Application Note AN-1112
IRS2304 and IR2304 Comparison
By Jason Nguyen, Min Fang, David New
Table of Contents
Page
Introduction ..........................................................................................1
Block Diagrams ....................................................................................2
Electrical Characteristic Differences.....................................................2
Summary..............................................................................................7
Introduction
The IRS2304 is a new HVIC product that replaces the IR2304 HVICs and is pin-to-pin
compatible with its corresponding predecessor. In many cases, little or no change is
necessary to use the new product. This application note describes the various differences
between the IRS2304 and the IR2304 HVICs.
The IRS2304 is a high voltage, high speed power MOSFET and IGBT drivers with
independent 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 3.3V logic. The output driver
features 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 V.
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Block Diagrams
The IRS2304 and IR2304 share the same block diagram. There are no functional changes
between corresponding part numbers.
Electrical Characteristic Differences
All measurement conditions remain unchanged unless noted.
mentioned in this document have not changed.
Parameters not
Absolute Maximum Ratings
There are no changes in the Absolute Maximum Ratings.
Recommended Operating Conditions
There are no changes in the Recommended Operating Conditions.
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2
Static Electrical Characteristics
VOH
High level output voltage, VBIAS - VO (IO = 20 mA)
VOL
Low level output voltage, VO (IO = 20 mA)
IO+
IO-
Output high short circuit pulsed current
(VO = 0 V, VIN=Logic "1", PW <= 10 µs)
Output low short circuit pulsed current
(VO = 15 V, VIN = Logic "0", PW <= 10 µs)
-
Io = 20 mA
2.8
-
0.05
Io = 2 mA
0.2
-
Io = 20 mA
1.2
-
0.02
Io = 2 mA
0.1
60
-
-
60
290
-
130
-
-
130
600
-
V
mA
With the IRS2304,
1. The VOH and VOL are tested using a new standardized test condition of Io=2 mA.
The output driver’s RON is lower for the IRS2304, which improves immunity
against the Miller effect.
2. The typical values for Io+ and Io- are higher, which allows faster switching
Dynamic Electrical Characteristics
min
IR2304
typ
max
min
Turn-on propagation delay (Vs = 0 V)
120
220
320
90
150
210
toff
Turn-off propagation delay (Vs = 0 V or 600 V)
130
220
330
90
150
210
tr
Turn-on rise time
60
200
300
-
70
120
tf
Turn-off fall time
20
100
170
-
35
50
Parameter
Definition
Symbol
ton
IRS2304
typ
max
Units
ns
The IRS2304 has faster rise and fall times when compared to the IR2304.
Figures
This figures shown in this section compare figures shown in the IR2304 (left column)
and IRS2304 (right column) datasheets. Illustrations that have not changed between
the two datasheets have not been included in this section.
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AN-1112
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IRS2304
5
High Level Output Voltage (V)
High Level Output Voltage (V)
IR2304
4
3
M ax.
2
1
0
-50
-25
0
25
50
75
100
125
0.5
0.4
0.3
0.2
M ax.
0.1
0.0
-50
-25
0
Temperature ( oC)
5
M ax
3
2
1
0
10
12
14
100
125
16
18
20
0.4
0.3
M ax
0.2
0.1
0.0
10
12
14
16
18
20
V BAIS Supply Voltage (V)
Figure 11B. High Level Output Voltage
vs. Supply Voltage (Io = 20m A)
Figure 11B. High Level Output Voltage
vs. Supply Voltage (Io = 2m A)
0.20
Low Level Output Voltage (V)
2.0
Low Level Output Voltage (V)
75
0.5
V BAIS Supply Voltage (V)
1.5
1.0
50
Figure 11A. High Level Output Voltage
vs. Tem perature (Io = 2m A)
High Level Output Voltage (V)
High Level Output Voltage (V)
Figure 11A. High Level Output Voltage
vs. Tem perature (Io = 20m A)
4
25
Temperature ( oC)
M ax.
0.5
0.0
-50
-25
0
25
50
75
100
125
o
0.15
0.10
M ax.
