Design targets

Gate-driver configuration

Six outputs for three half-bridges using external N-channel MOSFETs

Switch-node voltage class

80 V; operating margins and transients require evaluation

Gate-driver bias supply

7–15 V; startup depends on undervoltage-lockout conditions

Peak gate turn-on current

0.5 A target based on a typical reference value at 12 V bias, 0 V output and 25 °C junction temperature

Deadtime control

Programmable using an external resistor

High-side bias

Bootstrap with charge-pump support; external components required

Pin compatibility

24-pin signal-assignment compatibility target

Ambient-temperature range

−40 to +125 °C

Practical operating notes

• Design is complete and pre-silicon. The listed specifications are design targets, not measured results. Typical reference values are not guaranteed performance limits for this design.
• The six outputs drive the gates of external power MOSFETs. The 0.5 A figure is peak gate turn-on current, not motor-load current. An external controller supplies pulse-width modulation (PWM) commands and commutation; the power stage, current sensing and fault response require system-level design.
• The 80 V switch-node class requires appropriate operating margin and transient control. The 7–15 V driver-bias target does not guarantee startup at 7 V under every condition; evaluate undervoltage-lockout thresholds and their settings.
• Deadtime is set by an external resistor and can be disabled. Review controller timing, high-side input inversion and low-side override behavior to prevent unintended simultaneous conduction.
• High-side operation uses bootstrap bias with charge-pump support and requires external bootstrap diodes and capacitors. Evaluate startup and refresh behavior, gate charge, leakage and duty cycle before relying on extended high-side on-time.
• Matching the 24-pin signal assignments is a compatibility target. Package variant, footprint, electrical and timing behavior, thermal limits and board-level operation still require validation before interchangeability can be established.