Data Sheet No. PD60161-R
IR2108
(
4
) (S) & (PbF)
•
Floating channel designed for bootstrap operation
Fully operational to +600V
Packages
Tolerant to negative transient voltage
dV/dt immune
14-Lead SOIC
8-Lead SOIC
•
Gate drive supply range from 10 to 20V
IR21084S
IR2108S
•
Undervoltage lockout for both channels
•
3.3V, 5V and 15V input logic compatible
14-Lead PDIP
•
Cross-conduction prevention logic
IR21084
•
Matched propagation delay for both channels
•
High side output in phase with HIN input
8-Lead PDIP
•
Low side output out of phase with
LIN
input
IR2108
Logic and power ground +/- 5V offset.
•
•
Internal 540ns dead-time, and
2106/2301//2108//2109/2302/2304 Feature Comparison
programmable up to 5us with one
external R
DT
resistor (IR21084)
Cross-
Input
conduction
•
Lower di/dt gate driver for better
Dead-Time
Ground Pins
Part
logic
prevention
noise immunity
logic
•
Available in Lead-Free
2106/2301
COM
Features
HALF-BRIDGE DRIVER
Description
Programmable 0.54~5
µs
The IR2108(4)(S) are high voltage, high speed
Internal 540ns
IN/SD
yes
power MOSFET and IGBT drivers with depen-
Programmable 0.54~5
µs
dent high and low side referenced output
yes
Internal 100ns
HIN/LIN
COM
2304
channels. Proprietary HVIC and latch immune
CMOS technologies enable ruggedized monolithic construction. The logic input is compatible with standard CMOS
or LSTTL output, down to 3.3V logic. The output drivers feature a high pulse current buffer stage designed for
minimum driver cross-conduction. The floating channel can be used to drive an N-channel power MOSFET or
IGBT in the high side configuration which operates up to 600 volts.
21064
2108
21084
2109/2302
21094
HIN/LIN
no
none
HIN/LIN
yes
Internal 540ns
VSS/COM
COM
VSS/COM
COM
VSS/COM
Typical Connection
up to 600V
V
CC
V
CC
HIN
LIN
V
B
HO
V
S
LO
TO
LOAD
HIN
LIN
COM
up to 600V
IR2108
V
CC
HIN
LIN
HO
V
CC
HIN
LIN
DT
V
SS
R
DT
V
SS
COM
LO
V
B
V
S
IR21084
TO
LOAD
(Refer to Lead Assignments for correct pin
configuration). This/These diagram(s) show
electrical connections only. Please refer to our
Application Notes and DesignTips for proper
circuit board layout.
www.irf.com
1
IR2108
(
4
) (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 COM. The thermal resistance and power dissipation ratings are measured
under board mounted and still air conditions.
Symbol
V
B
V
S
V
HO
V
CC
V
LO
DT
V
IN
V
SS
dV
S
/dt
P
D
Definition
High side floating absolute voltage
High side floating supply offset voltage
High side floating output voltage
Low side and logic fixed supply voltage
Low side output voltage
Programmable dead-time pin voltage (IR21084 only)
Logic input voltage (HIN &
LIN
)
Logic ground (IR21084 only)
Allowable offset supply voltage transient
Package power dissipation @ T
A
≤
+25°C
(8 lead PDIP)
(8 lead SOIC)
(14 lead PDIP)
(14 lead SOIC)
Min.
-0.3
V
B
- 25
V
S
- 0.3
-0.3
-0.3
V
SS
- 0.3
V
SS
- 0.3
V
CC
- 25
—
—
—
—
—
—
—
—
—
—
-50
—
Max.
625
V
B
+ 0.3
V
B
+ 0.3
25
V
CC
+ 0.3
V
CC
+ 0.3
V
CC
+ 0.3
V
CC
+ 0.3
50
1.0
0.625
1.6
1.0
125
200
75
120
150
150
300
Units
V
V/ns
W
Rth
JA
Thermal resistance, junction to ambient
(8 lead PDIP)
(8 lead SOIC)
(14 lead PDIP)
(14 lead SOIC)
°C/W
T
J
T
S
T
L
Junction temperature
Storage temperature
Lead temperature (soldering, 10 seconds)
°C
Recommended Operating Conditions
The Input/Output logic timing diagram is shown in figure 1. For proper operation the device should be used within the
recommended conditions. The V
S
and V
SS
offset rating are tested with all supplies biased at 15V differential.
Symbol
VB
V
S
V
HO
V
CC
V
LO
V
IN
DT
V
SS
Definition
High side floating supply absolute voltage
High side floating supply offset voltage
High side floating output voltage
Low side and logic fixed supply voltage
Low side output voltage
Logic input voltage
IR2108
IR21084
Programmable dead-time pin voltage (IR21084 only)
Logic ground (IR21084 only)
Min.
V
S
+ 10
Note 1
V
S
10
0
COM
V
SS
V
SS
-5
Max.
V
S
+ 20
600
V
B
20
V
CC
V
CC
V
CC
V
CC
5
Units
V
°C
T
A
Ambient temperature
-40
125
Note 1: Logic operational for V
S
of -5 to +600V. Logic state held for V
S
of -5V to -V
BS
. (Please refer to the Design Tip
DT97-3 for more details).
2
www.irf.com
IR2108
(
4
) (S) & (PbF)
Dynamic Electrical Characteristics
V
BIAS
(V
CC
, V
BS
) = 15V, V
SS
= COM, C
L
= 1000 pF, T
A
= 25°C, DT = VSS unless otherwise specified.
