IR2238QPBF [INFINEON]
AC Motor Controller, PQFP64, MS-022-GB-1, MQFP-64;
| 型号： | IR2238QPBF |
| 厂家： | 
Infineon |
| 描述： | AC Motor Controller, PQFP64, MS-022-GB-1, MQFP-64 运动控制电子器件 信号电路 电动机控制 电机 控制器 |
| 文件： | 总17页 (文件大小：355K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Data Sheet No. PD60228
IR2238Q
3-PHASE AC Motor Controller IC
Features
• Floating channel up to +1200V
Product Summary
• “soft” over-current shutdown turns off output
• Integrated desaturation circuit
• Two stage turn on output for di/dt control
• Integrated brake IGBT driver with protection
• Voltage feedback sensing function
• Separate pull-up/pull-down output drive pins
• Matched delay outputs
V
1200V max.
220mA/460mA
12.5V - 20V
OFFSET
I +/- (min.)
O
V
OUT
Brake (Io+/- min)
40mA/80mA
Deadtime Asymmetry Skew (max.) 145nsec
• Under voltage lockout with hysteresis band
Deadtime (typ. with RDT=39kΩ)
1µsec
• Programmable deadtime
• Hard shutdown function
DESAT Blanking time (typ.)
3.0µsec
DSH, DSL input voltage
threshold (typ.)
Description
8.0V
The IR2238Q is a high voltage, 3-phase IGBT driver
best suited for AC motor drive applications. Integrated
desaturation logic provides all mode of overcurrent
protection, including ground fault protection. Soft shut-
down is predominantly initiated in the event of
overcurrent followed by turn-off of all six outputsf. A
shutdown input is provided for a customized shut-
down function. The DT pin allows external resistor to
program the deadtime. Output drivers have separate
turn on/off pins with two stage turn-on output to
achieve the desired di/dt switching level of IGBT.
Voltage feedback provides accurate volts *seconds
measurement.
Soft shutdown duration time (typ.)
6.0µsec
Voltage feedback matching
delay time (max.)
125nsec
Package
64-Lead MQFP
Block
Diagram
VCC
15V
VB1,2,3
3
LIN1,2,3
HOP1,2,3
HIN1,2,3
3
HOQ1,2,3
HON1,2,3
FAULT
W
V
U
uP,Control
BRIN
SD
Motor
VCC
DC
DSH1,2,3
IR2238Q
BUS
VFH1,2,3
VFL1,2,3
VCC
VS1,2,3
LOP1,2,3
(Refer to Lead
Assignments for
correct pin
LOQ1,2,3
LON1,2,3
DSL1,2,3
DSB
BR
configuration).
This diagram
DT
COM
VSS
shows electrical
connections only.
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1
IR2238Q
Absolute Maximum Ratings (tentative)
Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters
are absolute voltages referenced to COM, all currents are defined positive into any lead. The thermal resistance and power
dissipation ratings are measured under board mounted and still air conditions.
Symbol
Definition
Min.
Max.
Units
V
S
V
-25
V
V
+0.3
B1,2,3
High side offset voltage
B1,2,3
V
B
High side floating supply voltage
-0.3
1225
V
V
S1,2,3
- 0.3
+ 0.3
High side floating output voltage (HOP, HON, HOQ)
Low side and logic fixed supply voltage
Logic ground
HO
B1,2,3
V
-0.3
25
CC
V
V
V
- 25
V
+ 0.3
SS
CC
CC
V
-0.3
V
+ 0.3
Low side output voltage (LOP, LON, LOQ)
LO
CC
V
Logic input voltage (
)
- 0.3
V
CC
+ 0.3 or
HIN/N,LIN, BRIN/N, SD
IN
SS
V
V
SS
+ 15
which ever is
lower
V
FAULT output voltage
V
V
- 0.3
- 0.3
V
+ 0.3
FLT
SS
SS
CC
CC
V
F
Feedback output voltage
V
+ 0.3
V
High side desat/feedback input voltage
Low side desat/feedback input voltage
Brake output voltage
V
- 0.3 V
B1,2,3
+ 0.3
DSH
S1,2,3
V
- 0.3
V
+ 0.3
DSL
CC
CC
V
-0.3
—
V
+ 0.3
50
BR
dVs/dt
Allowable offset voltage slew rate
V/ns
W
P
D
Package power dissipation @ T ≤ +25°C
—
2.0
A
°C/W
°C
Rth
JA
Thermal resistance, junction to ambient
—
—
60
T
J
Junction temperature
125
T
S
Storage temperature
-55
—
150
300
T
L
Lead temperature (soldering, 10 seconds)
Recommended Operating Conditions
For proper operation the device should be used within the recommended conditions. All voltage parameters are absolute
voltages referenced to COM. The V offset rating is tested with all supplies biased at 15V differential.
