Datasheet Summary
Half-Bridge Power MOSFET Controller
A3946KLB SOIC
Data Sheet 29319.150
VREG CP2 CP1 PGND GL S
1 2 3 4 5 6 7 8
16 VBB 15 VREF 14 DT 13 LGND 12 RESET 11 IN2
The A3946 is designed specifically for applications that require high power unidirectional dc motors, three-phase brushless dc motors, or other inductive loads. The A3946 provides two high-current gate drive outputs that are capable of driving a wide range of power N-channel MOSFETs. The high-side gate driver switches an N-channel MOSFET that controls current to the load, while the low-side gate driver switches an N-channel MOSFET as a synchronous rectifier. A bootstrap capacitor provides the above-battery supply voltage required...