A3946KLPTR-T درایور ماسفت
درایور ماسفت نیم پل جهت کنترل موتور دی سی ولتاژ بار 60 ولت تراشه A3946 یک آی سی خاص برای برنامه های کاربردی که نیاز قدرت بالای موتور دارد میباشد و دارای دو خروجی راه انداز ماسفتN-CHANEL میباشد که مطابق شکل قابل استفاده میباشد. این تراشه بصورت برد آماده نیز ارائه میشود.
Description
The A3946 is designed specifically for ap pli ca tions 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 for N-channel MOSFETs. An internal top-off charge
pump for the high side allows DC (100% duty cycle) operation
of the half-bridge.
The A3946 is available in a power pack ag e: a 16-lead TSSOP
with ex posed thermal pad (suffix LP). It is lead (Pb) free, with
100% matte tin plated leadframe (suffix -T)
Features and Benefits
▪ On-chip charge pump for 7 V minimum input
supply voltage
▪ High-current gate drive for driving a wide range of
N-channel MOSFETs
▪ Bootstrapped gate drive with top-off charge pump
for 100% duty cycle
▪ Overtemperature protection
▪ Undervoltage protection
▪ –40ºC to 135ºC ambient operation
بدون نظر