Overview
The L6390DTR, produced by STMicroelectronics, is a high-voltage half-bridge gate driver designed for N-channel power MOSFETs or IGBTs. This device is manufactured using the BCD™ (Bipolar-CMOS-DMOS) technology, enabling it to handle high voltage rails up to 600 V. The L6390DTR features a compact and simplified layout, reducing the overall bill of material and making PCB design easier.
The device includes advanced features such as an operational amplifier for current sensing, a comparator for fast fault protection, and an integrated bootstrap diode. It also offers adjustable deadtime, interlocking functions, and smart shutdown capabilities to ensure reliable and efficient operation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | -0.3 to 21 | V |
| Bootstrap Voltage (VBOOT) | -0.3 to 620 | V |
| High-Side Gate Output Voltage (Vhvg) | VOUT - 0.3 to VBOOT + 0.3 | V |
| Low-Side Gate Output Voltage (Vlvg) | -0.3 to VCC + 0.3 | V |
| Driver Current Capability (Source/Sink) | 290 mA / 430 mA | mA |
| Switching Times (Rise/Fall with 1 nF load) | 75/35 nsec | nsec |
| Logic Input Voltage | -0.3 to 15 | V |
| Junction Temperature (TJ) | -150 °C | °C |
| Storage Temperature (Tstg) | -50 to 150 °C | °C |
| Thermal Resistance Junction to Ambient (Rth(JA)) | 120 °C/W | °C/W |
Key Features
- High voltage rail up to 600 V
- dV/dt immunity ± 50 V/nsec in full temperature range
- Driver current capability: 290 mA source, 430 mA sink
- Switching times 75/35 nsec rise/fall with 1 nF load
- 3.3 V, 5 V TTL/CMOS inputs with hysteresis
- Integrated bootstrap diode
- Operational amplifier for advanced current sensing
- Comparator for fast fault protection
- Smart shutdown function
- Adjustable deadtime
- Interlocking function
- Compact and simplified layout
- Bill of material reduction
Applications
- Home appliances
- Motor drivers:
- DC, AC, PMDC, and PMAC motors
- FOC and sensorless BEMF detection systems
- Industrial applications and drives
- Induction heating
- HVAC
- Factory automation
- Power supply systems
Q & A
- What is the maximum voltage the L6390DTR can handle?
The L6390DTR can handle high voltage rails up to 600 V.
- What are the driver current capabilities of the L6390DTR?
The device can source 290 mA and sink 430 mA.
- What is the switching time of the L6390DTR with a 1 nF load?
The switching times are 75 nsec rise and 35 nsec fall with a 1 nF load.
- Does the L6390DTR have built-in protection features?
Yes, it includes a comparator for fast fault protection and a smart shutdown function.
- What types of motors can the L6390DTR drive?
The L6390DTR can drive DC, AC, PMDC, and PMAC motors, including FOC and sensorless BEMF detection systems.
- How does the integrated bootstrap diode work in the L6390DTR?
The integrated bootstrap diode is realized by a high voltage DMOS, driven synchronously with the low-side driver, along with an internal charge pump.
- What is the purpose of the operational amplifier in the L6390DTR?
The operational amplifier is used for advanced current sensing in applications such as field-oriented motor control or sensorless BEMF detection.
- Can the L6390DTR be used in industrial applications?
Yes, the L6390DTR is suitable for industrial applications and drives, including induction heating and factory automation.
- How does the smart shutdown function work in the L6390DTR?
The smart shutdown function allows immediate turn-off of the outputs in case of a fault, minimizing the propagation delay between fault detection and output switch-off.
- What are the packaging options for the L6390DTR?
The device is available in SO-16 tube and tape and reel packaging options.