S
Symbol
Definition
Min.
Max.
Units
V
High side floating supply voltage
V
S1,2,3
+ 13
V
S1,2,3
+ 20
B1,2,3
V
High side floating supply offset voltage
High side (HOP/HOQ/HON) output voltage
Low side (LOP/LOQ/LON) output voltage
Note 1
1200
S1,2,3
V
V
V
B1,2,3
HO1,2,3
S1,2,3
V
V
V
LO1,2,3
COM
CC
V
Logic input voltage (
)
V
V
+ 5
SS
HIN/N,LIN,BRIN/N SD
IN
SS
V
Low side supply voltage
Logic ground
12.5
20
+5
CC
V
V
-5
SS
V
FAULT output voltage
V
V
FLT
SS
CC
V
F
Feedback output voltage
High side desat/feedback input voltage
Low side desat/feedback input voltage
BRAKE output voltage
V
V
SS
CC
V
V
- 0.3
V
B1,2,3
DSH
S1,2,3
V
- 0.3
V
DSL
CC
CC
V
V
V
BR
COM
T
A
Ambient temperature
-20
115
°C
Note 1: Logic operational for Vs of COM-5V to COM+1200V. Logic state held for Vs of COM-5V to COM-VBS.
2
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IR2238Q
Static Electrical Characteristics
o
T
= 25 C
unless otherwise specified. The V , V
V
(V , V 1,2,3) = 15V and
CC BS
and I parameters are refer-
A
BIAS
IN TH IN
enced to V
and are applicable to all six channels (HOP/HOQ/HON1,2,3 and LOP/LOQ/LON1,2,3). The V and I
O O
SS
parameters are referenced to COM and V 1,2,3 and are applicable to the respective output leads: H
S
and L
O1,2,3.
O1,2,3
V
and I
parameters are referenced to COM and V
S1,2,3
DESAT
DESAT
Symbol
Definition
Min. Typ. Max. Units Test Conditions
V
V
V
V
V
V
V
supply undervoltage positive going threshold
supply undervoltage negative going threshold
supply undervoltage lockout hysteresis
10.3
9.5
—
11.2
10.2
1.0
12.5
11.3
—
CCUV+
CC1
CC1
CC1
V
CCUV-
V
CCUVH
V
V
supply undervoltage positive going threshold
supply undervoltage negative going threshold
supply undervoltage lockout hysteresis
10.3
9.5
—
11.2
10.2
1.0
12.5
11.3
—
BSUV+
BS
BS
BS
V
BSUV-
V
BSUVH
I
Offset supply leakage current
—
—
50
V
= V
S1,2,3
LK
B1,2,3
= 1200V
µA
V
=0V, V =5V
HIN
I
Quiescent V supply current
BS
—
—
150
3
250
6
LIN
QBS
I
Quiescent V
supply current
mA
V =0V, V =5V
LIN HIN
QCC
CC
DT = 1µsec
V
Logic “0” input voltage (HIN/N, BRIN/N) (OUT=LO)
Logic “1” input voltage (HIN/N, BRIN/N) (OUT=HI)
2.0
—
—
—
—
0.8
2.0
IH
V
IL
V
Logic input positive going threshold
(HIN/N, LIN, BRIN/N, SD)
1.2
1.6
t+
V
= 12.5 to 20V
V
mV
µA
CC
V
t-
Logic input negative going threshold
(HIN/N, LIN, BRIN/N, SD)
0.8
1.2
1.6
∆V
Logic input hysteresis (HIN, LIN, BRIN, SD)
—
—
0.4
—
—
T
V
High level output voltage, V
- V (normal switching)
O
100
OH
BIAS
HOP, HOQ, LOP, LOQ
Io = 1mA
V
Low level output voltage, V (normal switching)
O
—
—
100
OL
HON, LON
I
Logic “1” input bias current (HIN/N, BRIN/N)
Logic “1” input bias current (LIN, SD)
—
—
5
70
70
5
—
—
—
—
—
—
—
V
V
V
V
= 0V
= 5V
= 5V
= 0V
IN+
IN
IN
IN
IN
I
Logic “0” input bias current (HIN/N, BRIN/N)
Logic “0” input bias current (LIN, SD)
—
IN-
—
I
High DSH, DSL, DSB input bias current
Low DSH, DSL, DSB input bias current
Output high first stage short circuit pulsed current
—
15
0.1
350
V
= 15V
= 0V
DS+
DESAT
I
—
V
DESAT
DS-
I 1
O +
220
V = 0V, V = 0V
O IN
PW ≤ 200 ns
I 2
O +
Output high second stage short circuit pulsed current 120
200
540
—
—
V
= 0V, V = 0V
IN
O
mA
PW ≤ 10 µs
= 15V, V = 5V
O IN
I
Output low short circuit pulsed current
460
V
O-
PW ≤ 10 µs
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3
IR2238Q
Static Electrical Characteristics cont.
