Overview
The L6398D, 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 device features a high-side (floating) section capable of handling voltage rails up to 600 V, making it suitable for various high-voltage applications. The logic inputs are CMOS/TTL compatible down to 3.3 V, facilitating easy interfacing with microcontrollers or DSPs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| High Voltage Rail | Up to 600 | V |
| dV/dt Immunity | ± 50 | V/ns |
| Driver Current Capability (Source) | 290 | mA |
| Driver Current Capability (Sink) | 430 | mA |
| Switching Times (Rise/Fall) | 75/35 | ns (with 1 nF load) |
| Logic Input Compatibility | 3.3 V, 5 V TTL/CMOS | |
| Deadtime | 320 | ns |
| Operating Temperature Range | -40 to 125 | °C |
| Package Type | SO-8 |
Key Features
- High voltage rail up to 600 V.
- dV/dt immunity ± 50 V/ns in full temperature range.
- Driver current capability: 290 mA source, 430 mA sink.
- Switching times: 75/35 ns rise/fall with 1 nF load.
- 3.3 V, 5 V TTL/CMOS input comparators with hysteresis.
- Integrated bootstrap diode.
- Fixed 320 ns deadtime.
- Interlocking function.
- Compact and simplified layout.
- Bill of material reduction.
- Flexible, easy, and fast design.
Applications
The L6398D is suitable for various high-voltage applications, including:
- Motor drivers for home appliances.
- Factory automation.
- Industrial drives.
- Fans and other high-voltage motor control systems.
Q & A
- What is the maximum voltage rail the L6398D can handle?
The L6398D can handle a voltage rail up to 600 V. - What is the driver current capability of the L6398D?
The driver current capability is 290 mA source and 430 mA sink. - What are the switching times for the L6398D with a 1 nF load?
The switching times are 75 ns rise and 35 ns fall with a 1 nF load. - Is the L6398D compatible with 3.3 V and 5 V logic inputs?
Yes, the L6398D is compatible with 3.3 V and 5 V TTL/CMOS logic inputs. - Does the L6398D have an integrated bootstrap diode?
Yes, the L6398D features an integrated bootstrap diode. - What is the fixed deadtime of the L6398D?
The fixed deadtime is 320 ns. - What are the operating temperature ranges for the L6398D?
The operating temperature range is -40 to 125 °C. - In what package type is the L6398D available?
The L6398D is available in an SO-8 package. - What are some common applications of the L6398D?
Common applications include motor drivers for home appliances, factory automation, industrial drives, and fans. - Does the L6398D have an interlocking function?
Yes, the L6398D includes an interlocking function to prevent simultaneous high and low side conduction.
