
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
Bootstrap Supply Max Voltage to 95V
DC
Drives 1000pF Load at 1MHz in Free Air at 50
o
C with
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.
RANGE (
o
C)
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
V
SS
OUT
IN+
HDEL
IN-
LDEL
AHB
BHO
BLO
BLS
V
DD
BHS
V
CC
ALS
ALO
AHS
AHO
File Number
3178.10
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Copyright
Intersil Corporation 1999