LT1160/LT1162 Half-/Full-Bridge N-Channel Power MOSFET Drivers FEATURES DESCRIPTIO Floating Top Driver Switches Up to 60V The LT 1160/LT1162 are cost effective half-/full-bridge Drives Gate of Top N-Channel MOSFET N-channel power MOSFET drivers. The floating driver can above Load HV Supply drive the topside N-channel power MOSFETs operating off 180ns Transition Times Driving 10,000pF a high voltage (HV) rail of up to 60V. Adaptive Nonoverlapping Gate Drives Prevent The internal logic prevents the inputs from turning on the Shoot-Through power MOSFETs in a half-bridge at the same time. Its Top Drive Protection at High Duty Cycles unique adaptive protection against shoot-through cur- TTL/CMOS Input Levels rents eliminates all matching requirements for the two Undervoltage Lockout with Hysteresis MOSFETs. This greatly eases the design of high efficiency Operates at Supply Voltages from 10V to 15V motor control and switching regulator systems. Separate Top and Bottom Drive Pins During low supply or start-up conditions, the undervoltage U lockout actively pulls the driver outputs low to prevent the APPLICATIO S power MOSFETs from being partially turned on. The 0.5V PWM of High Current Inductive Loads hysteresis allows reliable operation even with slowly vary- Half-Bridge and Full-Bridge Motor Control ing supplies. Synchronous Step-Down Switching Regulators The LT1162 is a dual version of the LT1160 and is available 3-Phase Brushless Motor Drive in a 24-pin PDIP or in a 24-pin SO Wide package. High Current Transducer Drivers , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. Class D Power Amplifiers All other trademarks are the property of their respective owners. TYPICAL APPLICATIO 1N4148 HV = 60V MAX + 1000F 1 14 + 100V 12V SV BOOST 10 13 10F + IRFZ44 PV T GATE DR 25V 12 C BOOST T GATE FB 1F 4 11 UV OUT T SOURCE LT1160 2 9 IN TOP IN BOTTOM T GATE DR B GATE DR IRFZ44 IN TOP B GATE DR PWM 3 8 LL L L 0Hz TO 100kHz IN BOTTOM B GATE FB LH L H SGND PGND HL H L 56 HH L L 1160 TA01 11602fb 1 U ULT1160/LT1162 ABSOLUTE MAXIMUM RATINGS (Note 1) Supply Voltage (Note 2) ......................................... 20V Operating Temperature Range Boost Voltage ......................................................... 75V Commercial .......................................... 0C to 70C Peak Output Currents (< 10s) .............................. 1.5A Industrial ......................................... 40C to 85C + Input Pin Voltages .......................... 0.3V to V + 0.3V Junction Temperature (Note 3)............................ 125C Top Source Voltage ..................................... 5V to 60V Storage Temperature Range ................ 65C to 150C Boost to Source Voltage ........................... 0.3V to 20V Lead Temperature (Soldering, 10 sec)................. 300C PACKAGE/ORDER INFORMATION TOP VIEW ORDER PART ORDER PART TOP VIEW + NUMBER NUMBER SV A 1 24 BOOST A + SV 1 14 BOOST IN TOP A 2 23 T GATE DR A IN BOTTOM A 3 22 T GATE FB A IN TOP 2 13 T GATE DR LT1160CN LT1162CSW UV OUT A 4 21 T SOURCE A IN BOTTOM 3 T GATE FB 12 + LT1160CS LT1162ISW GND A 5 20 PV A UV OUT 4 11 T SOURCE LT1160IN B GATE FB A 6 19 B GATE DR A + SGND 5 10 PV + SV B 7 18 BOOST B LT1160IS PGND 6 9 B GATE DR IN TOP B 8 17 T GATE DR B NC 7 8 B GATE FB IN BOTTOM B 9 16 T GATE FB B OBSOLETE UV OUT B 10 15 T SOURCE B N PACKAGE + PART NUMBERS GND B 11 14 PV B 14-LEAD PDIP B GATE FB B B GATE DR B 12 13 S PACKAGE LT1162CN 14-LEAD PLASTIC SO N PACKAGE SW PACKAGE LT1162IN 24-LEAD PDIP 24-LEAD PLASTIC SO WIDE T = 125C, = 70C/ W (N) JMAX JA T = 125C, = 110C/ W (S) JMAX JA T = 125C, = 58C/ W (N) JMAX JA T = 125C, = 80C/ W (SW) JMAX JA Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS The denotes the specifications which apply over the full operating + temperature range, otherwise specifications are at T = 25C. Test Circuit, T = 25C, V = V = 12V, V = 0V, C = A A BOOST TSOURCE GATE 3000pF. Gate Feedback pins connected to Gate Drive pins, unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS + I DC Supply Current (Note 4) V = 15V, V = 0.8V, V = 2V 7 11 15 mA S INTOP INBOTTOM + V = 15V, V = 2V, V = 0.8V 7 10 15 mA INTOP INBOTTOM + V = 15V, V = 0.8V, V = 0.8V 7 11 15 mA INTOP INBOTTOM + I Boost Current (Note 4) V = 15V, V = 60V, V = 75V, 3 4.5 6 mA BOOST TSOURCE BOOST V = V = 0.8V INTOP INBOTTOM V Input Logic Low 1.4 0.8 V IL V Input Logic High 2 1.7 V IH I Input Current V = V = 4V 725 A IN INTOP INBOTTOM + + V V Undervoltage Start-Up Threshold 8.4 8.9 9.7 V UVH + + V V Undervoltage Shutdown Threshold 7.8 8.3 8.8 V UVL V V Undervoltage Start-Up Threshold V = 60V (V V ) 8.8 9.3 9.8 V BUVH BOOST TSOURCE BOOST TSOURCE V V Undervoltage Shutdown Threshold V = 60V (V V ) 8.2 8.7 9.2 V BUVL BOOST TSOURCE BOOST TSOURCE 11602fb 2 U W U U WWW