Overview
The L6384E 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, with the high-side (floating) section capable of operating with a voltage rail up to 600 V. The L6384E features integrated bootstrap diode, deadtime setting, and undervoltage lockout, making it a robust solution for various high-voltage applications. It is available in DIP-8 and SO-8 packages, ensuring flexibility in design and implementation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage (VOUT) | -3 to 580 V | V |
| Supply Voltage (VCC) | 0.3 to 14.6 V | V |
| Floating Supply Voltage (VBOOT) | -1 to 618 V | V |
| Driver Current Capability | 400 mA source, 650 mA sink | mA |
| Switching Times | 50/30 nsec rise/fall with 1 nF load | nsec |
| dV/dt Immunity | ± 50 V/nsec | V/nsec |
| Logic Input Voltage | -0.3 to VCC + 0.3 V | V |
| Shutdown/Deadtime Voltage | -0.3 to VCC + 0.3 V | V |
| Junction Temperature | -45 to 150 °C | °C |
| Thermal Resistance (Rth(JA)) | 150 °C/W (SO-8), 100 °C/W (DIP-8) | °C/W |
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
- Shutdown input and deadtime setting
- Undervoltage lockout (UVLO) protection
- Integrated bootstrap diode and clamping on VCC
- Available in DIP-8 and SO-8 packages
Applications
- Home appliances
- Induction heating
- HVAC (Heating, Ventilation, and Air Conditioning)
- Industrial applications and drives
- Motor drivers – DC, AC, PMDC, and PMAC motors
- Lighting applications
- Factory automation
- Power supply systems
Q & A
- What is the maximum voltage rail the L6384E can handle?
The L6384E can handle a high-side voltage rail up to 600 V.
- What are the driver current capabilities of the L6384E?
The L6384E can source 400 mA and sink 650 mA.
- What is the dV/dt immunity of the L6384E?
The L6384E has a dV/dt immunity of ± 50 V/nsec in the full temperature range.
- What are the switching times of the L6384E with a 1 nF load?
The switching times are 50 nsec rise and 30 nsec fall with a 1 nF load.
- Does the L6384E have integrated protection features?
Yes, it includes undervoltage lockout (UVLO) protection and clamping on VCC.
- What types of packages are available for the L6384E?
The L6384E is available in DIP-8 and SO-8 packages.
- How is the deadtime set in the L6384E?
The deadtime can be set using an external resistor connected to the DT/SD pin.
- What is the purpose of the integrated bootstrap diode in the L6384E?
The integrated bootstrap diode replaces the external bootstrap diode, providing a more compact and reliable solution for supplying the high-side driver.
- What are some common applications of the L6384E?
Common applications include home appliances, induction heating, HVAC, industrial drives, motor drivers, lighting applications, factory automation, and power supply systems.
- What is the thermal resistance of the L6384E in different packages?
The thermal resistance is 150 °C/W for SO-8 packages and 100 °C/W for DIP-8 packages.
