Datasheet Linear Technology LTC4444IMS8E-5#PBF — Ficha de datos

LTC4444-5
High Voltage Synchronous
N-Channel MOSFET Driver
FEATURES DESCRIPTION n The LTCВ®4444-5 is a high frequency high voltage gate
driver that drives two N-channel MOSFETs in a synchronous DC/DC converter with supply voltages up to 100V.
This powerful driver reduces switching losses in MOSFETs
with high gate capacitance. n Bootstrap Supply Voltage to 114V
Wide VCC Voltage: 4.5V to 13.5V
Adaptive Shoot-Through Protection
1.4A Peak Top Gate Pull-Up Current
1.75A Peak Bottom Gate Pull-Up Current
1.5О© Top Gate Driver Pull-Down
0.75О© Bottom Gate Driver Pull-Down
5ns Top Gate Fall Time Driving 1nF Load
8ns Top Gate Rise Time Driving 1nF Load
3ns Bottom Gate Fall Time Driving 1nF Load
6ns Bottom Gate Rise Time Driving 1nF Load
Drives Both High and Low Side N-Channel MOSFETs
Undervoltage Lockout
Thermally Enhanced 8-Pin MSOP Package n The LTC4444-5 contains undervoltage lockout circuits that
disable the external MOSFETs when activated. Adaptive
shoot-through protection prevents both MOSFETs from
conducting simultaneously. …