0.05
0.00
-50
-25
0
25
50
75
100
Temperature ( C)
Temperature ( C)
Figure 12A. Low Level Output Voltage
vs.Tem perature (Io = 20m A)
Figure 12A. Low Level Output Voltage
vs.Tem perature (Io = 2m A)
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125
o
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0.20
Low Level Output Voltage (V)
Low Level Output Voltage (V)
2.0
M ax
1.5
1.0
0.5
0.0
10
12
14
16
18
20
0.15
M ax
0.10
0.05
0.00
10
12
V BIAS Supply Voltage (V)
18
20
Figure 12B. Low Level Output
vs. Supply Voltage (Io = 2m A)
500
Turn-on Delay Time (ns) .
500
400
300
M ax.
200
Typ.
100
0
-50
-25
0
25
50
75
100
400
300
200
M ax
100
Typ.
0
-50
125
-25
o
0
25
50
75
100
125
o
Temperature( C)
Temperature( C)
Figure 17A. Turn-On Propagation Delay
vs. Tem perature
Figure 17A. Turn-On Propagation Delay
vs. Tem perature
500
Turn-on Delay Time (ns) .
500
Turn-on Delay Time (ns) .
16
V BIAS Supply Voltage (V)
Figure 12B. Low Level Output
vs. Supply Voltage (Io = 20m A)
Turn-on Delay Time (ns) .
14
M ax
400
300
Typ.
200
100
0
400
300
M ax
200
Typ.
100
0
10
12
14
16
18
20
Supply Voltage (V)
12
14
16
18
20
Supply Voltage (V)
Figure 17B. Turn-On Propagation Delay
vs. Supply Voltage
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AN-1112
Figure 17B. Turn-On Propagation Delay
vs. Supply Voltage
5
500
400
400
300
Turn-Off Time (ns)
Turn-Off Time (ns)
500
M ax.
200
Typ.
100
0
-50
-25
0
25
50
75
100
300
200
M ax.
100
Typ.
0
-50
125
-25
0
o
75
100
125
Temperature( C)
Figure 18A. Turn-Off Propagation Delay
vs. Tem perature
Figure 18A. Turn-Off Propagation Delay
vs. Tem perature
500
500
M ax.
400
Turn-Off Time (ns)
Turn-Off Time (ns)
50
o
Temperature( C)
300
Typ.
200
100
0
400
300
M ax.
200
Typ.
100
0
10
12
14
16
18
20
10
12
14
Supply Voltage (V)
16
18
20
Supply Voltage (V)
Figure 18B. Turn-Off Propagation Delay
vs. Supply Voltage
Figure 18B. Turn-Off Propagation Delay
vs. Supply Voltage
500
Turn-On Rise Time (ns)
500
Turn-On Rise Time (ns)
25
400
300
M ax.
200
100
Typ.
0
-50
-25
0
25
50
75
100
125
Temperature ( oC)
300
200
100
M ax.
Typ.
0
-50
-25
0
25
50
75
100
125
Temperature ( oC)
Figure 19A. Turn-On Rise Tim e
vs.Tem perature
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400
Figure 19A. Turn-On Rise Tim e
vs.Tem perature
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500
400
Turn-On Rise Time (ns)
Turn-On Rise Time (ns)
500
M ax
300
Typ
200
100
0
400
300
200
M ax
100
Typ
0
10
12
14
16
18
20
10
12
V BIAS Supply Voltage (V)
Figure 19B. Turn-On Rise Tim e
vs. Supply Voltage
16
18
20
Figure 19B. Turn-On Rise Tim e
vs. Supply Voltage
500
Turn-Off Fall Time (ns)
500
Turn-Off Fall Time (ns)
14
V BIAS Supply Voltage (V)
400
300
200
M ax.
100
400
300
200
100
M ax.
Typ.
0
-50
-25
0
25
50
75
100
0
-50
125
25
50
75
100
Figure 20A. Turn-Off Fall Tim e
vs. Tem perature
Figure 20A. Turn-Off Fall Tim e
vs. Tem perature
125
500
Turn-Off Fall Time (ns)
Turn-Off Fall Time (ns)
0
Temperature ( oC)
400
300
100
-25
Temperature ( oC)
500
200
Typ.
M ax
Typ
0
400
300
200
100
M ax
Typ
0
10
12
14
16
18
20
10
Vbias Supply Voltage (V)
12
14
16
18
20
Vbias Supply Voltage (V)
Figure 20B. Turn-Off Fall Tim e
vs. Supply voltage
Figure 20B. Turn-Off Fall Tim e
vs. Supply voltage
Summary
As shown by this document, the IRS2304 and the IR2304 are very similar with only a
few negligible parametric differences.
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