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The HIP2122 and HIP2123 are 100V, high frequency, half-bridge MOSFET driver ICs. They are based on the popular ISL2100A and ISL2101A half-bridge drivers. Like the ISL2100A, two logic inputs, LI and HI, control both bridge outputs, LO and HO. All logic inputs are V_DD tolerant.

These drivers have a programmable dead-time to insure break-before-make operation between the high-side and low-side drivers. The dead-time is adjustable up to 220ns. The internal logic does not prevent both outputs from turning on simultaneously if both inputs are high simultaneously for a time greater than the programmed delay.

A single PWM logic input controls both bridge outputs (HO, LO). An enable pin (EN), when low, drives both outputs to a low state. All logic inputs are V_DD tolerant and the HIP2122 has CMOS inputs with hysteresis for superior operation in noisy environments.

The HIP2122 has hysteretic inputs with thresholds that are proportional to V_DD. The HIP2123 has 3.3V logic/TTL compatible inputs.

Two package options are provided. The 10 lead 4x4 DFN package has standard pinouts. The 9 lead 4x4 DFN package omits pin 2 to comply with 100V conductor spacing
per IPC-2221.

Key Features

• 9 Ld TDFN B Package Compliant with 100VConductor Spacing Guidelines per IPC-2221
• Break-Before-Make Dead-Time Prevents Shoot-throughand is adjustable up to 220ns
• Bootstrap Supply Max Voltage to 114VDC
• Wide Supply Voltage Range (8V to 14V)
• Supply Undervoltage Protection
• CMOS Compatible Input Thresholds with Hysteresis (HIP2122)
• 1.6Ω/1Ω Typical Output Pull-up/Pull-down Resistance
• On-Chip 1Ω Bootstrap Diode

Applications

• Telecom Half-Bridge DC/DC Converters
• UPS and Inverters
• Motor Drives
• Class-D Amplifiers
• Forward Converter with Active Clamp