1

December 1996

HIP4080

80V/2.5A Peak, High Frequency

Full Bridge FET Driver

Features

• Drives N-Channel FET Full Bridge Including High Side

Chop Capability

Rise and Fall Times of 10ns (Typ)

• User-Programmable Dead Time

• Charge-Pump and Bootstrap Maintain Upper Bias

Supplies

• DIS (Disable) Pin Pulls Gates Low

• Input Logic Thresholds Compatible with 5V to 15V

Logic Levels

• Very Low Power Consumption

Applications

• Medium/Large Voice Coil Motors

• Full Bridge Power Supplies

• Class D Audio Power Amplifiers

• High Performance Motor Controls

• Noise Cancellation Systems

• Battery Powered Vehicles

• Peripherals

• U.P.S.

Description

The HIP4080 is a high frequency, medium voltage Full Bridge

N-Channel FET driver IC, available in 20 lead plastic SOIC and

DIP packages. The HIP4080 includes an input comparator,

used to facilitate the “hysteresis” and PWM modes of operation.

Its HEN (high enable) lead can force current to freewheel in the

bottom two external power MOSFETs, maintaining the upper

power MOSFETs off. Since it can switch at frequencies up to

1MHz, the HIP4080 is well suited for driving Voice Coil Motors,

switching amplifiers in class D high-frequency switching audio

amplifiers and power supplies.

HIP4080 can also drive medium voltage brush motors, and

two HIP4080s can be used to drive high performance step-

per motors, since the short minimum “on-time” can provide

fine micro-stepping capability.

Short propagation delays of approximately 55ns maximizes

control loop crossover frequencies and dead-times which

can be adjusted to near zero to minimize distortion, resulting

in precise control of the driven load.

The similar HIP4081 IC allows independent control of all 4

FETs in an Full Bridge configuration.

See also, Application Note AN9324 for the HIP4080.

Similar part, HIP4080A, includes under voltage circuitry

which doesn’t require the circuitry shown in Figure 30 of this

data sheet.

Pinout

HIP4080 (PDIP, SOIC)

TOP VIEW

Ordering Information

PART

NUMBER

TEMP.

PACKAGE

PKG.

NO.

HIP4080IP

-40 to 85

20 Lead PDIP

E20.3

HIP4080IB

-40 to 85

20 Lead SOIC

M20.3

11

12

13

14

15

16

17

18

20

19

10

9

8

7

6

5

4

3

2

1

BHB

HEN

DIS

OUT

IN+

HDEL

IN-

LDEL

AHB

BHO

BLO

BLS

BHS

ALS

ALO

AHS

AHO

File Number

3178.10

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

http://www.intersil.com or 407-727-9207