1.2 Electrical Characteristics
The following table lists the electrical characteristics of the XIFM gate driver.
Note: Conditions: VSUP = 24V and MOSFET = SiC module 5SFG 0500Z330100.
| Parameter | Description | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Power Supply | |||||
| Supply voltage | VCC to GND | 22 | 24 | 27 | V |
| Supply current | Without load | 80 | 85 | 90 | mA |
| With load1 | — | — | 340 | ||
| Over-Voltage Lockout (OVLO) threshold | Primary side | — | 27.5 | 28 | V |
| OVLO level—HI and LO | Secondary side high voltage detect fault level | — | 26.5 | — | V |
| UVLO level—HI and LO | Secondary side low voltage detect fault level | — | 16.5 | — | V |
| Coupling capacitance | Primary to secondary | — | 11 | 12 | pF |
| Positive biasing VGS voltage4 | — | 15 | — | 21 | — |
| Negative biasing VGS voltage4 | — | −10 | — | 0 | |
| Signal I/O | |||||
| Gate output voltage low2, 4 | — | — | −10 | — | V |
| Gate output voltage high2, 4 | — | — | 20 | — | V |
| Fault output (optical signal output) | Open signal output8 | — | 1 (High on fault) | — | Logic |
| Turn-on gate resistance | RGON6 | — | 1.1 | — | Ω |
| Turn-off gate resistance | RGOFF6 | — | 1.1 | — | Ω |
| Gate-emitter capacitance | CGS | — | 0 | — | nF |
| HV/Temperature monitor output | Open signal output3 | 0.5 | — | 10 | kHz |
| Temperature range | −40 °C to 150 °C2 | 0.5 | — | 10 | kHz |
| HV range | 0 to 2500V | 2.5 | — | 10 | kHz |
| MOSFET Short Protection | |||||
| Desaturation (DSAT) monitor voltage | Between drain and source2 | — | 8.7 | — | V |
| Desaturation Time (TDSAT) | DSAT blanking time2, 7 | — | 1 | — | μs |
| Response time after fault | — | — | — | 5000 | ns |
Note:
- The preceding SiC MOSFET dependent conditions assume SiC MOSFET module 5SFG 0500Z330100 with Ciss = TBD nF; Qg = 100 nF operating at 20 kHz.
- Software configurable parameter.
- Shared between HV and temperature signals. One of them can be selected.
- Total (+/− VGS voltage threshold must not exceed 27V).
- Recommended to use ferrite core at supply input lines (Wurth Elektronik P/N 74270031 or 742700381) and shielded cable.
- Can be configured as per user requirement or application dependent.
- Hardware blanking time is set to the present value.
- Software configurable output fault can be set as High or Low on fault, as per requirement.