February, 2003

HIP4081

80V/2.5A Peak, High Frequency

Full Bridge FET Driver

The HIP4081 is a high frequency, medium voltage Full
Bridge N-Channel FET driver IC, available in 20 lead plastic
SOIC and DIP packages. The HIP4081 can drive every
possible switch combination except those which would
cause a shoot-through condition. The HIP4081 can switch at
frequencies up to 1MHz and is well suited to driving Voice
Coil Motors, high-frequency switching power amplifiers, and
power supplies.

For example, the HIP4081 can drive medium voltage brush
motors, and two HIP4081s 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 rapid, precise control of the driven load.

A similar part, the HIP4080, includes an on-chip input
comparator to create a PWM signal from an external triangle
wave and to facilitate "hysteresis mode" switching.

See Application Note AN9325 for HIP4081, document
#9325. Intersil web home page: http://www.intersil.com

Similar part HIP4081A includes undervoltage circuitry which
does not require the circuitry shown in Figure 30 of this data
sheet.

Pinout

Features

· Independently Drives 4 N-Channel FET in Half Bridge or

Full Bridge Configurations

· Bootstrap Supply Max Voltage to 95V

· Drives 1000pF Load at 1MHz in Free Air at 50

C with Rise

and Fall Times of Typically 10ns

· User-Programmable Dead Time

· On-Chip Charge-Pump and Bootstrap Upper Bias

Supplies

· DIS (Disable) Overrides Input Control

· Input Logic Thresholds Compatible with 5V to 15V Logic

Levels

· Very Low Power Consumption

Applications

· Medium/Large Voice Coil Motors

· Full Bridge Power Supplies

· Switching Power Amplifiers

· High Performance Motor Controls

· Noise Cancellation Systems

· Battery Powered Vehicles

· Peripherals

· U.P.S.

BHB

BHI

DIS

BLI

ALI

HDEL

AHI

LDEL

AHB

BHO

BLO

BLS

BHS

ALS

ALO

AHS

AHO

HIP4081

(20-LEAD PDIP, SOIC)

TOP VIEW

Ordering Information

PART

NUMBER

TEMP. RANGE

(

PACKAGE

PKG. NO.

HIP4081IP

-40 to 85

20 Lead Plastic DIP

E20.3

HIP4081IB

-40 to 85

20 Lead Plastic SOIC

M20.3

Data Sheet

FN3556.9

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

1-888-INTERSIL or 321-724-7143

Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

NOT

RECO

MME

NDED

FOR

NEW

DES

IGNS

POSS

IBLE

SUB

STITU

TE P

ROD

UCT

INTE

RSIL

PAR

T NU

MBE

R HIP

4081

Absolute Maximum Ratings

Thermal Information

(Typical, Note 1)

Supply Voltage, V

and V

. . . . . . . . . . . . . . . . . . . .-0.3V to 16V

Logic I/O Voltages . . . . . . . . . . . . . . . . . . . . . . . -0.3V to V

+0.3V

Voltage on AHS, BHS . . . -6.0V (Transient) to 80V (25

C to 125

Voltage on AHS, BHS . . -6.0V (Transient) to 70V (-55

C to 125

Voltage on ALS, BLS . . . . . . . -2.0V (Transient) to +2.0V (Transient)
Voltage on AHB, BHB . . . . . . V

AHS, BHS

-0.3V to V

AHS, BHS

+16V

Voltage on ALO, BLO. . . . . . . . . . . . V

ALS, BLS

-0.3V to V

+0.3V

Voltage on AHO, BHO . . . . . .V

AHS, BHS

-0.3V to V

AHB, BHB

+0.3V

Input Current, HDEL and LDEL . . . . . . . . . . . . . . . . . . -5mA to 0mA
Phase Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V/ns

All voltages are relative to pin 4, V

, unless otherwise specified.

