ISO7241MDW - 4-Ch 3/1 150Mbps Digital Isolator | TI
MPN: ISO7241MDW β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.74 | $274.00 |
| 500 | $2.47 | $1,235.00 |
| 1,000 | $2.19 | $2,190.00 |
Drop-in alternatives for ISO7241MDW β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ISO7241MDWR
β Drop-Inπ Reference alternative (not in catalog)
ISO7241CDW
β Drop-Inπ Reference alternative (not in catalog)
ISO7241M
β Drop-Inπ Reference alternative (not in catalog)
ISO7240MDW
β Drop-Inπ Reference alternative (not in catalog)
ADUM1401ARWZ
β Drop-Inβ In Stock
$2.19 / Unit
View Datasheet βADuM1401BRWZ
β Drop-Inπ Reference alternative (not in catalog)
ISO7241MDW Maximum Ratings & Electrical Characteristics
| Number of Channels | 4 (3 forward, 1 reverse) |
| Isolation Voltage | 2500 Vrms |
| Data Rate | 150 Mbps |
| Common-Mode Transient Immunity (CMTI) | 25 kV/Β΅s |
| Channel-to-Channel Output Skew | 1 ns max |
| Pulse-Width Distortion (PWD) | 2 ns max |
| Jitter Content | 1 ns typ at 150 Mbps |
| Supply Voltage (VCC1/VCC2) | 3.0 V to 5.5 V |
| Operating Temperature Range | -40Β°C to +125Β°C |
| Package | SOIC-16 (DW) 7.50 mm width |
| Mounting Type | Surface Mount |
| Isolation Barrier | Silicon Dioxide (SiO2) |
| Output Enable | Yes |
| RoHS Status | Compliant |
| Lead-Free | Yes |
ISO7241MDW Pin Configuration
| Pin 1 | VCC1 β Input side supply voltage (3.0V to 5.5V) |
| Pin 2 | GND1 β Input side ground |
| Pin 3 | INA β Input channel A (forward) |
| Pin 4 | INB β Input channel B (forward) |
| Pin 5 | INC β Input channel C (forward) |
| Pin 6 | OUTD β Output channel D (reverse) |
| Pin 7 | EN β Output enable (active high) |
| Pin 8 | GND1 β Input side ground |
| Pin 9 | GND2 β Output side ground |
| Pin 10 | OUTA β Output channel A (forward) |
| Pin 11 | OUTB β Output channel B (forward) |
| Pin 12 | OUTC β Output channel C (forward) |
| Pin 13 | IND β Input channel D (reverse) |
| Pin 14 | NC β No connect |
| Pin 15 | GND2 β Output side ground |
| Pin 16 | VCC2 β Output side supply voltage (3.0V to 5.5V) |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
ISO7241MDW is suitable for 6 applications: Industrial Fieldbus Communication, Motor Control and Inverter Drives, Isolated SPI/UART Interfaces, Power Supply and Battery Management, Medical Equipment Isolation, Automotive Electronics.
Industrial Fieldbus Communication
The ISO7241MDW is ideal for industrial fieldbus communication such as PROFIBUS, Modbus, and CAN isolation. Its 150 Mbps data rate and 25 kV/Β΅s CMTI ensure reliable data transfer in noisy factory environments. The 3/1 channel configuration supports bidirectional communication with one reverse channel for acknowledgments. The device's 2500 Vrms isolation protects control electronics from ground loops and voltage transients, enhancing system safety and reliability.
Recommended
Motor Control and Inverter Drives
In motor control and inverter drives, the ISO7241MDW provides isolation between the microcontroller and gate driver circuits. Its high CMTI (25 kV/Β΅s) prevents false triggering due to fast switching transients from IGBTs or MOSFETs. The 150 Mbps data rate supports high-frequency PWM signals, while the 3/1 channel configuration allows for three forward control signals and one reverse feedback signal. The wide temperature range (-40Β°C to +125Β°C) suits harsh industrial environments.
