Features
- Up to 20V bootstrap voltage half-bridge driver
- Programmable 4.5V to 5.5V gate drive voltage
- Single tri-level PWM input control
- Separate source and sink driver outputs for independent gate turn-on and turn-off control
- High-side peak driver current: 5A
- Low-side peak driver current: 10A
- Separate high-side and low-side programmable dead time control
- Fast propagation delay with low mismatch
- Full military temperature operation -55°C to 125°C ambient range
- 16 Ld hermetic CLCC package
Description
The ISL73041SEH is a PWM input 12V half-bridge GaN FET driver designed to drive low rDS(ON), high QGS enhance mode Gallium Nitride (eGaN) FETs up to 1.5MHz operation for DC/DC switching regulators. An integrated programmable GaN FET gate drive voltage, high-side bootstrap switch, and high gate drive current provide a compact and robust GaN FET half-bridge driver.
The ISL73041SEH is designed to interface directly to the ISL73847SEH dual-phase PWM buck controller to create a high-efficiency point-of-load regulator to power many of the latest low-voltage high-current FPGA and DSP digital core rails.
The ISL73041SEH is offered in a 16 Ld Ceramic Leadless Chip Carrier (CLCC) hermetic package. It is specified to operate across an ambient temperature range of -55°C to +125°C.
Parameters
| Attributes | Value |
|---|---|
| Rating | Space |
| Bus Voltage (Max) (V) | 12 |
| Driver Type | Half Bridge |
| FET Type | GaNFET |
| High Side Rise Time (max) (ns) | 29 |
| High Side Fall Time (max) (ns) | 26 |
| Input VCC (Min) (V) | 4.75 |
| Input VCC (Max) (V) | 13.2 |
| Low Side Rise Time (max) (ns) | 36 |
| Low Side Fall Time (max) (ns) | 30 |
| Drivers (#) | 2 |
| Output Type | Synchronous |
| Peak Output Source Current (A) | 2 (HS) /4 (LS) |
| Peak Output Sink Current (A) | 4 (HS) /8 (LS) |
| Gate Drive (V) | 4.5 |
| Temp. Range (°C) | -55 to +125°C |
| TID LDR (krad(Si)) | 75 |
| DSEE (MeV·cm2/mg) | 86 |
| Flow | RH Hermetic |
| Qualification Level | Class Ve, EM |
| Die Sale Availability? | Yes |
| PROTO Availability? | Yes |
Application Block Diagrams
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Radiation Hardened Versal Power Tree
A radiation hardened power supply for satellite applications using AMD Versal.
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Additional Applications
- High current DC/DC Point-of-Load (POL) for FPGA and DSP supply rails
- 12V to 1V POL regulation
- GaN FET motor drivers