Storage Temperature Range . . . . . . . . . . . . . . . . . . -65

C to 150

Operating Max. Junction Temperature . . . . . . . . . . . . . . . . . . 125

Lead Temperature (Soldering 10s) . . . . . . . . . . . . . . . . . . . . . 300

(For SOIC - Lead Tips Only)

Thermal Resistance, Junction-Ambient

SOIC Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

C/W

DIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

C/W

Operating Conditions

Supply Voltage, V

and V

. . . . . . . . . . . . . . . . . . . .+6V to +15V

Voltage on ALS, BLS . . . . . . . . . . . . . . . . . . . . . . . . . -1.0V to +1.0V
Voltage on AHB, BHB . . . . . . . V

AHS, BHS

+5V to V

AHS, BHS

+15V

Input Current, HDEL and LDEL . . . . . . . . . . . . . . . .-500

A to -50

Operating Ambient Temperature Range . . . . . . . . . . -40

C to 85

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:

is measured with the component mounted on an evaluation PC board in free air.

Electrical Specifications

= V

AHB

= V

BHB

= 12V, V

= V

ALS

= V

BLS

= V

AHS

= V

BHS

= 0V, R

HDEL

= R

LDEL

= 100K and

= 25

C, Unless Otherwise Specified

PARAMETER

SYMBOL

TEST CONDITIONS

= 25

= -40

TO 125

UNITS

MIN

TYP MAX MIN MAX

SUPPLY CURRENTS AND CHARGE PUMPS

Quiescent Current

All Inputs = 0V

Operating Current

DDO

Outputs Switching f = 500kHz

9.5

Quiescent Current

All Inputs = 0V, I

ALO

= I

BLO

= 0

0.1

Operating Current

CCO

f = 500kHz, No Load

1.25

2.0

0.8

AHB, BHB Quiescent Current -
Qpump Output Current

AHB

, I

BHB

All Inputs = 0V, I

AHO

= I

BHO

= 0

= V

AHB

= V

BHB

= 10V

-50

-30

-15

-60

-10

AHB, BHB Operating Current

AHBO

, I

BHBO

f = 500kHz, No Load

0.5

0.9

1.3

0.4

1.7

AHS, BHS, AHB, BHB Leakage Current

HLK

AHS

= V

BHS

= V

AHB

= V

BHB

= 95V

0.02

1.0

AHB-AHS, BHB-BHS Qpump
Output Voltage

AHB

-V

AHS

BHB

-V

BHS

AHB

= I

AHB

= 0, No Load

11.5

12.6

14.0

10.5

14.5

INPUT PINS: ALI, BLI, AHI, BHI, AND DIS

Low Level Input Voltage

Full Operating Conditions

1.0

0.8

High Level Input Voltage

Full Operating Conditions

2.5

2.7

Input Voltage Hysteresis

Low Level Input Current

= 0V, Full Operating Conditions

-130 -100

-75

-135

-65

High Level Input Current

= 5V, Full Operating Conditions

-1

-10

+10

TURN-ON DELAY PINS: LDEL AND HDEL

LDEL, HDEL Voltage

HDEL,

LDEL

HDEL

= I

LDEL

= -100

4.9

5.1

5.3

4.8

5.4

GATE DRIVER OUTPUT PINS: ALO, BLO, AHO, AND BHO

Low Level Output Voltage

OUT

= 100mA

0.7

0.85

1.0

0.5

1.1

High Level Output Voltage

-V

OUT

= -100mA

0.8

.95

1.1

0.5

1.2

HIP4081

Peak Pullup Current

OUT

= 0V

1.7

2.6

3.8

1.4

4.1

Peak Pulldown Current

OUT

= 12V

1.7

2.4

3.3

1.3

3.6

Electrical Specifications

= V

AHB

= V

BHB

= 12V, V

= V

ALS

= V

BLS

= V

AHS

= V

BHS

= 0V, R

HDEL

= R

LDEL

= 100K and

= 25

C, Unless Otherwise Specified (Continued)

