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LT1160CN Datasheet(PDF) 1 Page - Linear Technology |
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LT1160CN Datasheet(HTML) 1 Page - Linear Technology |
1 / 16 page 1 LT1160/LT1162 Half-/Full-Bridge N-Channel Power MOSFET Drivers s Floating Top Driver Switches Up to 60V s Drives Gate of Top N-Channel MOSFET above Load HV Supply s 180ns Transition Times Driving 10,000pF s Adaptive Nonoverlapping Gate Drives Prevent Shoot-Through s Top Drive Protection at High Duty Cycles s TTL/CMOS Input Levels s Undervoltage Lockout with Hysteresis s Operates at Supply Voltages from 10V to 15V s Separate Top and Bottom Drive Pins The LT ®1160/LT1162 are cost effective half-/full-bridge N-channel power MOSFET drivers. The floating driver can drive the topside N-channel power MOSFETs operating off a high voltage (HV) rail of up to 60V. The internal logic prevents the inputs from turning on the power MOSFETs in a half-bridge at the same time. Its unique adaptive protection against shoot-through cur- rents eliminates all matching requirements for the two MOSFETs. This greatly eases the design of high efficiency motor control and switching regulator systems. During low supply or start-up conditions, the undervoltage lockout actively pulls the driver outputs low to prevent the power MOSFETs from being partially turned on. The 0.5V hysteresis allows reliable operation even with slowly vary- ing supplies. The LT1162 is a dual version of the LT1160 and is available in a 24-pin PDIP or in a 24-pin SO Wide package. FEATURES DESCRIPTION s PWM of High Current Inductive Loads s Half-Bridge and Full-Bridge Motor Control s Synchronous Step-Down Switching Regulators s 3-Phase Brushless Motor Drive s High Current Transducer Drivers s Class D Power Amplifiers APPLICATIONS , LTC and LT are registered trademarks of Linear Technology Corporation. TYPICAL APPLICATION + + + SV+ PV+ UV OUT IN TOP IN BOTTOM 14 13 12 11 9 8 1 10 4 2 3 BOOST T GATE DR T GATE FB T SOURCE B GATE DR B GATE FB LT1160 1N4148 HV = 60V MAX CBOOST 1 µF 10 µF 25V 12V PWM 0Hz TO 100kHz 1160 TA01 IRFZ44 IRFZ44 56 1000 µF 100V SGND PGND IN TOP IN BOTTOM T GATE DR B GATE DR L L L L L H L H H L H L H H L L |
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