|
International Rectifier |
www.DataSheet4U.com
Data Sheet No. PD60161-R
IR2108(4) (S) & (PbF)
Features
HALF-BRIDGE DRIVER
• Floating channel designed for bootstrap operation
Fully operational to +600V
Tolerant to negative transient voltage
Packages
dV/dt immune
8-Lead SOIC
14-Lead SOIC
• Gate drive supply range from 10 to 20V
IR2108S
IR21084S
• Undervoltage lockout for both channels
• 3.3V, 5V and 15V input logic compatible
• Cross-conduction prevention logic
• Matched propagation delay for both channels
14-Lead PDIP
IR21084
• 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
programmable up to 5us with one
2106/2301//2108//2109/2302/2304 Feature Comparison
external RDT resistor (IR21084)
• Lower di/dt gate driver for better
noise immunity
• Available in Lead-Free
Description
The IR2108(4)(S) are high voltage, high speed
power MOSFET and IGBT drivers with depen-
dent high and low side referenced output
channels. Proprietary HVIC and latch immune
Part
2106/2301
21064
2108
21084
2109/2302
21094
2304
Input
logic
HIN/LIN
HIN/LIN
IN/SD
HIN/LIN
Cross-
conduction
prevention
logic
no
yes
yes
yes
Dead-Time
none
Internal 540ns
Programmable 0.54~5 µs
Internal 540ns
Programmable 0.54~5 µs
Internal 100ns
Ground Pins
COM
VSS/COM
COM
VSS/COM
COM
VSS/COM
COM
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.
Typical Connection
VCC
VCC
VB
HIN HIN HO
LIN LIN VS
COM
LO
up to 600V
TO
LOAD
IR2108
(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.
VCC
HIN
LIN
V SS
HO
VCC
VB
HIN VS
LIN
DT
RDT
VSS COM
LO
IR21084
up to 600V
TO
LOAD
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
Definition
Min.
Max. Units
VB
VS
VHO
VCC
VLO
DT
VIN
VSS
dVS/dt
PD
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 @ TA ≤ +25°C
(8 lead PDIP)
(8 lead SOIC)
-0.3
VB - 25
VS - 0.3
-0.3
-0.3
VSS - 0.3
VSS - 0.3
VCC - 25
—
—
—
625
VB + 0.3
VB + 0.3
25
VCC + 0.3
VCC + 0.3
VCC + 0.3
VCC + 0.3
50
1.0
0.625
V
V/ns
(14 lead PDIP)
(14 lead SOIC)
—
—
1.6 W
1.0
RthJA
Thermal resistance, junction to ambient
(8 lead PDIP)
(8 lead SOIC)
—
—
125
200
(14 lead PDIP)
(14 lead SOIC)
—
—
75 °C/W
120
TJ Junction temperature
TS Storage temperature
TL Lead temperature (soldering, 10 seconds)
— 150
-50 150 °C
— 300
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 VS and VSS offset rating are tested with all supplies biased at 15V differential.
Symbol
Definition
Min.
Max. Units
VB High side floating supply absolute voltage
VS + 10
VS + 20
VS High side floating supply offset voltage
Note 1
600
VHO
High side floating output voltage
VS VB
VCC Low side and logic fixed supply voltage
10 20
VLO Low side output voltage
0
VCC
V
VIN Logic input voltage
IR2108
COM
VCC
IR21084
VSS
VCC
DT Programmable dead-time pin voltage (IR21084 only)
VSS
VCC
VSS Logic ground (IR21084 only)
TA Ambient temperature
-5 5
-40 125 °C
Note 1: Logic operational for VS of -5 to +600V. Logic state held for VS of -5V to -VBS. (Please refer to the Design Tip
DT97-3 for more details).
2 www.irf.com
|