PARAMETER

SYMBOL

TEST CONDITIONS

= 25

= -40

TO 125

UNITS

MIN

TYP MAX MIN MAX

Switching Specifications

= V

AHB

= V

BHB

= 12V, V

= V

ALS

= V

BLS

= V

AHS

= V

BHS

= 0V, R

HDEL

= R

LDEL

= 10K,

= 1000pF

PARAMETER

SYMBOL

TEST CONDITIONS

= +25

= 40

TO 125

UNITS

MIN

TYP

MAX

MIN

MAX

Lower Turn-off Propagation Delay
(ALI-ALO, BLI-BLO)

LPHL

Upper Turn-off Propagation Delay
(AHI-AHO, BHI-BHO)

HPHL

Lower Turn-on Propagation Delay
(ALI-ALO, BLI-BLO)

LPLH

Upper Turn-on Propagation Delay
(AHI-AHO, BHI-BHO)

HPLH

110

Rise Time

Fall Time

Turn-on Input Pulse Width

PWIN-ON

Turn-off Input Pulse Width

PWIN-OFF

Disable Turn-off Propagation Delay
(DIS - Lower Outputs)

DISLOW

Disable Turn-off Propagation Delay
(DIS - Upper Outputs)

DISHIGH

105

Disable to Lower Turn-on Propagation Delay
(DIS - ALO and BLO)

DLPLH

Refresh Pulse Width (ALO and BLO)

REF-PW

160

260

380

140

420

Disable to Upper Enable (DIS - AHO and BHO)

HEN

335

500

550

TRUTH TABLE

INPUT

OUTPUT

ALI, BLI

AHI, BHI

DIS

ALO, BLO

AHO, BHO

NOTE: X signifies that input can be either a "1" or "0".

HIP4081

Pin Descriptions

PIN

NUMBER

SYMBOL

DESCRIPTION

BHB

B High-side Bootstrap supply. External bootstrap diode and capacitor are required. Connect cathode of bootstrap
diode and positive side of bootstrap capacitor to this pin. Internal charge pump supplies 30

A out of this pin to maintain

bootstrap supply. Internal circuitry clamps the bootstrap supply to approximately 12.8V.

BHI

B High-side Input. Logic level input that controls BHO driver (Pin 20). BLI (Pin 5) high level input overrides BHI high
level input to prevent half-bridge shoot-through, see Truth Table. DIS (Pin 3) high level input overrides BHI high level
input. The pin can be driven by signal levels of 0V to 15V (no greater than V

DIS

Disable input. Logic level input that when taken high sets all four outputs low. DIS high overrides 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 V

Chip negative supply, generally will be ground.

BLI

B Low-side Input. Logic level input that controls BLO driver (Pin 18). If BHI (Pin 2) is driven high or not connected
externally then BLI controls both BLO and BHO drivers, with dead time set by delay currents at HDEL and LDEL (Pin
8 and 9). DIS (Pin 3) high level input overrides BLI high level input. The pin can be driven by signal levels of 0V to 15V
(no greater than V

ALI

A Low-side Input. Logic level input that controls ALO driver (Pin 13). If AHI (Pin 7) is driven high or not connected
externally then ALI controls both ALO and AHO drivers, with dead time set by delay currents at HDEL and LDEL (Pin
8 and 9). DIS (Pin 3) high level input overrides ALI high level input. The pin can be driven by signal levels of 0V to 15V
(no greater than V

AHI

A High-side Input. Logic level input that controls AHO driver (Pin 11). ALI (Pin 6) high level input overrides AHI high
level input to prevent half-bridge shoot-through, see Truth Table. DIS (Pin 3) high level input overrides AHI high level
input. The pin can be driven by signal levels of 0V to 15V (no greater than V

HDEL

High-side turn-on DELay. Connect resistor from this pin to V

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 reference voltage is approximately 5.1V.

LDEL

Low-side turn-on DELay. Connect resistor from this pin to V

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 reference voltage is approximately 5.1V.

AHB

A High-side Bootstrap supply. External bootstrap diode and capacitor are required. Connect cathode of bootstrap
diode and positive side of bootstrap capacitor to this pin. Internal charge pump supplies 30

A out of this pin to maintain

bootstrap supply. Internal circuitry clamps the bootstrap supply to approximately 12.8V.

