HIP4080
80V/2.5A Peak, High Frequency
Full Bridge FET Driver
December 1996
Features
Description
• Drives N-Channel FET Full Bridge Including High Side 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.
Chop Capability
• Bootstrap Supply Max Voltage to 95V
DC
o
• Drives 1000pF Load at 1MHz in Free Air at 50 C with
Rise and Fall Times of 10ns (Typ)
• User-Programmable Dead Time
• Charge-Pump and Bootstrap Maintain Upper Bias
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.
• DIS (Disable) Pin Pulls Gates Low
• Input Logic Thresholds Compatible with 5V to 15V
Logic Levels
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.
• 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
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.
Ordering Information
PART
NUMBER
TEMP.
RANGE ( C)
PKG.
NO.
o
PACKAGE
20 Lead PDIP
20 Lead SOIC
• U.P.S.
HIP4080IP
HIP4080IB
-40 to 85
E20.3
M20.3
-40 to 85
Pinout
HIP4080 (PDIP, SOIC)
TOP VIEW
1
2
20
19
BHO
BHS
BHB
HEN
DIS
3
18 BLO
V
BLS
4
17
16
15
14
13
12
11
SS
OUT
IN+
V
5
DD
V
6
CC
IN-
ALS
ALO
7
HDEL
LDEL
AHB
8
AHS
AHO
9
10
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
File Number 3178.10
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