Overview
The L2293QTR, produced by STMicroelectronics, is a monolithic integrated high voltage, high current four-channel driver. This device is designed to accept standard DTL or TTL logic levels and is capable of driving inductive loads such as relays, solenoids, DC motors, and stepping motors, as well as switching power transistors. The L2293QTR features a separate supply input for the logic, allowing operation at a lower voltage, and includes internal clamp diodes for protection. It is assembled in a VFQFPN-32L 5x5 package with an exposed pad available for heatsinking, making it suitable for use in switching applications at frequencies up to 50 kHz.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VS) | 36 | V |
| Logic Supply Voltage (VSS) | 2.8 to 36 | V |
| Input Voltage (Vi) | 7 | V |
| Peak Output Current (Io) | 1.2 A (non-repetitive, 100 μs) | A |
| Output Current Capability per Channel | 600 mA | A |
| Total Power Dissipation at Tpins = 90 °C | 4 | W |
| Junction Temperature (TJ) | -40 to 150 | °C |
| Thermal Resistance Junction-Ambient (Rth(JA)) | 42 | °C/W |
| Rise Time (tr) | 250 ns | ns |
| Fall Time (tf) | 250 ns | ns |
| Turn-on Delay (ton) | 750 ns | ns |
| Turn-off Delay (toff) | 200 ns | ns |
Key Features
- Internal clamp diodes for protection
- 600 mA output current capability per channel
- 1.2 A peak output current (non-repetitive) per channel
- Enable facility for each pair of channels
- Logical '0' input voltage up to 1.5 V for high noise immunity
- Overtemperature protection
- Separate supply input for the logic, allowing operation at a lower voltage
- Suitable for use in switching applications at frequencies up to 50 kHz
Applications
The L2293QTR is designed for various applications involving the control of inductive loads. These include:
- Driving relays and solenoids
- Controlling DC and stepping motors
- Switching power transistors
- General-purpose switching applications requiring high current and high voltage capabilities
Q & A
- What is the maximum supply voltage for the L2293QTR?
The maximum supply voltage (VS) is 36 V.
- What is the output current capability per channel?
The output current capability per channel is 600 mA.
- What is the peak output current per channel?
The peak output current per channel is 1.2 A (non-repetitive, 100 μs).
- Does the L2293QTR have internal clamp diodes?
- What is the thermal resistance junction-ambient (Rth(JA)) of the L2293QTR?
The thermal resistance junction-ambient (Rth(JA)) is 42 °C/W.
- What is the package type of the L2293QTR?
The L2293QTR is assembled in a VFQFPN-32L 5x5 package.
- What are the typical switching times for the L2293QTR?
The rise and fall times are typically 250 ns each, with turn-on and turn-off delays of 750 ns and 200 ns, respectively.
- Can the L2293QTR be used in high-frequency switching applications?
- Does the L2293QTR have overtemperature protection?
- How many enable inputs does the L2293QTR have?
The L2293QTR has two enable inputs, one for each pair of channels.