AHO

A High-side Output. Connect to gate of A High-side power MOSFET.

AHS

A High-side Source connection. Connect to source of A High-side power MOSFET. Connect negative side of bootstrap
capacitor to this pin.

ALO

A Low-side Output. Connect to gate of A Low-side power MOSFET.

ALS

A Low-side Source connection. Connect to source of A Low-side power MOSFET.

Positive supply to gate drivers. Must be same potential as V

(Pin 16). Connect to anodes of two bootstrap diodes.

Positive supply to lower gate drivers. Must be same potential as V

(Pin 15). De-couple this pin to V

(Pin 4).

BLS

B Low-side Source connection. Connect to source of B Low-side power MOSFET.

BLO

B Low-side Output. Connect to gate of B Low-side power MOSFET.

BHS

B High-side Source connection. Connect to source of B High-side power MOSFET. Connect negative side of bootstrap
capacitor to this pin.

BHO

B High-side Output. Connect to gate of B High-side power MOSFET.

HIP4081

Typical Performance Curves

= V

AHB

= V

BHB

= 12V, V

= V

ALS

= V

BLS

= V

AHS

= V

BHS

= 0V,

HDEL

= R

LDEL

= 100K and T

= 25

C, Unless Otherwise Specified

FIGURE 4. QUIESCENT I

SUPPLY CURRENT vs V

SUPPLY VOLTAGE

FIGURE 5. I

DDO

, NO-LOAD I

SUPPLY CURRENT vs

FREQUENCY (kHz)

FIGURE 6. SIDE A, B FLOATING SUPPLY BIAS CURRENT vs

FREQUENCY (LOAD = 1000pF)

FIGURE 7. I

CCO

, NO-LOAD I

SUPPLY CURRENT vs

FREQUENCY (kHz) TEMPERATURE

FIGURE 8. I

AHB

, I

BHB

NO-LOAD FLOATING SUPPLY

CURRENT vs FREQUENCE

FIGURE 9. ALI, BLI, AHI, BHI LOW LEVEL INPUT CURRENT

vs TEMPERATURE

2.0

4.0

6.0

8.0

10.0

12.0

14.0

SUPPLY

CURRENT (m

SUPPLY VOLTAGE (V)

100 200

300 400

500 600 700 800

900 1000

8.0

8.5

9.0

9.5

10.0

10.5

11.0

PPLY CURRENT

(mA)

SWITCHING FREQUENCY (kHz)

100

200 300

400

500 600 700 800

900 1000

0.0

5.0

10.0

15.0

20.0

25.0

30.0

FLOATIN

G S

PPLY

BIA

CURRENT

SWITCHING FREQUENCY (kHz)

100 200

300

400

500

600

700

800

900 1000

0.0

1.0

2.0

3.0

4.0

5.0

PPLY

CURRENT (mA)

SWITCHING FREQUENCY (kHz)

125

-40

200

400

600

800

1000

-0.2

0.2

0.6

1.0

1.4

1.8

FLOATING SUPPLY BIAS

CURRENT (m

SWITCHING FREQUENCY (kHz)

-50

-25

100

125

-120

-110

-100

-90

LOW

VEL INPUT CUR

(

JUNCTION TEMPERATURE (

HIP4081

FIGURE 10. AHB - AHS, BHB - BHS NO-LOAD CHARGE PUMP

VOLTAGE vs TEMPERATURE

FIGURE 11. UPPER DISABLE TURN-OFF PROPAGATION

DELAY T

DISHIGH

vs TEMPERATURE

FIGURE 12. DISABLE TO UPPER ENABLE T

UEN

PROPAGATION DELAY vs TEMPERATURE

FIGURE 13. DISABLE TO UPPER ENABLE T

UEN

PROPAGATION DELAY vs TEMPERATURE

FIGURE 14. T

REF-PW

REFRESH PULSE WIDTH vs

TEMPERATURE

FIGURE 15. DISABLE TO LOWER ENABLE T

DLPLH

PROPAGATION DELAY vs TEMPERATURE

Typical Performance Curves

= V

AHB

= V

BHB

= 12V, V

= V

ALS

= V

BLS

= V

AHS

= V

BHS

= 0V,

HDEL

= R

LDEL

= 100K and T

= 25

C, Unless Otherwise Specified

(Continued)