Recommended
Isolated SPI/UART Interfaces
The ISO7241MDW is well-suited for isolating SPI or UART interfaces between microcontrollers and peripheral devices. Its 150 Mbps data rate easily handles SPI clock speeds up to 50 MHz, and the 3/1 channel configuration matches typical SPI (MOSI, SCLK, CS forward; MISO reverse) or UART (TX forward, RX reverse) signal directions. The low pulse-width distortion (2 ns max) ensures accurate data transmission, and the output enable function allows bus sharing in multi-drop configurations.
Recommended
Power Supply and Battery Management
In power supply and battery management systems, the ISO7241MDW isolates the control circuitry from high-voltage power stages. It can be used to transmit PWM signals for DC-DC converters or to isolate communication between battery monitoring ICs and the main controller. The 2500 Vrms isolation rating provides protection against voltage spikes, and the high CMTI ensures stable operation in the presence of switching noise. The device's low power consumption is beneficial for battery-powered applications.
Recommended
Medical Equipment Isolation
The ISO7241MDW is suitable for medical equipment requiring galvanic isolation for patient safety. Its 2500 Vrms isolation rating meets basic insulation requirements for many medical standards. The device's low jitter and high data rate ensure accurate signal transmission in diagnostic and monitoring equipment. The wide temperature range and high reliability make it suitable for long-term use in medical devices. The SiO2 isolation barrier provides stable performance over time.
Recommended
Automotive Electronics
The ISO7241MDW is designed for automotive applications such as electric vehicle battery management, motor control, and in-vehicle networking. Its -40Β°C to +125Β°C temperature range meets automotive requirements, and the 2500 Vrms isolation provides protection against high-voltage transients. The high CMTI (25 kV/Β΅s) ensures reliable operation in the presence of electromagnetic interference from motors and ignition systems. The device is AEC-Q100 qualified, making it suitable for automotive-grade designs.
Recommended
Recommended Products Summary
Engineering reference data for ISO7241MDW β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ISO7241MDWR | ISO7241CDW | ADuM1401ARWZ |
|---|---|---|---|---|
| Package | SOIC-16 (DW) | SOIC-16 (DW) | SOIC-16 (DW) | SOIC-16 (DW) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices |
| Number of Channels | 4 (3/1) | 4 (3/1) | 4 (3/1) | 4 (3/1) |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms |
| Data Rate | 150 Mbps | 150 Mbps | 150 Mbps | 90 Mbps |
| CMTI | 25 kV/Β΅s | 25 kV/Β΅s | 25 kV/Β΅s | 25 kV/Β΅s |
| Failsafe Output State | Low | Low | High | Low |
| Operating Temperature | -40Β°C to +125Β°C | -40Β°C to +125Β°C | -40Β°C to +125Β°C | -40Β°C to +125Β°C |
Key Differentiators
- Higher data rate than many competitors (vs ADuM1401ARWZ)
- Low pulse-width distortion (vs ADuM1401ARWZ)
- Same-brand drop-in variants (vs ISO7241CDW)
Design Notes
For optimal isolation performance, maintain a minimum creepage distance of 8 mm between the input and output sides on the PCB. Place the isolation barrier under the device and avoid routing copper traces across the barrier. Use a solid ground plane on each side, but do not connect the grounds together except through the isolation barrier. This ensures the 2500 Vrms isolation rating is maintained.
Decouple both VCC1 and VCC2 with 0.1 Β΅F ceramic capacitors placed as close to the pins as possible. Additionally, use a 10 Β΅F bulk capacitor on each supply if the power source is far from the device. This helps maintain stable operation and reduces noise coupling. The device draws minimal quiescent current, but transient currents during switching can cause voltage dips if decoupling is inadequate.
For high-speed signals up to 150 Mbps, keep the trace lengths short and matched between channels to minimize skew. Use controlled impedance traces (e.g., 50 ohms) if the traces are longer than 1 inch. Avoid vias on the signal lines if possible, as they add parasitic capacitance and inductance. The low output skew (1 ns max) of the ISO7241MDW helps maintain timing margins, but PCB layout still plays a critical role.
Compliance Information
RoHS compliant per TI product page. AEC-Q100 qualification not specified for this part; check TI for automotive-grade variants.
