Product overview
Description
The STDRIVE181 is an integrated octal half-bridge gate driver designed to control up to sixteen N-channel MOSFETs. This device, together with the quad half-bridge STDRIVE141 and the dual half-bridge STDRIVE121, extends the STDRIVE family.
A 24-bit serial peripheral interface (SPI) is used for configuring and controlling the half-bridges. SPI status registers provide high-level diagnostic information such as supply voltage monitoring, charge pump voltage monitoring, temperature warning, and overtemperature shutdown.
Each gate driver independently monitors its external MOSFET drain-source voltage for fault conditions.
A more efficient gate current control of the external MOSFETs, called “three stages gate current,” reduces switching losses and optimizes electromagnetic interference (EMI).
The device integrates a full range of protection features, such as drain-source monitoring for short circuit detection, overtemperature warning and shutdown, timeout watchdog for MCU control, and detailed off-state diagnostic via SPI.
The STDRIVE181 is hosted in a VFQFN48L package with an exposed pad.
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All features
- Operating voltage from 6 to 28 V
- Octal half-bridge, or quad H-bridge, gate driver
- Adaptive MOSFET gate control:
- Three steps gate control of external HS/LS
- Programmable gate current up to 120 mA
- Three PWM inputs (up to 50 kHz)
- Low consumption mode (1.05 µA)
- Serial peripheral interface (SPI), 24 bits
- Full range of protections:
- VDS monitoring
- Drain-source monitoring for short circuit detection
- Overtemperature warning and shutdown
- Timeout watchdog for MCU control
- Detailed off-state diagnostic (open load, short circuit to supply or short circuit to GND) via SPI
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STMicroelectronics - STDRIVE181
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| STDRIVE181 | Preview Product is in design stage. EN | VFQFN 7X7X0.9 48L WETT. FLANKS | Industrial | Ecopack2 | 10 | 2026-01-01T00:00:00.000+01:00 | |
| STDRIVE181TR | Active Product is in volume production. | VFQFN 7X7X0.9 48L WETT. FLANKS | Industrial | Ecopack2 | 10 | 2026-01-01T00:00:00.000+01:00 | |
STDRIVE181
Package:
VFQFN 7X7X0.9 48L WETT. FLANKSMaterial Declaration**:
STDRIVE181TR
Package:
VFQFN 7X7X0.9 48L WETT. FLANKSMaterial Declaration**:
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STDRIVE181 | | | distributors No availability of distributors reported, please contact our sales office | ||||||||||
| STDRIVE181TR | | | distributors No availability of distributors reported, please contact our sales office |
STDRIVE181 Preview
STDRIVE181TR Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors