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ISOW7844DWER
+BOMDGTL ISOLTR 5KV 4CH GP 16-SOIC
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メーカーSTマイクロエレクトロニクス
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メーカー品番 #ISOW7844DWER
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在庫状況14345
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| PartStatus | Active |
| BaseProductNumber | ISOW7844 |
| Technology | Capacitive Coupling |
| Type | General Purpose |
| IsolatedPower | Yes |
| NumberofChannels | 4 |
| Inputs-Side1/Side2 | 0/4 |
| ChannelType | Unidirectional |
| Voltage-Isolation | 5000Vrms |
| CommonModeTransientImmunity(Min) | 100kV/µs |
| DataRate | 100Mbps |
| PropagationDelaytpLH/tpHL(Max) | 17.6ns, 17.6ns |
| PulseWidthDistortion(Max) | 4.7ns |
| Rise/FallTime(Typ) | 2ns, 2ns |
| Voltage-Supply | 3V ~ 5.5V |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package | 16-SOIC (0.295", 7.50mm Width) |
| SupplierDevicePackage | 16-SOIC |
| Packaging | Cut Tape (CT), Tape & Reel (TR) |
概要
Description
ISOW7844DWER is Texas Instruments’ isolated quad RS-485/RS-422 transceiver. It provides four independent differential transceiver channels with galvanic isolation between the logic side (microcontroller) and the bus side, enabling safe, long-distance, multi-point industrial communications.
Key points:
- Four RS-485/RS-422 transceivers in one device
- Galvanic isolation between sides for each channel
- Independent DI/DE/RE control per channel; enables flexible bus topologies
- Features such as failsafe receivers and protection against common-mode transients
- Suitable for industrial automation, motor control, remote sensing, and distributed control systems
- Packaging: DWER (tape-and-reel option)
For exact isolation voltage, data rates, supply rails, timing, and pinout, refer to the ISOW7844 datasheet.
Key points:
- Four RS-485/RS-422 transceivers in one device
- Galvanic isolation between sides for each channel
- Independent DI/DE/RE control per channel; enables flexible bus topologies
- Features such as failsafe receivers and protection against common-mode transients
- Suitable for industrial automation, motor control, remote sensing, and distributed control systems
- Packaging: DWER (tape-and-reel option)
For exact isolation voltage, data rates, supply rails, timing, and pinout, refer to the ISOW7844 datasheet.
Equivalent
Equivalent devices (4-channel isoSPI digital isolators from other vendors):
- TI ISO7840/ISO7842 family
- Analog Devices ADuM1250/ADuM1251
- Broadcom/Avago HCPL-7840/7841/7842
- Renesas ISOW7841/7843 (same isoSPI family)
Note: verify pinout, voltage, isolation rating, and data-rate to ensure compatibility with your design.
- TI ISO7840/ISO7842 family
- Analog Devices ADuM1250/ADuM1251
- Broadcom/Avago HCPL-7840/7841/7842
- Renesas ISOW7841/7843 (same isoSPI family)
Note: verify pinout, voltage, isolation rating, and data-rate to ensure compatibility with your design.
Features
ISOW7844DWER features (concise):
- Isolated quad-channel digital isolator (isoSPI/SPI compatible) with four independent data channels
- Galvanic isolation between primary side (VDD1) and secondary side (VDD2)
- Isolation rating: typically around 2.5 kV RMS (basic insulation)
- Separate supply rails for each side: VDD1 and VDD2, supports 3.3 V or 5 V logic on each side
- High-speed data: up to tens of Mbps per channel (typical up to ~25 Mbps)
- Low propagation delay and good channel-to-channel skew; high common-mode transient immunity
- Wide operating temperature range (Industrial: -40°C to +125°C)
- ESD and protection features; input overvoltage tolerance
- Small package (DWE suffix indicates RoHS-compliant, tape-and-reel packaging; commonly SOIC-16)
- Applications: isolated SPI interfaces for MCUs, sensors, DAC/ADC, motor drives, and industrial automation
Note: Please refer to the exact datasheet for precise voltage, speed, and package details.
- Isolated quad-channel digital isolator (isoSPI/SPI compatible) with four independent data channels
- Galvanic isolation between primary side (VDD1) and secondary side (VDD2)
- Isolation rating: typically around 2.5 kV RMS (basic insulation)
- Separate supply rails for each side: VDD1 and VDD2, supports 3.3 V or 5 V logic on each side
- High-speed data: up to tens of Mbps per channel (typical up to ~25 Mbps)
- Low propagation delay and good channel-to-channel skew; high common-mode transient immunity
- Wide operating temperature range (Industrial: -40°C to +125°C)
- ESD and protection features; input overvoltage tolerance
- Small package (DWE suffix indicates RoHS-compliant, tape-and-reel packaging; commonly SOIC-16)
- Applications: isolated SPI interfaces for MCUs, sensors, DAC/ADC, motor drives, and industrial automation
Note: Please refer to the exact datasheet for precise voltage, speed, and package details.
Pinout
- Pin count: 16 pins (16‑pin package)
- Function: Quad-channel digital isolator with integrated isoPower. Provides four bidirectional data channels across a galvanic isolation barrier, with separate supplies on each side (VCCA/VGNA and VCCB/VGNB) for isolating a microcontroller or logic from a high-voltage/noisy domain (SPI/I2C/UART interfaces possible).
- Function: Quad-channel digital isolator with integrated isoPower. Provides four bidirectional data channels across a galvanic isolation barrier, with separate supplies on each side (VCCA/VGNA and VCCB/VGNB) for isolating a microcontroller or logic from a high-voltage/noisy domain (SPI/I2C/UART interfaces possible).
Manufacturer
The ISOW7844DWER is manufactured by Texas Instruments (TI). TI is an American multinational semiconductor company that designs and manufactures analog and embedded processing chips and provides semiconductor-based solutions for automotive, industrial, personal electronics, and communications markets. It is one of the world's largest semiconductor manufacturers.
Application
ISOW7844DWER is used in systems needing galvanic isolation between high-voltage/noise domains and low-voltage logic. Typical applications include:
- Industrial automation and PLC I/O isolation
- Motor control and robotics
- Automotive/EV power electronics
- Medical instrumentation with patient isolation
- Power supplies, inverters, and smart grid equipment
- Data acquisition, instrumentation, and harsh-environment sensor interfaces
- Industrial automation and PLC I/O isolation
- Motor control and robotics
- Automotive/EV power electronics
- Medical instrumentation with patient isolation
- Power supplies, inverters, and smart grid equipment
- Data acquisition, instrumentation, and harsh-environment sensor interfaces
Package
ISOW7844DWER uses a 16‑pin small‑outline package (SOIC‑16), RoHS compliant, supplied in Tape & Reel.
