1

100V, 2A Peak, High Frequency Half-Bridge Drivers with

Rising Edge Delay Timer

HIP2122, HIP2123

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

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.

inputs with hysteresis for superior operation in noisy

environments.

The HIP2122 has hysteretic inputs with thresholds that are

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.

Features

• 9 Ld TDFN “B” Package Compliant with 100V Conductor

Spacing Guidelines per IPC-2221

• Break-Before-Make Dead-Time Prevents Shoot-through and 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)

•1.6

Ω/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

Related Literature

• FN7668, HIP2120, HIP2121 “100V, 2A Peak, High Frequency

Half-Bridge Drivers with Adjustable Dead Time Control and

PWM Input”

FIGURE 1. TYPICAL APPLICATION

FIGURE 2. DEAD-TIME vs TIMING RESISTOR

VDD

HB

HO

HS

LO

VSS

HI

LI

100V MAX

RDT

FEEDBACK

WITH

ISOLATION

PWM

CONTROLLER

SECONDARY

CIRCUITS

HIP2122, HIP2123

EPAD

HALF

BRIDGE

200

160

140

120

100

80

60

40

20

RDT (kΩ)

816

24

32

40 48 56 64 80

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

December 23, 2011

FN7670.0