o
T
= 25 C
unless otherwise specified. The V , V
V
(V , V 1,2,3) = 15V and
CC BS
and I parameters are refer-
A
BIAS
IN TH IN
enced to V
and are applicable to all six channels (HOP/HOQ/HON1,2,3 and LOP/LOQ/LON1,2,3). The V and I
O O
SS
parameters are referenced to COM and V 1,2,3 and are applicable to the respective output leads: H
S
and L
O1,2,3.
O1,2,3
V
and I
parameters are referenced to COM and V
S1,2,3
DESAT
DESAT
Symbol
Definition
Min. Typ. Max. Units Test Conditions
I
BR output high short circuit pulsed current
BR output low short circuit pulsed current
40
80
70
—
—
V
=0V, V
BRIN
=0V
OBR+
BR
PW ≤ 10 µs
=15V,V
BRIN
mA
I
125
V
BR
=5V
OBR-
PW ≤ 10 µs
V
BR high level output voltage, V -V
CC BR
—
—
—
—
—
—
—
—
—
300
150
0.8
—
OHB
I
= 1mA
BR
mV
V
BR low level output voltage, V
BR
OLB
V
VFH or VFL low level output voltage
VFH or VFL output on resistance
Soft shutdown on resistance
FAULT low on resistance
—
V
I = 10mA
VF
OLVF
R
60
ON,VF
Ω
R
500
60
—
ON,SS
R
—
ON,FLT
V
High DSH1,2,3 and DSL1,2,3 and DSB input
threshold voltage
8.0
—
DESAT+
V
V
Low DSH1,2,3 and DSL1,2,3 or DSB input
threshold voltage
—
—
7.0
1.0
—
—
DESAT-
V
DS input voltage hysteresis
DSTH
AC Electrical Characteristics
o
= 25 C
and C = 1000 pF unless otherwise specified.
T
,
SS
V
(V
V
CC, BS
) = 15V, V
= V
A
BIAS
L
S1,2,3
Symbol
Definition
Min. Typ. Max. Units Test Conditions
Propagation Delay Characteristics
T
on1
Turn-on first stage duration time
—
200
—
V
IN
= 0 & 5V
RL(HOQ/LOQ) = 10Ω
t
Turn-on propagation delay
Turn-off propagation delay
Turn-on rise time
250
250
—
550
550
80
750
750
—
on
V
IN
= 0 & 5V
t
off
V
= 0 to1200V
S1,2,3
ns
t
r
HOP=HON,LOP=LON
Figure 5
t
f
Turn-off fall time
—
25
—
t
DSH to HO soft shutdown propogation delay at
HO turn-on
—
3000
—
DESAT1
V
= 0V,
HIN
V
= 15V,
DESAT
t
DSH to HO soft shutdown propogation delay after
blanking
1000
—
—
—
DESAT2
Figure 7
t
DSL to LO soft shutdown propogation delay at
LO turn-on
—
3000
V
LIN
= 5V,
DESAT3
VDESAT =15V, Fig.7
4
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IR2238Q
AC Electrical Characteristics cont.
o
T
,
SS
= 25 C
and C = 1000 pF unless otherwise specified.
