LM5102 Datasheet | National Semiconductor

LM5102 High Voltage Half-Bridge Gate Driver with Programmable Delay January 2004 LM5102 High Voltage Half-Bridge Gate Driver with Programmable Delay General Description The LM5102 High Voltage Gate Driver is 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 working with supply voltages up to 100V. The outputs are independently controlled. The rising edge of each output can be independently delayed with a programming resistor. An integrated high voltage diode is provided to charge the high side gate drive bootstrap capacitor. A robust level shifter operates at high speed while consuming low power and providing clean level transitions from control logic to the high side gate driver. Under-voltage lockout is provided on both the low side and the high side power rails. This device is available in the standard MSOP-10 pin and the LLP-10 pin packages. n n n n n n Bootstrap supply voltage range up to 118V DC Fast turn-off propagation delay (25 ns typical) Drives 1000 p F loads with 15 ns rise and fall times Supply rail under-voltage lockout Low power consumption Timer can be terminated midway through sequence Typical Applications n n n n n Current Fed push-pull power converters Half and Full Bridge power converters Synchronous Buck converters Two switch forward power converters Forward with Active Clamp converters Features n Drives both a high side and low side N-channel MOSFET n Independently programmable high and low side rising edge delay Package n MSOP-10 n LLP-10 (4 mm x 4 mm) Simplified Block Diagram FIGURE 1. © 2004 National Semiconductor Corporation DS200889 .national. Connection Diagram 10-Lead MSOP, LLP See NS Numbers MUB10A and SDC10A FIGURE 2. Ordering Information Ordering Number LM5102MM LM5102MMX LM5102SD LM5102SDX Package Type MSOP-10 MSOP-10 LLP-10 LLP-10 NSC Package Drawing MUB10A MUB10A...