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The L6234 is a triple half bridge to drive a brushless DC motor.
It is realized in BCDmultipower technology which combines isolated DMOS power transistors with CMOS and bipolar circuits on the same chip.
By using mixed technology it has been possible to optimize the logic circuitry and the power stage to achieve the best possible performance.
The output DMOS transistors can sustain a very high current due to the fact that the DMOS structure is not affected by the second breakdown effect, the RMS maximum current is practically limited by the dissipation capability of the package.
All the logic inputs are TTL, CMOS and μP compatible. Each channel is controlled by two separate logic inputs.
The L6234 device is available in a 20-pin PowerSO20 package.Key Features
- Supply voltage from 7 to 52 V
- 5 A peak current
- RDSon 0.3 Ω typ. value at 25 °C
- Cross conduction protection
- TTL compatible driver
- Operating frequency up to 150 kHz
- Thermal shutdown
- Intrinsic fast free wheeling diodes
- Input and enable function for each half bridge
- 10 V external reference available
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Sample & Buy
| Part Number | Marketing Status | Package | Packing Type | Temperature (°C) | ECCN (US) | Country of Origin | Approximate Price (US$)* / Qty | Order from ST | Order from Distributors | |
|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||
| L6234PD013TR | Active | PowerSO-20 | Tape And Reel | -40 | 150 | EAR99 | MALAYSIA | 2.854 / 1k | Get sample | Check Availability |
| L6234PD | Active | PowerSO-20 | Tube | -40 | 150 | EAR99 | MALAYSIA | 6.37 / 1k | Buy now | Check Availability |
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
Evaluation Tools
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Picture Part number Manufacturer Description 
STEVAL-IHM043V1 -- 6-Step BLDC sensorless driver board based on the STM32F051 and L6234 Part Number6-Step BLDC sensorless driver board based on the STM32F051 and L6234
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| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| L6234PD | Active | PowerSO-20 | Industrial | Ecopack2 | |
| L6234PD013TR | Active | PowerSO-20 | Industrial | Ecopack2 |
(**) 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.