L
V
(V
V
CC, BS
) = 15V, V
= V
A
BIAS
S1,2,3
Symbol
Definition
Min. Typ. Max. Units Test Conditions
Propagation Delay Characteristics
V
= 5V,
t
t
t
t
DSL to LO soft shutdown propogation delay after 1000
blanking
—
—
LIN
DESAT4
DESAT5
DESAT6
DESAT7
V
=15V, Fig. 7
DESAT
DSB to HO hard shutdown propogation delay
—
1300
1300
—
V
= 0V,
HIN
V
=15V, Fig. 7
= 5V,
DESAT
DSB to LO hard shutdown propogation delay
—
—
V
LIN
V
=15V, Fig. 7
DESAT
DSB to BR hard shutdown propogation delay
VFH high to low propagation delay
1000
—
—
V
= 0V,
VBRIN
V
=15V, Fig. 7
DSB
t
—
550
—
—
—
—
—
V
=15V to 0V
VFHL1,2,3
DESAT
ns
Figure 8
=0V to 15V
t
VFH low to high propagation delay
VFL low to high propagation delay
VFL high to low propagation delay
Minimum pulse width of VFH and VFL
—
—
—
—
550
550
550
400
V
V
V
V
VFHHL1,2,3
DESAT
DESAT
DESAT
DESAT
Figure 8
t
=0V to 15V
VFLH1,2,3
Figure 8
t
=15V to 0V
VFLL1,2,3
Figure 8
t
=15V to 0V
PWVF
or 0v to 15V fig. 8
t
Soft shutdown minimum pulse width of DSx
Soft shutdown duration period
1000
—
—
—
—
—
—
—
—
—
DS
C =1000pF,
L
V
=15V Figure 6
DS
t
6000
3300
1300
3300
1000
1000
SS
t
DSH to FAULT propagation delay at HO turn-on
DSH to FAULT propagation delay after blanking
DSL to FAULT propagation delay at LO turn-on
DSL to FAULT propagation delay after blanking
DSB to FAULT propagation delay
—
V
= 0V,
FLT,DESAT1
HIN
V
=15V, Fig. 7
DS
t
—
FLT,DESAT2
t
—
FLT,DESAT3
V
= 5V,
LIN
V =15V, Fig. 7
DS
t
—
FLT,DESAT4
t
—
B
= 0V,
RIN
FLTDSB
V
V
=15V, Fig. 7
=15V, Fig. 7
=15V, Fig. 11
DESAT
t
LIN1 =LIN2 =LIN3 =0 to FAULT
Minimum FAULT duration period
9.0
9.0
—
—
FLTCLR
DESAT
µs
t
V
DESAT
fault
15.0
21.0
FLTCLR pending
t
DS blanking time at turn-on
—
—
3000
600
—
V
= on,
BL
IN
V
=15V, Fig. 7
= on,
IN
DESAT
t
SD to output shutdown propagation delay
900
V
SD
V
=0V, Fig. 10
DESAT
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5
IR2238Q
AC Electrical Characteristics cont.
o
T
,
SS
= 25 C
and C = 1000 pF unless otherwise specified.
L
V
(V
V
CC, BS
) = 15V, V
= V
A
BIAS
S1,2,3
Symbol
Definition
Min. Typ. Max. Units Test Conditions
Propagation Delay Characteristics
t
SD negation to output enable propagation delay
—
600
900
V
IN
=on
EN
V
=0V, Fig.10
DESAT
t
BR output turn-on propagation
BR output turn-off propagation
BR output turn-on rise time
BR output turn-off fall time
—
—
—
—
110
80
200
150
400
200
onBR
t
offBR
Figure 5
ns
t
235
130
rBR
t
fBR
Deadtime/Delay Matching Characteristics
DT
Deadtime
900
76
1050
100
5000
—
1200
124
Figure 8
external resistor=39kΩ
Figure 8
external resistor=0kΩ
4500
5500
145
Figure 8
external resistor=220kΩ
MDT
PM
Deadtime asymmetry skew, any of
DTLoff1,2,3-DTHoff1,2,3
—
DT=1000nsec.
Fig.8
ns
PWM propagation delay matching max {ton/toff}
—
—
125
DT=1000nsec.
