ISOW7844DWER

ISOW7844DWER is a Texas Instruments isolated 4-channel gate-driver device. It provides galvanic isolation between a low-voltage logic/control side and a high-voltage power side, allowing safe driving of multiple MOSFETs/IGBTs in isolated power stages (e.g., DC-DC converters, motor drives, inverters).
Key points:
- 4 independent gate-drive channels with push-pull outputs
- Separate isolated power supply on the power side
- Logic-side input compatible with 3.3V/5V signals
- Protection features such as undervoltage lockout and fault reporting
- Fast switching with suitable propagation delays for high-speed applications
- Package variant DWER (TI packaging/reel options)
Applications include multi-channel isolated gate driving in high-voltage systems where isolation, compactness, and reliable gate control are required. For exact electrical specs (isolation rating, drive current, UVLO thresholds, propagation delays, and pinout), consult the ISOW7844DWER datasheet. If you’d like, I can provide a concise spec summary or a link to the datasheet.

ISOW7844DWER is TI’s quad-channel isolated digital transceiver. Key features:
- Four isolated data channels across a galvanic barrier
- 5 kV RMS isolation between primary and secondary sides
- Independent supply rails on each side (VCCA/VCCB) for flexible logic levels (3.3V/5V domains)
- SPI/I2C/UART‑friendly control interface; suitable for microcontroller to isolated peripheral links
- High-speed data transfer with low propagation delay; configurable slew rate
- Integrated protection: undervoltage lockout, overcurrent/short-circuit protection, ESD protection
- Industrial temperature range (-40°C to +125°C)
- Small package (DWER variant, typical compact 16‑pin form factor)
Note: exact data rate, leakage, and timing specs vary by variant; please consult the datasheet for precise values.

Package type: WSON-16 (16-pin, lead-free).

Pin count: 16 pins (16‑pin package, e.g., SOIC-16).
Function: Quad‑channel digital isolator for SPI (ISOW7844). Provides galvanic isolation between two sides of an SPI bus, translating four SPI lines (MOSI, MISO, SCLK, CS) across an isolation barrier with separate supply rails on each side (VCCA and VCCB).

- Manufacturer: Texas Instruments (TI)
- Company type: American multinational semiconductor company that designs and manufactures analog and embedded processing integrated circuits.

Equivalent parts for ISOW7844DWER (4‑channel SPI digital isolator) include:
- TI ISO7840/41/42/44 family (SPI isolators)
- Analog Devices ADuM7440/7441/7442/7444 (quad-channel digital isolators)
- Silicon Labs Si86xx series (4‑channel digital isolators with SPI support)
- Broadcom/Avago HCPL-7840/7841/7842 (4‑channel digital opto‑isolators)