Overview
The L6387E is a high-voltage gate driver manufactured by STMicroelectronics using the BCD™ “offline” technology. This device is designed to drive a half-bridge of power MOSFET or IGBT devices. The high-side (floating) section can operate with voltage rails up to 600 V. The L6387E features two input pins and two output pins, ensuring that the outputs toggle in phase with the inputs. The logic inputs are CMOS/TTL compatible, facilitating easy interfacing with controlling devices. The device is available in DIP-8 and SO-8 packaging options.
Key Specifications
| Parameter | Value |
|---|---|
| High-side Voltage Rail | Up to 600 V |
| dV/dt Immunity | ± 50 V/nsec (full temperature range) |
| Driver Current Capability | 400 mA source, 650 mA sink |
| Switching Times | 50/30 nsec rise/fall with 1 nF load |
| Logic Inputs | CMOS/TTL Schmitt trigger with hysteresis and pull-down |
| Bootstrap Diode | Internal bootstrap diode |
| Output Synchronization | Outputs in phase with inputs |
| Interlocking Function | Prevents simultaneous high driving |
| Operating Temperature | -40°C to 150°C |
| Package Options | DIP-8, SO-8 |
Key Features
- High voltage rail up to 600 V
- dV/dt immunity ± 50 V/nsec in full temperature range
- Driver current capability: 400 mA source, 650 mA sink
- Switching times: 50/30 nsec rise/fall with 1 nF load
- CMOS/TTL Schmitt trigger inputs with hysteresis and pull-down
- Internal bootstrap diode
- Outputs in phase with inputs
- Interlocking function to prevent simultaneous high driving
Applications
The L6387E is suitable for various high-voltage applications, including but not limited to:
- Power supplies and DC-DC converters
- Motor control and drives
- Industrial automation and control systems
- High-voltage power management systems
Q & A
- What is the maximum high-side voltage rail for the L6387E?
The maximum high-side voltage rail for the L6387E is up to 600 V.
- What are the driver current capabilities of the L6387E?
The L6387E can source 400 mA and sink 650 mA.
- What is the switching time of the L6387E with a 1 nF load?
The switching times are 50/30 nsec rise/fall with a 1 nF load.
- Does the L6387E have internal bootstrap diode?
Yes, the L6387E features an internal bootstrap diode.
- What is the operating temperature range of the L6387E?
The operating temperature range is -40°C to 150°C.
- What are the package options available for the L6387E?
The device is available in DIP-8 and SO-8 packaging options.
- Are the logic inputs of the L6387E CMOS/TTL compatible?
Yes, the logic inputs are CMOS/TTL compatible with Schmitt trigger and pull-down.
- Does the L6387E have an interlocking function?
Yes, it has an interlocking function to prevent simultaneous high driving.
- What is the dV/dt immunity of the L6387E?
The dV/dt immunity is ± 50 V/nsec in the full temperature range.
- How do the outputs of the L6387E synchronize with the inputs?
The outputs toggle in phase with the inputs.
