Overview
The L6384D, produced by STMicroelectronics, is a high-voltage half-bridge driver IC designed to drive N-channel power MOSFETs and IGBTs in a synchronous configuration. This device is manufactured using the BCD (Bipolar-CMOS-DMOS) technology, enabling it to handle high voltage rails up to 600 V. The L6384D features a half-bridge driver structure that simplifies the control of power devices in various applications, including home appliances, industrial drives, and power supply systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage (VOUT) | -3 to VBOOT - 18 | V |
| Supply Voltage (VCC) | -0.3 to 14.6 | V |
| Floating Supply Voltage (VBOOT) | -1 to 618 | V |
| High-Side Gate Output Voltage (VHVG) | -1 to VBOOT | V |
| Low-Side Gate Output Voltage (VLVG) | -0.3 to VCC + 0.3 | V |
| Logic Input Voltage (VI) | -0.3 to VCC + 0.3 | V |
| Shutdown/Deadtime Voltage (VSD) | -0.3 to VCC + 0.3 | V |
| Driver Current Capability | 400 mA source, 650 mA sink | mA |
| Switching Times | 50/30 nsec rise/fall with 1 nF load | nsec |
| Junction Temperature (TJ) | -45 to 125 | °C |
| Storage Temperature (TS) | -50 to 150 | °C |
| Thermal Resistance Junction to Ambient (Rth(JA)) | 150 (SO-8), 100 (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
- Matched delays between low-side and high-side sections for simplified high-frequency operation
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 L6384D can handle?
The L6384D can handle a high voltage rail up to 600 V.
- What are the driver current capabilities of the L6384D?
The L6384D can source 400 mA and sink 650 mA.
- What are the switching times of the L6384D with a 1 nF load?
The switching times are 50 nsec rise and 30 nsec fall with a 1 nF load.
- Does the L6384D have integrated bootstrap diode functionality?
Yes, the L6384D features an integrated bootstrap diode, eliminating the need for an external diode.
- What types of inputs does the L6384D support?
The L6384D supports CMOS/TTL Schmitt trigger inputs with hysteresis and pull-down.
- How is the deadtime setting configured on the L6384D?
The deadtime can be set using an external resistor connected to the DT/SD pin.
- What is the purpose of the undervoltage lockout (UVLO) protection in the L6384D?
The UVLO protection ensures the device operates correctly by preventing it from functioning below a certain VCC voltage threshold.
- In what packages is the L6384D available?
The L6384D is available in DIP-8 and SO-8 packages.
- What are some common applications of the L6384D?
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 junction to ambient for the SO-8 and DIP-8 packages?
The thermal resistance junction to ambient is 150 °C/W for SO-8 and 100 °C/W for DIP-8 packages.
