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PDF IRS2108 Data sheet ( Hoja de datos )
| Número de pieza | IRS2108 | |
| Descripción | HALF-BRIDGE DRIVER | |
| Fabricantes | International Rectifier | |
| Logotipo |  |
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Data Sheet No. PD60260
IRS2108/IRS21084(S)PbF
Features
HALF-BRIDGE DRIVER
• Floating channel designed for bootstrap operation
• Fully operational to +600 V
• Tolerant to negative transient voltage, dV/dt
immune
• Gate drive supply range from 10 V to 20 V
• Undervoltage lockout for both channels
• 3.3 V, 5 V, and 15 V input logic compatible
• Cross-conduction prevention logic
• Matched propagation delay for both channels
• High-side output in phase with HIN input
• Low-side output out of phase with LIN input
• Logic and power ground +/- 5 V offset
• Internal 540 ns deadtime, and programmable up
to 5 µs with one external RDT resistor (IRS21084)
••
Lower
RoHS
di/dt gate
compliant
driver
for
better
noise
immunity
Packages
8-Lead PDIP
14-Lead PDIP
8-Lead SOIC
14-Lead SOIC
Description
The IRS2108/IRS21084 are high volt-
age, high speed power MOSFET and
IGBT drivers with dependent high- and
low-side referenced output 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 3.3 V logic. The
output drivers feature a high pulse cur-
Feature Comparison
Part
Input
logic
2106/2301
21064
2108
21084
2109/2302
21094
2304
HIN/LIN
HIN/LIN
IN/SD
HIN/LIN
Cross-
conduction
prevention
logic
no
yes
yes
yes
Deadtime
(ns)
none
Internal 540
Programmable 540 - 5000
Internal 540
Programmable 540 - 5000
Internal 100
Ground Pins
COM
VSS/COM
COM
VSS/COM
COM
VSS/COM
COM
ton/toff
(ns)
220/200
220/200
750/200
160/140
rent 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 V.
Typical Connection
VCC
VCC
VB
HIN HIN HO
LIN LIN VS
COM
LO
up to 600 V
TO
LOAD
IRS2108
(Refer to Lead Assignments for correct pin
configuration). These diagrams show
electrical connections only. Please refer to
our Application Notes and DesignTips for
proper circuit board layout.
VCC
HIN
LIN
VSS
HO
VCC
VB
HIN VS
LIN
DT
VSS COM
RDT LO
IRS21084
up to 600 V
TO
LOAD
www.irf.com
1
1 page  
IRS2108/IRS21084(S)PbF
Lead Definitions
Symbol Description
HIN Logic input for high-side gate driver output (HO), in phase (referenced to COM for IRS2108
and VSS for IRS21084)
LIN Logic input for low-side gate driver output (LO), out of phase (referenced to COM for IRS2108
and VSS for IRS21084)
DT Programmable deadtime lead, referenced to VSS (IR21084 only)
VSS
Logic ground (IRS21084 only)
VB High-side floating supply
HO High-side gate driver output
VS High-side floating supply return
VCC
Low-side and logic fixed supply
LO Low-side gate driver output
COM
Low-side return
Lead Assignments
1 VCC
2 HIN
3 LIN
4 COM
VB 8
HO 7
VS 6
LO 5
8 Lead PDIP
IRS2108PbF
1 VCC
2 HIN
3 LIN
4 COM
VB 8
HO 7
VS 6
LO 5
8 Lead SOIC
IRS2108SPbF
1 VCC
2 HIN
3 LIN
4 DT
5 VSS
6 COM
7 LO
14
VB 13
HO 12
VS 11
10
9
8
14 Lead PDIP
IRS21084PbF
www.irf.com
1 VCC
2 HIN
3 LIN
4 DT
5 VSS
6 COM
7 LO
14
VB 13
HO 12
VS 11
10
9
8
14 Lead SOIC
IRS21084SPbF
5
5 Page 
IRS2108/IRS21084(S)PbF
0.5
0.4
0.3
0.2 Max.
0.1
Typ.
0.0
10 12 14 16 18 20
VBAIS Supply Voltage (V)
Figure 11B. High Lovel Output Voltage
vs. Supply Voltage
0.5
0.4
0.3
0.2
0.1 Max.
Typ.
0.0
-50 -25
0 25 50 75 100 125
Temperature (oC)
Figure 12A. Low Level Output Voltage
vs .Te m pe r atur e
0.5
0.4
0.3
0.2
Max.
0.1
Typ.
0
10
12 14 16 18
VBIAS Supply Voltage (V)
20
Figure 12B. Low Level Output Voltage
vs. Supply Voltage
www.irf.com
500
400
300
200
100
M ax.
0
-50 -25
0 25 50 75 100 125
Temperature (oC)
Figure 13A. Offset Supply Leakage Current
vs. Tem perature
11
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet IRS2108.PDF ] | |
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