Symbol
ton
toff
MT
tr
tf
DT
MDT
Definition
Turn-on propagation delay
Turn-off propagation delay
Delay matching
|
ton - toff
|
Turn-on rise time
Turn-off fall time
Deadtime: LO turn-off to HO turn-on(DT
LO-HO) &
HO turn-off to LO turn-on (DT
HO-LO)
Deadtime matching =
|
DT
LO-HO
- DT
HO-LO
|
Min.
—
—
—
—
—
400
4
—
—
Typ.
220
200
0
150
50
540
5
0
0
Max. Units Test Conditions
300
280
30
220
80
680
6
60
600
usec
nsec
nsec
V
S
= 0V
V
S
= 0V
RDT= 0
RDT = 200k
(IR21084)
RDT=0
RDT = 200k
(IR21084)
VS = 0V
V
S
= 0V or 600V
Static Electrical Characteristics
V
BIAS
(V
CC
, V
BS
) = 15V, V
SS
= COM, DT= V
SS
and T
A
= 25°C unless otherwise specified. The V
IL
, V
IH
and I
IN
parameters are referenced to V
SS
/COM and are applicable to the respective input leads: HIN and LIN. The V
O
, I
O
and Ron
parameters are referenced to COM and are applicable to the respective output leads: HO and LO.
Symbol
V
IH
V
IL
V
OH
V
OL
I
LK
I
QBS
I
QCC
I
IN+
I
IN-
V
CCUV+
V
BSUV+
V
CCUV-
V
BSUV-
V
CCUVH
V
BSUVH
I
O+
I
O-
Definition
Logic “1” input voltage for HIN & logic “0” for
LIN
Logic “0” input voltage for HIN & logic “1” for
LIN
High level output voltage, V
BIAS
- V
O
Low level output voltage, V
O
Offset supply leakage current
Quiescent V
BS
supply current
Quiescent V
CC
supply current
Logic “1” input bias current
Logic “0” input bias current
V
CC
and V
BS
supply undervoltage positive going
threshold
V
CC
and V
BS
supply undervoltage negative going
threshold
Hysteresis
Output high short circuit pulsed current
Output low short circuit pulsed current
Min. Typ. Max. Units Test Conditions
2.9
—
—
—
—
20
0.4
—
—
8.0
7.4
0.3
120
250
—
—
0.8
0.3
—
75
1.0
5
—
8.9
8.2
0.7
200
350
—
0.8
1.4
0.6
50
130
1.6
20
2
9.8
9.0
V
—
—
—
mA
V
O
= 0V,
PW
≤
10
µs
V
O
= 15V,
PW
≤
10
µs
µA
µA
mA
V
V
CC
= 10V to 20V
V
CC
= 10V to 20V
I
O
= 20 mA
I
O
= 20 mA
V
B
= V
S
= 600V
V
IN
= 0V or 5V
V
IN
= 0V or 5V
RDT=0
HIN = 5V,
LIN
= 0V
HIN = 0V,
LIN
= 5V
www.irf.com
3
IR2108
(
4
) (S) & (PbF)
Functional Block Diagram
VB
2108
HIN
VSS/COM
LEVEL
SHIFT
HV
LEVEL
SHIFTER
PULSE
GENERATOR
UV
DETECT
R
PULSE
FILTER
R
S
Q
HO
VS
DT
DEADTIME &
SHOOT-THROUGH
PREVENTION
UV
DETECT
VCC
+5V
LO
LIN
VSS/COM
LEVEL
SHIFT
DELAY
COM
VSS
VB
21084
HIN
VSS/COM
LEVEL
SHIFT
HV
LEVEL
SHIFTER
PULSE
GENERATOR
UV
DETECT
R
PULSE
FILTER
R
S
Q
HO
VS
DT
+5V
DEADTIME &
SHOOT-THROUGH
PREVENTION
UV
DETECT
VCC
LO
LIN
VSS/COM
LEVEL
SHIFT
DELAY
COM
VSS
4
www.irf.com
IR2108
(
4
) (S) & (PbF)
Lead Definitions
Symbol Description
HIN
Logic input for high side gate driver output (HO), in phase (referenced to COM for IR2108 and
VSS for IR21084)
Logic input for low side gate driver output (LO), out of phase (referenced to COM for IR2108
and VSS for IR21084)
DT
VSS
V
B
HO
V
S
V
CC
LO
COM
Programmable dead-time lead, referenced to VSS. (IR21084 only)
Logic Ground (21084 only)
High side floating supply
High side gate driver output
High side floating supply return
Low side and logic fixed supply
Low side gate driver output
Low side return
LIN
Lead Assignments
1
2
3
4
VCC
HIN
LIN
COM
VB
HO
VS
LO
8
7
6
5
1
2
3
4
VCC
HIN
LIN
COM
VB
HO
VS
LO
8
7
6
5
8 Lead PDIP
8 Lead SOIC
IR2108
IR2108S
1
2
3
4
5
6
7
VCC
HIN
LIN
DT
VSS
COM
LO
VB
HO
VS
1
4
13
12
11
10
9
8
1
2
3
4
5
6
7
VCC
HIN
LIN
DT
VSS
COM
LO
VB
HO
VS
1
4
13
12
11
10
9
8
14 Lead PDIP
14 Lead SOIC
IR21084
www.irf.com
IR21084S
5
京公网安备 11010802033920号
EEWORLD
