Overview
The L6234 is a triple half-bridge driver designed to drive brushless DC motors. It is realized in BCDmultipower technology, which combines isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. This mixed technology allows for optimized logic circuitry and power stages, achieving high performance. The device is suitable for a wide range of applications due to its robust features and flexible configuration options.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 7 to 52 | V |
| Output Current (Max) | 5 A (peak), 4 A (DC) | A |
| RDSon | 0.3 Ω (typ. at 25°C) | Ω |
| Operating Frequency | Up to 150 kHz | kHz |
| Operating Temperature Range | -40 to +150 °C | °C |
| Package Style | PowerSO20, PowerDIP 20 (16+2+2) | |
| Mounting Method | Surface Mount | |
| Total Power Dissipation | 2.3 W (at TA = 70°C) | W |
| Junction Temperature Range | -40 to 125 °C | °C |
Key Features
- Supply voltage from 7 to 52 V
- Peak current of 5 A and DC current of 4 A
- RDSon of 0.3 Ω (typ. at 25°C)
- Cross conduction protection
- TTL compatible driver
- Operating frequency up to 150 kHz
- Thermal shutdown at approximately 150 °C
- Intrinsic fast free wheeling diodes
- Input and enable function for each half bridge
- 10 V external reference available
Applications
The L6234 is versatile and can be used in various applications, including:
- Driving brushless DC motors
- Half bridge driver using one channel
- Full bridge driver using two channels
- Paralleling channels to reduce RDSon and increase output current capability
Q & A
- What is the L6234 used for? The L6234 is used to drive brushless DC motors.
- What is the supply voltage range of the L6234? The supply voltage range is from 7 to 52 V.
- What is the maximum output current of the L6234? The maximum output current is 5 A (peak) and 4 A (DC).
- What is the typical RDSon value of the L6234? The typical RDSon value is 0.3 Ω at 25°C.
- What protection features does the L6234 have? The L6234 has cross conduction protection and thermal shutdown at approximately 150 °C.
- What is the operating frequency range of the L6234? The operating frequency range is up to 150 kHz.
- What types of packages are available for the L6234? The L6234 is available in PowerSO20 and PowerDIP 20 (16+2+2) packages.
- Can the L6234 channels be paralleled? Yes, the channels can be paralleled to reduce RDSon and increase output current capability.
- What is the junction temperature range of the L6234? The junction temperature range is -40 to 125 °C.
- Are the inputs of the L6234 TTL compatible? Yes, the inputs are TTL, CMOS, and μP compatible.
