Data Sheet No. PD60278
IRS4426/IRS4427/IRS4428(S)PbF
DUAL LOW SIDE DRIVER
Features
•
Gate drive supply range from 6 V to 20 V
•
CMOS Schmitt-triggered inputs
•
Matched propagation delay for both channels
•
Outputs out of phase with inputs (IRS4426)
•
Outputs in phase with inputs (IRS4427)
•
OutputA out of phase with inputA and
•
outputB in phase with inputB (IRS4428)
RoHS compliant
Product Summary
I
O
+/-
V
OUT
t
on/off
(typ.)
1.5 A / 1.5 A
6 V - 20 V
50 ns & 50 ns
Descriptions
The IRS4426/IRS4427/IRS4428 are low voltage,
high speed power MOSFET and IGBT driver. Pro-
prietary latch immune CMOS technologies en-
able ruggedized monolithic construction. Logic
inputs are compatible with standard CMOS or
LSTTL outputs. The output drivers feature a high
pulse current buffer stage designed for mini-
mum driver cross-conduction. Propagation
delays between two channels are matched.
Packages
8 Lead PDIP
8-Lead SOIC
Block Diagram
1
NC
NC
8
2
INA
OUTA
7
TO
LOAD
3
GND
Vs
6
4
INB
OUTB
5
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IRS4426/IRS4427/IRS4428(S)PbF
Absolute Maximum Ratings
Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage param-
eters are absolute voltages referenced to GND. The thermal resistance and power dissipation ratings are measured
under board mounted and still air conditions.
Symbol
V
S
V
O
V
IN
P
D
Rth
JA
T
J
T
S
T
L
Definition
Fixed supply voltage
Output voltage
Logic input voltage
Package power dissipation @ T
A
≤
+25 °C
Thermal resistance, junction to ambient
Junction temperature
Storage temperature
Lead temperature (soldering, 10 seconds)
(8 Lead PDIP)
(8 lead SOIC)
(8 lead PDIP)
(8 lead SOIC)
Min.
-0.3
-0.3
-0.3
—
—
—
—
—
-55
—
Max.
20 (Note 1)
V
S
+ 0.3
V
S
+ 0.3
1.0
0.625
125
200
150
150
300
Units
V
W
°C/W
°C
Note 1: All supplies are fully tested at 25 V and an internal 20 V clamp exists for each supply.
Recommended Operating Conditions
The input/output logic timing diagram is shown in Fig. 1. For proper operation the device should be used within the
recommended conditions. All voltage parameters are absolute voltages referenced to GND.
Symbol
V
S
V
O
V
IN
T
A
Definition
Fixed supply voltage
Output voltage
Logic input voltage
Ambient temperature
Min.
6
0
0
-40
Max.
20
V
S
V
S
125
Units
V
°C
DC Electrical Characteristics
V
BIAS
(V
S
) = 15 V, T
A
= 25 °C unless otherwise specified. The V
IN
and I
IN
parameters are referenced to GND and are
applicable to input leads: INA and INB. The V
O
and I
O
parameters are referenced to GND and are applicable to the
output leads: OUTA and OUTB.
Symbol
(IRS4426)
V
IH
Definition
Logic “0” input voltage (OUTA=LO, OUTB=LO)
Logic “1” input voltage (OUTA=HI, OUTB=HI)
(IRS4427)
Logic “0” input voltage (OUTA=LO),
input voltage (OUTB=HI) (IRS4428)
Logic “1”
Min. Typ. Max. Units Test Conditions
2.5
—
—
V
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IRS4426/IRS4427/IRS4428(S)PbF
DC Electrical Characteristics cont.
V
BIAS
(V
S
) = 15 V, T
A
= 25 °C unless otherwise specified. The V
IN
, and I
IN
parameters are referenced to GND and are
applicable to input leads: INA and INB. The V
O
and I
O
parameters are referenced to GND and are applicable to the
output leads: OUTA and OUTB.
Symbol
(IRS4426)
Definition
Logic “1” input voltage (OUTA=HI, OUTB=HI)
Logic “0” input voltage (OUTA=LO, OUTB=LO)
Min. Typ. Max. Units Test Conditions
V
IL
(IRS4427)
Logic “I” input voltage (OUTA=HI),
Logic “0”
input voltage (OUTB=LO) (IRS4428)
—
—
0.6
V
V
OH
V
OL
High level output voltage, V
BIAS
-V
O
Low level output voltage, V
O
—
—
—
—
1.4
0.15
Io = 0 A
Io = 20 mA
V
IN
= 0 V (IRS4426)
V
IN
= V
S
(IRS4427)
V
INA
= 0 V (IRS4428)
V
INB
= V
S
(IRS4428)
µA
V
IN
= V
S
(IRS4426)
V
IN
= 0 V (IRS4427)
V
INA
= V
S
(IRS4428)
V
INB
= 0 V (IRS4428)
V
IN
= 0 V or V
S
V
O
= 0 V, V
IN
= 0 V
(IRS4426)
V
O
= 0 V, V
IN
= V
S
(IRS4427)
V
O
= 0 V, V
INA
= 0 V
(IRS4428)
V
O
= 0 V, V
INB
= V
S
A
(IRS4428)
PW
≤
10 µs
V
O
= 15 V, V
IN
= V
S
(IRS4426)
V
O
= 15 V, V
IN
= 0 V
(IRS4427)
V
O
= 15 V, V
INA
= V
S
(IRS4428)
V
O
= 15 V, V
INB
= 0 V
(IRS4428)
PW
≤
10 µs
I
IN+
Logic “1” input bias current (OUT=HI)
—
5
15
I
IN-
Logic “0” input bias current (OUT=LO)
—
-10
-30
I
QS
Quiescent Vs supply current
—
100
200
I
O+
Output high short circuit pulsed current
---
2.3
—
I
O-
Output low short circuit pulsed current
---
3.3
—
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IRS4426/IRS4427/IRS4428(S)PbF
AC Electrical Characteristics
V
BIAS
(V
S
) = 15 V, CL = 1000 pF, T
A
= 25
o
C unless otherwise specified.
Symbol
Definition
Propagation delay characteristics
td1
td2
tr
tf
Turn-on propagation delay
Turn-off propagation delay
Turn-on rise time
Turn-off fall time
Min. Typ. Max. Units Test Conditions
—
—
—
—
50
50
25
25
95
95
55
55
ns
Fig. 4
Functional Block Diagram IRS4426
5V
Vs
INA
PREDRV
DRV
OUTA
5V
Vs
INB
PREDRV
DRV
OUTB
GND
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IRS4426/IRS4427/IRS4428(S)PbF
Functional Block Diagram IRS4427
Vs
INA
PREDRV
DRV
OUTA
Vs
INB
PREDRV
DRV
OUTB
GND
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