Overview
The L6201PS is a monolithic full bridge switching motor driver produced by STMicroelectronics. It is realized in the Multipower-BCD technology, which integrates isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. This technology allows for optimized logic circuitry and power stages, achieving high performance and efficiency. The device is particularly suited for controlling DC motors, providing the necessary power stage for both speed and direction control.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (Vs) | 12 - 48 | V |
| Peak Output Current (Io) | 5 A (non-repetitive, < 1 ms) | A |
| DC Output Current (Io) | 1 A (L6201), 1.5 A (L6202), 4 A (L6201PS/L6203) | A |
| RDS (ON) | 0.3 Ω (typical at 25 °C) | Ω |
| Commutation Frequency | Up to 100 KHz | KHz |
| Thermal Shutdown | 150 °C | °C |
| Input/Enable Voltage | -0.3 to +7 V | V |
| Total Power Dissipation (Ptot) | 0.9 - 2.3 W (depending on package and conditions) | W |
| Storage and Junction Temperature | -40 to +150 °C | °C |
Key Features
- TTL, CMOS, and µC compatible logic inputs
- Cross-conduction protection and dead time protection
- Internal logic supply and thermal shutdown
- Bootstrap capacitors for efficient driving of upper power DMOS transistors
- High efficiency and low RDS (ON) of 0.3 Ω (typical at 25 °C)
- Operating frequency up to 100 KHz
- Integrated current sensing and feedback for motor current control
Applications
The L6201PS is ideal for controlling DC motors, providing the necessary power stage for both speed and direction control. It can be used in various motor control applications, including:
- Bidirectional DC motor control
- Bipolar stepper motor control when combined with other ICs like the L6506 or L297
- Transconductance amplifier configurations for speed control
Q & A
- What is the maximum supply voltage for the L6201PS?
The maximum supply voltage for the L6201PS is 48 V.
- What is the peak output current of the L6201PS?
The peak output current of the L6201PS is 5 A (non-repetitive, < 1 ms).
- What is the typical RDS (ON) of the L6201PS?
The typical RDS (ON) of the L6201PS is 0.3 Ω at 25 °C.
- What is the operating frequency range of the L6201PS?
The operating frequency range of the L6201PS is up to 100 KHz.
- Does the L6201PS have thermal shutdown protection?
Yes, the L6201PS has thermal shutdown protection at 150 °C.
- What are the compatible logic input types for the L6201PS?
The L6201PS has TTL, CMOS, and µC compatible logic inputs.
- How does the L6201PS protect against cross-conduction?
The L6201PS has built-in cross-conduction protection and dead time protection.
- What is the purpose of the bootstrap capacitors in the L6201PS?
The bootstrap capacitors ensure efficient driving of the upper power DMOS transistors.
- Can the L6201PS be used for bipolar stepper motor control?
Yes, the L6201PS can be used for bipolar stepper motor control when combined with other ICs like the L6506 or L297.
- How can the L6201PS be used in a transconductance amplifier configuration?
The L6201PS can be combined with a current regulator like the L6506 to implement a transconductance amplifier for speed control.
