• 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 50oC 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
Description
The HIP4080 is a high frequency, medium voltage Full Bridge
N-Channel FET driver IC, av ailable 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 stepper 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.
• Battery Powered Vehicles
• Peripherals
• U.P.S.
Pinout
HIP4080 (PDIP, SOIC)
TOP VIEW
1
BHB
HEN
2
DIS
3
V
4
SS
OUT
5
IN+
6
IN-
7
HDEL
8
LDEL
9
AHB
10
Ordering Information
PART
NUMBER
HIP4080IP-40 to 8520 Lead PDIPE20.3
HIP4080IB-40 to 8520 Lead SOICM20.3
20
19
18
17
16
15
14
13
12
11
TEMP.
RANGE (oC)PACKAGE
BHO
BHS
BLO
BLS
V
DD
V
CC
ALS
ALO
AHS
AHO
PKG.
NO.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
NOTE: All V oltages relativ e to pin 4, VSS, unless otherwise specified.
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1. θJA is measured with the component mounted on an evaluation PC board in free air.
(DIS - Upper Outputs)
Disable to Lower Turn-on Propagation Delay
T
DLPLH
-3570-90ns
(DIS - ALO and BLO)
Refresh Pulse Width (ALO and BLO)T
Disable to Upper Enable (DIS - AHO and BHO)T
HEN-AHO, BHO Turn-off, Propagation DelayT
HEN-AHO, BHO Turn-on, Propagation DelayT
HEN-PHLRHDEL
HEN-PLHRHDEL
REF-PW
UEN
= R
= R
= 10K-3570-90ns
LDEL
= 10K-6090-110ns
LDEL
160260380140420ns
-335500-550ns
TRUTH TABLE
INPUTOUTPUT
IN+ > IN-HENDISALOAHOBLOBHO
X X10000
1 100110
0 101001
1 000010
0 001000
5
HIP4080
Pin Descriptions
PIN
NUMBERSYMBOLDESCRIPTION
1BHBB High-side Bootstrap supply. External bootstrap diode and capacitor are required. Connect cathode of boot-
strap diode and positive side of bootstrap capacitor to this pin. Internal charge pump supplies 30µA out of this
pin to maintain bootstrap supply. Internal circuitry clamps the bootstrap supply to approximately 12.8V.
2HENHigh-side Enable input. Logic level input that when low overrides IN+/IN- (Pins 6 and 7) to put AHO and BHO
drivers (Pins 11 and 20) in low output state. When HEN is high AHO and BHO are controlled by IN+/IN- inputs.
The pin can be driven by signal levels of 0V to 15V (no g reater than VDD). An internal 100µA pull-up to VDD will
hold HEN high, so no connection is required if high-side and low-side outputs are to be controlled by IN+/INinputs.
3DISDISable input. Logic level input that when taken high sets all four outputs low . DIS high ov errides all other inputs.
When DIS is taken low the outputs are controlled by the other inputs. The pin can be driven by signal levels of
0V to 15V (no greater than VDD). An internal 100µA pull-up to VDD will hold DIS high if this pin is not driven.
4VSSChip negative supply, generally will be ground.
5OUTOUTput of the input control comparator. This output can be used for feedback and hysteresis.
6IN+Non-inverting input of control comparator. If IN+ is greater than IN- (Pin 7) then ALO and BHO are low level
outputs and BLO and AHO are high level outputs. If IN+ is less than IN- then ALO and BHO are high level outputs and BLO and AHO are low level outputs. DIS (Pin 3) high level will override IN+/IN- control for all outputs.
HEN (Pin 2) low level will override IN+/IN- control of AHO and BHO. When switching in four quadrant mode,
dead time in a half bridge leg is controlled by HDEL and LDEL (Pins 8 and 9).
7IN-Inverting input of control comparator. See IN+ (Pin 6) description.
8HDELHigh-side turn-on DELay . Connect resistor from this pin to VSS to set timing current that defines the turn-on delay
of both high-side drivers. The low-side drivers turn-off with no adjustable delay, so the HDEL resistor guarantees
no shoot-through by delaying the turn-on of the high-side drivers. HDEL ref erence voltage is approximately 5.1V.
9LDELLow-side turn-on DELay . Connect resistor from this pin to VSS to set timing current that defines the turn-on delay
of both low-side drivers. The high-side drivers turn-off with no adjustable delay, so the LDEL resistor guarantees
no shoot-through by delaying the turn-on of the low-side drivers. LDEL ref erence v oltage is appro ximately 5.1V.
10AHBA High-side Bootstrap supply. External bootstrap diode and capacitor are required. Connect cathode of boot-
strap diode and positive side of bootstrap capacitor to this pin. Internal charge pump supplies 30µA out of this
pin to maintain bootstrap supply. Internal circuitry clamps the bootstrap supply to approximately 12.8V.
11AHOA High-side Output. Connect to gate of A High-side power MOSFET.
12AHSA High-side Source connection. Connect to source of A High-side power MOSFET. Connect negative side of
bootstrap capacitor to this pin.
13ALOA Low-side Output. Connect to gate of A Low-side power MOSFET.
14ALSA Low-side Source connection. Connect to source of A Low-side power MOSFET.
15V
16V
17BLSB Low-side Source connection. Connect to source of B Low-side power MOSFET.
CC
DD
Positive supply to gate drivers. Must be same potential as VDD (Pin 16). Connect to anodes of two bootstrap
diodes.
Positive supply to lo wer gate drivers. Must be same potential as VCC (Pin 15). De-couple this pin to VSS (Pin 4).
18BLOB Low-side Output. Connect to gate of B Low-side power MOSFET.
19BHSB High-side Source connection. Connect to source of B High-side power MOSFET. Connect negative side of
bootstrap capacitor to this pin.
20BHOB High-side Output. Connect to gate of B High-side power MOSFET.
6
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