Robot power chip

CT1902

100V Single-phase enhancement-mode GaN half-bridge chip.

 1.Description 

The CT1902 is a 100V, 60A, half-bridge SolidGaN in a compact 5.8mm×7.2mm LGA package. Included in the package are two high-performance enhancement-mode GaN FETs, drivers, gate resistors, and driver supply capacitors, offering the industry’s most compact and efficient GaN power solution.

The CT1902 provides two logic inputs for controlling the high-side and low-side GaN FETs for maximum flexibility. The split driver outputs allow for independent adjustment of turn-on and turn-off strengths, optimizing both EMI and efficiency.

Comprehensive fault protection is built into the CT1902, including active bootstrap (BST) voltage control to prevent overcharge and ensure stable gate Drive voltage, independent undervoltage and overvoltage protection for both VCC and BST, and over temperature protection.

With fast propagation delay, excellent delay matching superior dv/dt immunity, and ultra-low in-package parasitic inductance loop, the CT1902 enables designers to achieve substantial improvement in power density and efficiency.

 2.Features 

★ 3.5mΩ Half-Bridge GaN FETs with Gate Driver

★ 80V Continuous, 100V Transient Voltage Rating

★ Capable of up to 5MHz Switching

★ Independent High-Side and Low-Side PWM Inputs

★ Internal Strong and Smart Bootstrap Switch

★ Fast Propagation Delay (14ns Typical)

★ Excellent Delay Matching (1ns Typical)

★ Built-In UVLO, OVLO, OTP Protections

★ 35μA Low VCC Quiescent Current

★ Integrated VCC/BST capacitors

★ High dv/dt Immunity up to 50V/ns

★ Adjustable Turn-on Speeds

★ Optimized for Easy and Low-EMI PCB Layout

 3.Applications 

★Motor driver

 4.Pin information 

13-Pin LGA (5.8mm×7.2mm) package

5.Product Application