IRS2108PBF Datasheet, PDF (1/25 Pages) International Rectifier – HALF-BRIDGE DRIVER

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 R_DT 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
V_CC
V_CC
V_B
HIN
HIN
HO
LIN
LIN
V_S
COM
LO
up to 600 V
TO
LOAD
IRS2108
V_CC
HIN
LIN
(Refer to Lead Assignments for correct pin
configuration). These diagrams show
electrical connections only. Please refer to
V_SS
our Application Notes and DesignTips for
proper circuit board layout.
HO
V_CC
V_B
HIN
V_S
LIN
DT
V_SS
COM
R_DT
LO
IRS21084
up to 600 V
TO
LOAD
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