-Safe Receiver Inputs

OOrrddeerriinngg IInnffoorrmmaattiioonn

PART

TEMP RANGE

PINPACKAGE

MAX3535ECWI 0°C to +70°C MAX3535EEWI -40°C to +85°C MXL1535ECWI 0°C to +70°C MXL1535EEWI -40°C to +85°C
28 Wide SO 28 Wide SO 28 Wide SO 28 Wide SO

POWERSUPPLY RANGE

TOP VIEW

Pin Configuration

VCC1 1 ST1 2 ST2 3 GND1 4
28 RO1 27 RE 26 DE 25 DI

MAX3535E MXL1535E
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at

MAX3535E/MXL1535E
+3V to +5V, 2500VRMS Isolated RS-485/RS-422 Transceivers with ±15kV ESD Protection

ABSOLUTE MAXIMUM RATINGS

Logic Voltages Referenced to GND1. VCC1 to +6V RE, DE, to +6V RO1, ST1, ST2 to VCC1 + 0.3V Isolated Voltages Referenced to GND2. VCC2 to +8V to VCC2 + 0.3V A, B RO2 .....................-0.3V to the lower of VCC2 + 0.3V and +3.4V Y, Z to +13V Digital Outputs Maximum Current

RO1, RO2

Y, Z Maximum Current Protected ST1, ST2 Maximum Continuous Power Dissipation TA = +70°C
28-Pin Wide SO derate 9.5mW/°C above +70°C .................................750mW Operating Temperature Range MXL1535ECWI, MAX3535ECWI .........................0°C to +70°C MXL1535EEWI, MAX3535EEWI .......................-40°C to +85°C Junction Temperature Storage Temperature Range .............................-65°C to +150°C Lead Temperature soldering, 10s .................................+300°C

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 TABLE MAX3535E

VCC1 = +3.0V to +5.5V, VCC2 = +3.13V to +7.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC1 = +3.3V, VCC2 = +5V, TA = +25°C.

PARAMETER

LOGIC-SIDE SUPPLY VCC1, GND1

Logic-Side Supply Voltage

VCC1

Logic-Side Supply Current

ICC1

CONDITIONS

Transformer not driven, ST1 and ST2 unconnected, RE = low, DE = high, fDATA = 0, RO1 = no load

MIN TYP MAX UNITS

VCC1 Undervoltage-Lockout Falling Trip

VUVL1

VCC1 Undervoltage-Lockout Rising Trip LOGIC INPUTS DI, DE, RE Input High Voltage, DE, DI, RE Input Low Voltage, DE, DI, RE Logic-Side Input Current, DE, DI LOGIC OUTPUTS RO1, RE

Receiver-Output High Voltage RO1

Receiver-Output Low Voltage RO1

Receiver-Output RO1 Leakage Current

RE Low Output Current for Fault Detect

VUVH1

VIH is measured with respect to GND1

VIL is measured with respect to GND1

IINC

VRO1H VRO1L IOZR

ISOURCE = 4mA, VCC1 = +4.5V ISOURCE = 4mA, VCC1 = +3V ISINK = 4mA, VCC1 = +4.5V ISINK = 4mA, VCC1 = +3V RE = high, VCC1 = +5.5V, 0 VRO1 VCC1

RE = +0.4V, fault not asserted

Maxim Integrated

MAX3535E/MXL1535E
+3V to +5V, 2500VRMS Isolated RS-485/RS-422 Transceivers with ±15kV ESD Protection

DC ELECTRICAL CHARACTERISTICS TABLE MAX3535E continued

VCC1 = +3.0V to +5.5V, VCC2 = +3.13V to +7.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC1 = +3.3V, VCC2 = +5V, TA = +25°C.

PARAMETER

CONDITIONS

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Datasheet ID: MXL1535EEWI 647302