Overview
The L6201PSTR is a full bridge driver IC designed for motor control applications, developed by STMicroelectronics using their advanced Multipower-BCD technology. This technology integrates isolated DMOS power transistors with CMOS and bipolar circuits on the same chip, optimizing both the logic circuitry and the power stage for high performance. The device is particularly suited for controlling DC motors, offering efficient operation at high switching speeds and supply voltages up to 42V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (Vs) | 12 - 48 | V |
| Peak Output Current (Io) | 5 A (L6201), 10 A (L6201PS/L6202/L6203) | A |
| DC Output Current (Io) | 1 A (L6201), 1.5 A (L6202), 4 A (L6201PS/L6203) | A |
| RDS (ON) Resistance | 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
- Full bridge configuration with separate logic inputs for each half-bridge and a common enable
- Cross-conduction protection and dead time protection
- Bootstrap capacitors for efficient driving of upper power DMOS transistors
- Internal voltage reference and quiescent supply current management
- High efficiency and low RDS (ON) resistance
- Available in various packages including SO20, PowerSO20, Powerdip18, and Multiwatt
Applications
The L6201PSTR is ideal for DC motor control applications, including speed and direction control. It can be used in conjunction with current regulators like the L6506 to implement transconductance amplifiers for precise motor speed control. Other applications include general-purpose motor driving, robotics, and industrial automation where high-efficiency and reliable motor control are required.
Q & A
- What is the maximum supply voltage for the L6201PSTR?
The maximum supply voltage is 48V.
- What is the peak output current for the L6201PSTR?
The peak output current is 5A for the L6201 and up to 10A for the L6201PS/L6202/L6203.
- What is the typical RDS (ON) resistance of the L6201PSTR?
The typical RDS (ON) resistance is 0.3 Ω at 25 °C.
- What is the maximum commutation frequency of the L6201PSTR?
The maximum commutation frequency is up to 100 KHz.
- Does the L6201PSTR have thermal shutdown protection?
Yes, it has thermal shutdown protection at 150 °C.
- What are the compatible logic input types for the L6201PSTR?
The logic inputs are TTL, CMOS, and µC compatible.
- How does the L6201PSTR protect against cross-conduction?
The device has built-in cross-conduction protection and dead time protection.
- What is the purpose of the bootstrap capacitors in the L6201PSTR?
The bootstrap capacitors ensure efficient driving of the upper power DMOS transistors.
- Can the L6201PSTR be used for DC motor speed control?
Yes, it is ideally suited for DC motor speed and direction control and can be used with current regulators like the L6506.
- What are the available packages for the L6201PSTR?
The device is available in SO20, PowerSO20, Powerdip18, and Multiwatt packages.