-40

-20

100

120

10.0

11.0

12.0

13.0

14.0

15.0

NO-LOAD

FLOATING CHARGE

JUNCTION TEMPERATURE (

LTAGE

(

)

-40

-20

100

120

OPAGA

ION DELAY (ns)

JUNCTION TEMPERATURE (

-40

-20

100

120

300

320

340

360

380

400

OPAGAT

ION DELAY (ns)

JUNCTION TEMPERATURE (

-40

-20

100

120

OPAGA

ION DELAY (ns)

JUNCTION TEMPERATURE (

-40

-20

100

120

175

225

275

325

375

REFRES

H PULS

E WIDTH (

s
)

JUNCTION TEMPERATURE (

-40

-20

100

120

PROPAGATION D

(
n

s
)

JUNCTION TEMPERATURE (

HIP4081

FIGURE 16. UPPER TURN-OFF PROPAGATION DELAY T

HPHL

vs TEMPERATURE

FIGURE 17. UPPER TURN-ON PROPAGATION DELAY T

HPLH

vs TEMPERATURE

FIGURE 18. LOWER TURN-OFF PROPAGATION DELAY

LPHL

vs TEMPERATURE

FIGURE 19. LOWER TURN-ON PROPAGATION DELAY T

LPLH

vs TEMPERATURE

FIGURE 20. GATE DRIVE FALL TIME T

vs TEMPERATURE

FIGURE 21. GATE DRIVE RISE TIME T

vs TEMPERATURE

Typical Performance Curves

= V

AHB

= V

BHB

= 12V, V

= V

ALS

= V

BLS

= V

AHS

= V

BHS

= 0V,

HDEL

= R

LDEL

= 100K and T

= 25

C, Unless Otherwise Specified

(Continued)

-40

-20

100

120

OPAGATION DELAY (ns)

JUNCTION TEMPERATURE (

-40

-20

100

120

PROPAGATION D

LAY

(
n

s
)

JUNCTION TEMPERATURE (

-40

-20

100

120

PROP

AGATION DELAY

(ns)

JUNCTION TEMPERATURE (

-40

-20

100

120

PROP

AGATION DELAY

(ns)

JUNCTION TEMPERATURE (

-40

-20

100

120

8.5

9.5

10.5

11.5

12.5

13.5

TE DRIVE FA

LL TI

ME (ns)

JUNCTION TEMPERATURE (

-40

-20

100

120

8.5

9.5

10.5

11.5

12.5

13.5

TUR

-
O

N RISE

TIME

(ns)

JUNCTION TEMPERATURE (

HIP4081

FIGURE 22. V

LDEL

, V

HDEL

VOLTAGE vs TEMPERATURE

FIGURE 23. HIGH LEVEL OUTPUT VOLTAGE V

- V

BIAS SUPPLY AND TEMPERATURE AT 100mA

FIGURE 24. LOW LEVEL OUTPUT VOLTAGE V

vs BIAS

SUPPLY AND TEMPERTURE AT 100mA

FIGURE 25. PEAK PULLDOWN CURRENT I

vs BIAS SUPPLY

VOLTAGE

FIGURE 26. PEAK PULLUP CURRENT I

O+

vs BIAS SUPPLY

VOLTAGE

FIGURE 27. LOW VOLTAGE BIAS CURRENT I

(LESS

QUIESCENT COMPONENT) vs FREQUENCY AND
GATE LOAD CAPACITANCE

Typical Performance Curves

= V

AHB

= V

BHB

= 12V, V

= V

ALS

= V

BLS

= V

AHS

= V

BHS

= 0V,

HDEL

= R

LDEL

= 100K and T

= 25

C, Unless Otherwise Specified

(Continued)

