Overview
The L6234PD, produced by STMicroelectronics, is a triple half-bridge driver designed to drive brushless DC motors. It is fabricated using BCDmultipower technology, which integrates isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. This mixed technology allows for optimized logic circuitry and power stage performance. The device is particularly suited for high-current applications due to its DMOS structure, which is not affected by the second breakdown effect, and it features intrinsic fast free-wheeling diodes to enhance efficiency.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 7 to 52 | V |
| Peak Current | 5 | A |
| RDSon | 0.3 | Ω (typ. at 25 °C) |
| Operating Frequency | Up to 150 | kHz |
| Thermal Shutdown | Approx. 150 | °C |
| Operating Temperature Range | -40 to 150 | °C |
| Package | PowerSO-20 | |
| RoHS Compliance | Ecopack2 |
Key Features
- Supply voltage from 7 to 52 V
- 5 A peak current capability
- TTL, CMOS, and μP compatible logic inputs
- Cross conduction protection
- Thermal shutdown protection
- Intrinsic fast free-wheeling diodes
- Input and enable function for each half bridge
- 10 V external reference available
- Low quiescent current of 6.5 mA (typ. at Vs=42V)
Applications
The L6234PD is versatile and can be used in a wide range of applications, including:
- Driving brushless DC motors
- Half bridge and full bridge configurations
- Paralleling channels to reduce RDSon and increase output current capability
- Automotive and industrial motor control systems
- Robotics and automation
- Medical devices requiring precise motor control
Q & A
- What is the L6234PD used for?
The L6234PD is used to drive brushless DC motors.
- What is the supply voltage range of the L6234PD?
The supply voltage range is from 7 to 52 V.
- What is the peak current capability of the L6234PD?
The peak current capability is 5 A.
- What type of logic inputs does the L6234PD support?
The L6234PD supports TTL, CMOS, and μP compatible logic inputs.
- Does the L6234PD have thermal shutdown protection?
Yes, it has thermal shutdown protection that activates at approximately 150 °C.
- What is the operating temperature range of the L6234PD?
The operating temperature range is from -40 to 150 °C.
- What package is the L6234PD available in?
The L6234PD is available in a 20-pin PowerSO-20 package.
- Is the L6234PD RoHS compliant?
Yes, it is RoHS compliant with an Ecopack2 rating.
- Can the L6234PD be used in half bridge and full bridge configurations?
Yes, it can be used in both half bridge and full bridge configurations.
- Can channels of the L6234PD be paralleled to increase output current?
Yes, channels can be paralleled to reduce RDSon and increase output current capability.
