LM5100C

www.DataSheet4U.com LM5100A/B/C, LM5101A/B/C 3A, 2A and 1A High Voltage High-Side and Low-Side Gate Drivers November 2006 LM5100A/B/C LM5101A/B/C 3A, 2A and 1A High Voltage High-Side and Low-Side Gate Drivers General Description The LM5100A/B/C and LM5101A/B/C High Voltage Gate Drivers are designed to drive both the high-side and the low-side N-Channel MOSFETs in a synchronous buck or a half-bridge configuration. The floating high-side driver is capable of operating with supply voltages up to 100V. The “A” versions provide a full 3A of gate drive while the “B” and “C” versions provide 2A and 1A respectively. The outputs are independently controlled with CMOS input thresholds (LM5100A/B/C) or TTL input thresholds (LM5101A/B/C). An integrated high voltage diode is provided to charge the highside gate drive bootstrap capacitor. A robust level shifter operates at high speed while consuming low power and providing clean level transitions from the control logic to the high-side gate driver. Under-voltage lockout is provided on both the low-side and the high-side power rails. These devices are available in the standard SOIC - 8 pin and the LLP - 10 pin packages. Features n Drives both a high-side and low-side N-Channel MOSFETs n Independent high and low driver logic inputs n Bootstrap supply voltage up to 118V DC n Fast propagation times (25 ns typical) n Drives 1000 pF load with 8 ns rise and fall times n Excellent propagation delay matching (3 ns typical) n Supply rail under-v...