Datasheet Analog Devices LTC7893AUFDM#WPBF
| Manufacturer | Analog Devices |
| Series | LTC7893 |
| Part Number | LTC7893AUFDM#WPBF |
100V Low IQ, Synchronous Boost Controller for GaN FETs in 28-Lead QFN (4mm x 5mm, Plastic Side Wettable) package
Datasheets
100V Low IQ, Synchronous Boost Controller for GaN FETs in 28-Lead QFN (4mm x 5mm, Plastic Side Wettable) package
Detailed Description
The LTC7893 is a high performance, step-up, dc-to-dc switching regulator controller that drives all N-channel synchronous gallium nitride (GaN) field effect transistor (FET) power stages from output voltages up to 100V.
The LTC7893 solves many of the challenges traditionally faced when using GaN FETs. The LTC7893 simplifies the application design while requiring no protection diodes and no other additional external components compared to a silicon metal-oxide semiconductor field effect transistor (MOSFET) solution.
The internal smart bootstrap switches prevent overcharging of the BOOST pin to the SW pin high-side driver supply during dead times, protecting the gate of the top GaN FET. The dead times of the LTC7893 can optionally be optimized with external resistors for margin or to tailor the application for higher efficiency and allowing for high frequency operation.
The gate drive voltage of the LTC7893 can be precisely adjusted from 4V to 5.5V to optimize performance, and to allow the use of different GaN FETs, or even logic level MOSFETs. When biased from the boost converter regulator output, the LTC7893 can operate from an input supply as low as 1V after start-up.
Model Line
- LTC7893AUFDM#PBF LTC7893AUFDM#TRPBF LTC7893AUFDM#WPBF LTC7893AUFDM#WTRPBF
Manufacturer's Classification
- Power Management > Switching Regulators & Controllers
Other Names:
LTC7893AUFDMWPBF, LTC7893AUFDM WPBF