1

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

Adjustable Dead Time Control and PWM Input

HIP2120, HIP2121

The HIP2120 and HIP2121 are 100V, high frequency, half-bridge

MOSFET driver ICs. They are based on the popular ISL2100A and

ISL2101A half-bridge drivers.

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 250ns.

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

with hysteresis for superior operation in noisy environments.

The HIP2120 has hysteretic inputs with thresholds that are

inputs.

Two package options are provided. The 10 Ld 4x4 DFN package has

standard pinouts. The 9 Ld 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 (HIP2120)

•1.6

Ω/1Ω Typical Output Pull-up/Pull-down Resistance

•On-Chip 1

Ω Bootstrap Diode

Applications

• Telecom Half-Bridge DC/DC Converters

•UPS and Inverters

•Motor Drives

• Class-D Amplifiers

• Forward Converter with Active Clamp

Related Literature

• FN7670 “HIP2122, HIP2123 100V, 2A Peak, High Frequency

Half-Bridge Driver with Delay Timers”

FIGURE 1. TYPICAL APPLICATION

FIGURE 2. DEAD-TIME vs TIMING RESISTOR

VDD

HB

HO

HS

LO

VSS

PWM

EN

100V max

RDT

FEEDBACK

WITH

ISOLATION

PWM

CONTROLLER

SECONDARY

CIRCUITS

HIP2120/21

EPAD

HALF BRIDGE

816

24

32

48 56

40

64

80

200

160

140

120

100

80

60

40

20

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

FN7668.0