-40

-20

100

120

4.0

4.5

5.0

5.5

6.0

EL,

LDEL

INPUT VO

LTAG

(V)

JUNCTION TEMPERATURE (

250

500

750

1000

1250

1500

- V

)

BIAS SUPPLY VOLTAGE (V)

125

-40

250

500

750

1000

1250

1500

(mV

)

BIAS SUPPLY VOLTAGE (V)

125

-40

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

GATE DR

IVE

I
NK CU

RRE

(A)

, V

AHB

, V

BHB

(V)

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

GATE DRIV

SIN

CURRENT

(A)

, V

AHB

, V

BHB

(V)

100

1000

500

200

0.1

100

500

0.5

200

0.2

LOW VOLTAGE

BIAS CU

RRE

(mA

)

SWITCHING FREQUENCY (kHz)

100pF

1,000pF

10,000pF

3,000pF

HIP4081

HI4081 Power-up Application Information

The HIP4081 H-Bridge Driver IC requires external circuitry to
assure reliable start-up conditions of the upper drivers. If not
addressed in the application, the H-bridge power MOSFETs
may be exposed to shoot-through current, possibly leading
to MOSFET failure. Following the instructions below will
result in reliable start-up.

The HIP4081 has four inputs, one for each output. Outputs
ALO and BLO are directly controlled by input ALI and BLI.
By holding ALI and BLI low during start-up no shoot-through
conditions can occur. To set the latches to the upper drivers
such that the driver outputs, AHO and BHO, are off, the DIS
pin must be toggled from low to high after power is applied.
This is accomplished with a simple resistor divider, as shown
below in Figure 30. As the V

supply ramps from zero

up, the DIS voltage is below its input threshold of 1.7V due
to the R1/R2 resistor divider. When V

exceeds

approximately 9V to 10V, DIS becomes greater than the
input threshold and the chip disables all outputs. It is critical
that ALI and BLI be held low prior to DIS reaching its
threshold level of 1.7V while V

is ramping up, so

that shoot through is avoided. After power is up the chip can
be enabled by the ENABLE signal which pulls the DIS pin
low.

FIGURE 28. HIGH VOLTAGE LEVEL-SHIFT CURRENT vs

FREQUENCY AND BUS VOLTAGE

FIGURE 29. MINIMUM DEAD-TIME vs DEL RESISTANCE

Typical Performance Curves

= V

AHB

= V

BHB

= 12V, V

= V

ALS

= V

BLS

= V

AHS

= V

BHS

= 0V,

HDEL

= R

LDEL

= 100K and T

= 25

C, Unless Otherwise Specified

(Continued)

100

1000

200

500

100

1000

200

500

LEVEL-S

HIFT C

URRE

(

SWITCHING FREQUENCY (kHz)

60V

40V

80V

20V

100

150

200

250

120

150

HDEL/LDEL RESISTANCE (k

)

DEAD-TIME

(ns

)

1 BHB

BHI

DIS

BLI

ALI

HDEL

AHI

LDEL

AHB

BHO

BLO

BLS

BHS

ALS

ALO

AHS

AHO

3.3K

ENABLE

15K

FIGURE 30A.

DIS

ALI, BLI

8.5V TO 10.5V (ASSUMES 5% RESISTORS)

1.7V

12V, FINAL VALUE

NOTES:

2. ALI and/or BLI may be high after t1, whereupon the ENABLE pin

may also be brought high.

3. Another product, HIP4081A, incorporates undervoltage circuitry

which eliminates the need for the above power up circuitry.

