L6234D STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
STMicroelectronics L6234D is a 3-phase brushless DC motor controller delivering up to 2.5 A output current, housed in a 20-pin SOIC package, designed for variable-speed BLDC motor drives in hard disk drives, fans, and consumer appliance applications.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- L6234D Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $28.5000(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3-phase brushless DC motor controller with up to 2.5 A peak output current per phase for mid-power motor drives
- 20-pin SOIC-20 package with 0.25 inch pitch enabling compact SMD layout on motor control PCBs
- Integrated gate drivers for 3-phase H-bridge switching reducing external component count
- Single-function IC architecture simplifying firmware interface with dedicated motor phase control logic
Applications
The L6234D drives 3-phase BLDC motors in hard disk drive spindle actuators, cooling fans, and small household appliances requiring smooth variable-speed control up to 2.5 A per phase. Its integrated gate drive circuitry reduces the external component count compared to discrete MOSFET implementations, saving PCB space in compact motor control modules. Engineers also use it in robotic joint actuators, optical disc drives, and servo positioning systems where a self-contained 3-phase drive IC in an SOIC-20 package simplifies layout and thermal management.
Specifications
| YTEOL | 0 |
| Analog IC - Other Type | 3-PHASE BRUSHLESS DC MOTOR CONTROLLER |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Output Current-Max | 2.5A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 48V |
| Supply Voltage-Min (Vsup) | 8V |
| Supply Voltage-Nom (Vsup) | 42V |
| Surface Mount | YES |
| Technology | BCDMOS |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output current rating does the L6234D support and how many motor phases does it drive?
The L6234D supports a maximum output current of 2.5 A and is designed to drive 3-phase brushless DC motors through an integrated 3-phase H-bridge. This 2.5 A rating per output phase is sufficient for small to mid-sized BLDC motors used in hard disk spindles, cooling fans rated up to 30 W, and compact robotic actuators requiring smooth commutation control from a single 20-pin SOIC IC.
Which BLDC motor applications benefit most from the L6234D compared to discrete MOSFET gate driver solutions?
The L6234D is most advantageous in space-constrained motor control designs where replacing discrete MOSFET drivers with a single SOIC-20 IC reduces PCB area significantly. Hard disk drive spindle controllers, brushless fan speed controllers, and small servo drives operating at up to 2.5 A benefit from the integrated 3-phase gate drive circuitry, which eliminates 6 external gate resistors and bootstrap components, cutting component count by more than 10 parts per motor channel.
What package does the L6234D use and how does it affect thermal management in motor drive designs?
The L6234D uses a 20-pin PDSO (SOIC-20) plastic small-outline package with 0.25 inch row spacing. In motor drive designs delivering the full 2.5 A output, the SOIC-20 thermal resistance requires adequate PCB copper pours under and around the package to dissipate heat; for continuous operation near the 2.5 A maximum, designers should calculate junction temperature using the package's thermal resistance and ensure the PCB copper area keeps junction temperature below 150°C.
Is the L6234D still in active production and what lifecycle considerations apply to new designs?
The L6234D carries a YTEOL (years to end of life) rating of 0, indicating it is at or near end-of-life status. Designers starting new motor control projects that require 3-phase BLDC drive at up to 2.5 A should evaluate replacement devices from STMicroelectronics' current BLDC driver portfolio such as the L6234PD or newer motor control ICs, while existing L6234D users should perform a last-time-buy analysis and secure adequate stock from authorized distributors to cover remaining production volumes.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $30.0000 | $30.00 |
| 9+ | $28.5000 | $256.50 |
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