Overview
The L6393D, produced by STMicroelectronics, is a high-voltage device manufactured using the BCD™ “offline” technology. It is a single-chip half-bridge gate driver designed for N-channel power MOSFETs or IGBTs. The high-side (floating) section of the L6393D can withstand a voltage rail up to 600 V, making it suitable for high-voltage applications. The logic inputs are CMOS/TTL compatible down to 3.3 V, facilitating easy interfacing with microcontrollers or DSPs. The IC also includes an uncommitted comparator for protections against overcurrent, overtemperature, and other potential issues.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| High-side gate output voltage | VOUT - 0.3 to Vboot + 0.3 | V |
| Low-side gate output voltage | -0.3 to VCC + 0.3 | V |
| Bootstrap voltage | -0.3 to 620 | V |
| Driver current capability | 290 mA source, 430 mA sink | mA |
| Switching times (rise/fall) | 75/35 nsec with 1 nF load | nsec |
| dV/dt immunity | ± 50 V/nsec | V/nsec |
| Logic input voltage | -0.3 to 15 | V |
| Operating temperature | -40 to 125 | °C |
| Package | SO-14 | |
| RoHS Compliance Grade | Ecopack2 |
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 CMOS/TTL inputs comparators with hysteresis
- Integrated bootstrap diode
- Uncommitted comparator for protections
- Adjustable dead-time
- Compact and simplified layout
- Bill of material reduction
- Flexible, easy, and fast design
Applications
- Motor drivers for home appliances
- Factory automation
- Industrial drives and fans
- HID ballasts
- Power supply units
Q & A
- What is the maximum voltage the high-side section of the L6393D can withstand?
The high-side section can withstand a voltage rail up to 600 V. - What are the logic input voltage levels compatible with the L6393D?
The logic inputs are CMOS/TTL compatible down to 3.3 V. - What is the driver current capability of the L6393D?
The driver current capability is 290 mA source and 430 mA sink. - What are the switching times for the L6393D with a 1 nF load?
The switching times are 75/35 nsec rise/fall with a 1 nF load. - Does the L6393D have integrated protection features?
Yes, it includes an uncommitted comparator for protections against overcurrent, overtemperature, etc. - What is the operating temperature range of the L6393D?
The operating temperature range is -40 to 125 °C. - What package options are available for the L6393D?
The L6393D is available in SO-14 package. - Is the L6393D RoHS compliant?
Yes, it is RoHS compliant with an Ecopack2 grade. - What are some typical applications of the L6393D?
Typical applications include motor drivers for home appliances, factory automation, industrial drives and fans, HID ballasts, and power supply units. - How is the dead time adjusted in the L6393D?
The dead time is adjustable via a resistor connected between the DT pin and ground.
