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100V, 3A/4A Peak, High Frequency Half-Bridge Drivers

The ISL2110, ISL2111 are 100V, high frequency, half-bridge N-Channel power MOSFET driver ICs. They are based on the popular HIP2100, HIP2101 half-bridge drivers, but offer several performance improvements. Peak output pull-up/pull-down current has been increased to 3A/4A, which significantly reduces switching power losses and eliminates the need for external totem-pole buffers in many applications. Also, the low end of the VDD operational supply range has been extended to 8VDC. The ISL2110 has additional input hysteresis for superior operation in noisy environments and the inputs of the ISL2111, like those of the ISL2110, can now safely swing to the VDD supply rail.

Features

? Drives N-Channel MOSFET half-bridge

? SOIC, DFN, and TDFN package options

? SOIC, DFN, and TDFN packages compliant with 100V conductor spacing guidelines per IPC-2221

? Pb-free (RoHS compliant)

? Bootstrap supply max voltage to 114VDC

? On-chip 1W bootstrap diode

? Fast propagation times for multi-MHz circuits

? Drives 1nF load with typical rise/fall times of 9ns/7.5ns

? CMOS compatible input thresholds (ISL2110)

? 3.3V/TTL compatible input thresholds (ISL2111)

? Independent inputs provide flexibility

? No start-up problems

? Outputs unaffected by supply glitches, HS ringing below ground or HS slewing at high dv/dt

? Low power consumption

? Wide supply voltage range (8V to 14V)

? Supply undervoltage protection

? 1.6W/1W typical output pull-up/pull-down resistance

Applications

? Telecom half-bridge DC/DC converters

? Telecom full-bridge DC/DC converters

? Two-switch forward converters

? Active-clamp forward converters

? Class-D audio amplifiers