FIGURE 30B. TIMING DIAGRAM FOR FIGURE 30A

HIP4081

HIP40

8
1

1
2
3
4
5
6
7
8
9

R21

R22

R23

JMPR1

R24

R30

R31

R34

CR2

CR1

JMP

JMPR3

JMPR2

JMPR4

R33

B+

IN2 IN1

OUT/BLI

IN-/AHI

COM

IN+/ALI

+12V

BLS

HEN/BHI

ALS

CD4069UB

HIP4080/81

SECTION

CONTROL LOGIC

POWER SECTION

DRIVER SECTION

R29

R32

CD4069UB

TO DIS PIN

15K

3.3K

ENABLE IN

AHO

AHB

AHS

LDEL

ALO

HDEL

ALS

IN-/AHI

IN+/ALI

OUT/BLI

BLS

BLO

DIS

BHS

HEN/BHI

BHO

BHB

NOTES:

4. Device CD4069UB PIN 7 = COM, Pin 14 = +12V.
5. Components L1, L2, C1, C2, CX, CY, R30, R31, not supplied. refer to Application Note for description of input logic operation to determine

jumper locations for JMPR1 - JMPR4.

FIGURE 31. HIP4081 EVALUATION BOARD SCHEMATIC

HIP40

8
1

Supplemental Information for HIP4080
and HIP4081 Power Application

The HIP4080 and HIP4081 H-Bridge Driver ICs require
external circuitry to assure reliable start-up conditions of the
upper drivers. If not addressed in the application, the
H-bridge power MOSFETs may be exposed to shoot-
through current, possibly leading to MOSFET failure.
Following the instructions below will result in reliable start-
up.

HIP4081
The HIP4081 has four inputs, one for each output. Outputs
ALO and BLO are directly controlled by input ALI and BLI.
By holding ALI and BLI low during start-up no shoot-through
conditions can occur. To set the latches to the upper drivers
such that the driver outputs, AHO and BHO, are off, the DIS
pin must be toggled from low to high after power is applied.
This is accomplished with a simple resistor divider, as shown
below in Figure 33. As the V

supply ramps from zero

up, the DIS voltage is below its input threshold of 1.7V due to
the R1/R2 resistor divider. When V

exceeds

approximately 9V to 10V, DIS becomes greater than the
input threshold and the chip disables all outputs. It is critical
that ALI and BLI be held low prior to DIS reaching its

threshold level of 1.7V while V

is ramping up, so that

shoot through is avoided. After power is up the chip can be
enabled by the ENABLE signal which pulls the DIS pin low.

HIP4080
The HIP4080 does not have an input protocol like the
HIP4081 that keeps both lower power MOSFETs off other
than through the DIS pin. IN+ and IN- are inputs to a
comparator that control the bridge in such a way that only
one of the lower power devices is on at a time, assuming
DIS is low. However, keeping both lower MOSFETs off can
be accomplished by controlling the lower turn-on delay pin,
LDEL, while the chip is enabled, as shown in Figure 34.
Pulling LDEL to V

will indefinitely delay the lower turn-on

delays through the input comparator and will keep the lower
MOSFETs off. With the lower MOSFETs off and the chip
enabled, i.e., DIS = low, IN+ or IN- can be switched through
a full cycle, properly setting the upper driver outputs. Once
this is accomplished, LDEL is released to its normal
operating point. It is critical that IN+/IN- switch a full cycle
while LDEL is held high, to avoid shoot-through. This start-
up procedure can be initiated by the supply voltage and/or
the chip enable command by the circuit in Figure 33.

FIGURE 33.

FIGURE 34.

1 BHB

BHI

DIS

BLI

ALI

HDEL

AHI

LDEL

AHB

BHO

BLO

BLS

BHS

ALS

ALO

AHS

AHO

3.3K

ENABLE

15K

1 BHB

BHI

DIS

BLI

ALI

HDEL

AHI

LDEL

AHB

BHO

BLO

BLS

BHS

ALS

ALO

AHS

AHO

3.3K

15K

ENABLE

1 BHB

HEN

DIS

OUT

IN+

HDEL

IN-

LDEL

AHB

BHO

BLO

BLS

BHS

ALS

ALO

AHS

AHO

100K

RDEL

0.1

2N3906

ENABLE

56K

8.2V

56K

100K

HIP4081

HIP4081

E20.3

(JEDEC MS-001-AD ISSUE D)

