Overview
The L6225PDTR, produced by STMicroelectronics, is a DMOS Dual Full Bridge Driver designed for motor control applications. It is realized in MultiPower-BCD technology, which combines isolated DMOS power transistors with CMOS and bipolar circuits on the same chip. This device is particularly suited for driving bipolar stepper motors and dual or quad DC motors. The L6225PDTR is available in a 20-pin PowerSO package, offering a compact and efficient solution for various motor control needs.
Key Specifications
| Parameter | Test Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Supply Voltage (VS) | VSA = VSB = VS | 8 | - | 52 | V |
| Output Peak Current (IOUT) | - | - | 2.8 A | - | A |
| Output RMS Current (IOUT) | - | - | 1.4 A | - | A |
| RDS(ON) | Tj = 25 °C | 1.47 | 1.69 | 2.35 | Ω |
| Switching Frequency (fsw) | - | - | 100 kHz | - | - |
| Operating Junction Temperature (Tj) | - | -25 | - | 125 | °C |
| Thermal Shutdown Temperature (Tj(OFF)) | - | - | 165 | - | °C |
Key Features
- Non-dissipative overcurrent protection
- Parallel operation capability
- Cross conduction protection with dead time (td = 1 µs typical)
- Thermal shutdown protection
- Under voltage lockout
- Integrated fast free-wheeling diodes
- Bootstrap supply through an internal charge pump circuit
- TTL/CMOS compatible logic inputs
Applications
- Bipolar stepper motor control
- Dual or quad DC motor control
- General purpose motor control applications
Q & A
- What is the operating supply voltage range of the L6225PDTR?
The operating supply voltage range is from 8 V to 52 V.
- What is the peak output current of the L6225PDTR?
The peak output current is 2.8 A.
- What is the typical RDS(ON) value of the L6225PDTR at 25 °C?
The typical RDS(ON) value is 1.69 Ω.
- What is the maximum switching frequency of the L6225PDTR?
The maximum switching frequency is up to 100 kHz.
- Does the L6225PDTR have thermal shutdown protection?
- What type of motor can the L6225PDTR control?
The L6225PDTR can control bipolar stepper motors and dual or quad DC motors.
- Is the L6225PDTR compatible with TTL/CMOS logic inputs?
- What is the package type of the L6225PDTR?
The package type is 20-pin PowerSO.
- Does the L6225PDTR have integrated fast free-wheeling diodes?
- How does the L6225PDTR achieve cross conduction protection?
Cross conduction protection is achieved using a dead time (td = 1 µs typical) between the switch off and switch on of two Power MOS in one leg of a bridge.