20 LEAD DUAL-IN-LINE PLASTIC PACKAGE

SYMBOL

INCHES

MILLIMETERS

NOTES

MIN

MAX

MIN

MAX

0.210

5.33

0.015

0.39

0.115

0.195

2.93

4.95

0.014

0.022

0.356

0.558

0.045

0.070

1.55

1.77

0.008

0.014

0.204

0.355

0.980

1.060

24.89

26.9

0.005

0.13

0.300

0.325

7.62

8.25

0.240

0.280

6.10

7.11

0.100 BSC

2.54 BSC

0.300 BSC

7.62 BSC

0.430

10.92

0.115

0.150

2.93

3.81

Rev. 0 12/93

NOTES:

1. Controlling Dimensions: INCH. In case of conflict between

English and Metric dimensions, the inch dimensions control.

2. Dimensioning and tolerancing per ANSI Y14.5M-1982.
3. Symbols are defined in the "MO Series Symbol List" in Section

2.2 of Publication No. 95.

4. Dimensions A, A1 and L are measured with the package seated

in JEDEC seating plane gauge GS-3.

5. D, D1, and E1 dimensions do not include mold flash or

protrusions. Mold flash or protrusions shall not exceed 0.010
inch (0.25mm).

6. E and

are measured with the leads constrained to be

perpendicular to datum

7. e

and e

are measured at the lead tips with the leads

unconstrained. e

must be zero or greater.

8. B1 maximum dimensions do not include dambar protrusions.

Dambar protrusions shall not exceed 0.010 inch (0.25mm).

9. N is the maximum number of terminal positions.

10. Corner leads (1, N, N/2 and N/2 + 1) for E8.3, E16.3, E18.3,

E28.3, E42.6 will have a B1 dimension of 0.030 - 0.045 inch
(0.76 - 1.14mm).

-B-

INDEX

1 2 3

N/2

AREA

SEATING

BASE

PLANE

-C-

-A-

0.010 (0.25)

C A

B S

-C-

Dual-In-Line Plastic Packages (PDIP)

HIP4081

All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.

Intersil Corporation's quality certifications can be viewed at www.intersil.com/design/quality

Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.

For information regarding Intersil Corporation and its products, see www.intersil.com

HIP4081

NOTES:

1. Symbols are defined in the "MO Series Symbol List" in Section

2.2 of Publication Number 95.

2. Dimensioning and tolerancing per ANSI Y14.5M-1982.
3. Dimension "D" does not include mold flash, protrusions or gate

burrs. Mold flash, protrusion and gate burrs shall not exceed
0.15mm (0.006 inch) per side.

4. Dimension "E" does not include interlead flash or protrusions.

Interlead flash and protrusions shall not exceed 0.25mm (0.010
inch) per side.

5. The chamfer on the body is optional. If it is not present, a visual

index feature must be located within the crosshatched area.

6. "L" is the length of terminal for soldering to a substrate.
7. "N" is the number of terminal positions.
8. Terminal numbers are shown for reference only.
9. The lead width "B", as measured 0.36mm (0.014 inch) or greater

above the seating plane, shall not exceed a maximum value of
0.61mm (0.024 inch)

10. Controlling dimension: MILLIMETER. Converted inch

dimensions are not necessarily exact.

INDEX

AREA

-B-

0.25(0.010)

C A

B S

-A-

-C-

SEATING PLANE

0.10(0.004)

h x 45

0.25(0.010)

M20.3

(JEDEC MS-013-AC ISSUE C)

20 LEAD WIDE BODY SMALL OUTLINE PLASTIC PACKAGE

SYMBOL

INCHES

MILLIMETERS

NOTES

MIN

MAX

MIN

MAX

0.0926

0.1043

2.35

2.65

0.0040

0.0118

0.10

0.30

0.013

0.0200

0.33

0.51

0.0091

0.0125

0.23

0.32

0.4961

0.5118

12.60

13.00

0.2914

0.2992

7.40

7.60

0.050 BSC

1.27 BSC

0.394

0.419

10.00

10.65

0.010

0.029

0.25

0.75

0.016

0.050

0.40

1.27

Rev. 0 12/93

Small Outline Plastic Packages (SOIC)

HIP4081

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