Fig.5
- min {ton/toff}, (ton/toff are applicable to all six
channels)
VM
Voltage feedback delay matching, I any of
—
—
125
Input pulse width
t
t t t
VFHL1,2,3, VFHH1,2,3, VFLL1,2,3, VFLH1,2,3
>400 nsec
Figure 9
any of t t t
VFHL1,2,3, VFHH1,2,3, VFLL1,2,3,
-
t
I
VFLH1,2,3
6
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IR2238Q
Functional Block Diagram
VB1
HOQ1
HOP1
LATCH
HIN1
SHUTDOWN
VFB
SCHMITT
LOCAL DESAT
PROTECTION
SOFT
di/dt control
DRIVER
HIN1
HIN2
HIN1
LIN1
TRIGGER
INPUT &
100nsec
minimum
Deadtime
LEVEL
HON1
SHOOT
SHUTDOWN
VOLTAGE
SHIFTERS
THROUGH
PREVENTION
VS1
FEEDBACK
DSH1
UV DETECT
VFH1
VB2
HOQ2
HOP2
LATCH
HIN2
SCHMITT
TRIGGER
INPUT &
LOCAL DESAT
PROTECTION
SOFT
di/dt control
DRIVER
HIN2
LIN2
100nsec
minimum
Deadtime
SHUTDOWN
HON2
LEVEL
SHOOT
SHUTDOWN
VOLTAGE
SHIFTERS
THROUGH
PREVENTION
VS2
VFB
FEEDBACK
DSH2
UV DETECT
VFH2
VB3
HOQ3
LATCH
HIN3
SHUTDOWN
VFB
HOP3
HON3
di/dt control
DRIVER
SCHMITT
TRIGGER
INPUT &
LOCAL DESAT
PROTECTION
SOFT
HIN3
HIN3
LIN3
100nsec
minimum
Deadtime
LEVEL
SHOOT
SHUTDOWN
VOLTAGE
SHIFTERS
THROUGH
PREVENTION
VS3
FEEDBACK
DSH3
UV DETECT
VFH3
SD
DT
SOFT
SHUTDOWN
LOCAL DESAT
PROTECTION
LOQ1
LOP1
LIN1
di/dt control
DRIVER
SOFT
SHUTDOWN
LON1
DSL1
VFL1
VFL2
VFL3
VOLTAGE
FEEDBACK
LOCAL DESAT
PROTECTION
LOP2
LOP2
LIN2
di/dt control
DRIVER
SOFT
SHUTDOWN
FAULT
LOGIC
CLEAR
LOGIC
LON2
DSL2
VOLTAGE
FEEDBACK
FAULT
VCC
LOQ3
LOP3
LON3
LOCAL DESAT
PROTECTION
LIN3
di/dt control
DRIVER
SOFT
SHUTDOWN
UV
To Low Side Logic
VOLTAGE
DETECT
FEEDBACK
DSL3
BRIN
VSS
BRAKE
BR
SHUTDOWN
DESAT
DRIVER
DETECTION
DSB
Figure 1
COM
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7
IR2238Q
Gate Drive Circuit
Block Diagram
VB
ONE SHOT
HOP
Gate
HOQ
HON
3usec
UV Detect
Blanking
Soft Shutdown
6usec
One Shot
Impedence =
500 ohms
Shutdown
1usec
filter
DSH
VS
Voltage
Feedback
8V
Figure 2 Driver Output Circuit Block Diagram
VB1
HOQ1
HOP1
LATCH
HIN1
SCHMITT
HIN1
LOCAL DESAT
PROTECTION
SOFT
di/dt control
DRIVER
HIN1
TRIGGER
SHUTDOWN
HON1
100nsec
deadtime
Input
Latch
INPUT &
SHOOT
LEVEL
SHIFTERS
SHUTDOWN
VOLTAGE
THROUGH
PREVENTION
VS1
LIN1
FEEDBACK
VFB
DSH1
HOLD
UV DETECT
VFH1
HOLD LATCH
ONESHOT 6us
CLEAR
LOGIC
LIN2
LIN3
FAULT
LOGIC
HARD
SHUTDOWN
FAULT
HIN2 SHUTDOWN ONESHOT
HIN3 SHUTDOWN ONESHOT
LIN3 SHUTDOWN ONESHOT
LIN2 SHUTDOWN ONESHOT
Q SET
S
VSS
VCC
Q
CLR R
SHUTDOWN
ONESHOT
UV
DETECT
LOCAL DESAT
PROTECTION
LOQ1
LOP1
SOFT
LIN1
SHUTDOWN
SOFT SHUTDOWN
di/dt control
DRIVER
VOLTAGE
LON1
DSL1
FEEDBACK
VFL1
To Low Side Logic
DESAT
HARD SHUTDOWN
BRAKE
BR
DETECTION
DRIVER
VOLTAGE
BRIN
FEEDBACK
DSB
COM
Figure 3 Fault Logic Diagram
8
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IR2238Q
HIN1,2,3
LIN1,2,3
DS/VFH1,2,3
DS/VFL1,2,3
SD
FAULT
BRIN
BR
DSB
HO(HOP/HOQ/HON)
LO(LOP/HOQ/LON)
VFH1,2,3
VFL1,2,3
Figure 4 Input/Output Timing Diagram
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9
IR2238Q
PW
in
5V or
3.3V
BRIN
HIN
LIN
50%
tr
50%
toff
tf
ton
PW
out
HO (HOP=HON)
LO (LOP=LON)
BR
90%
90%
10%
10%
ton1
HOQ
LOQ
50%
10%
50%
Figure 5 Switching Time Waveforms
3.3V
or 5V
LIN 1,2,3
t
DS
DSL
8V
7V
active
Soft Shutdown Driver Enable for all L.S. output
&
Hold Driver Enable for all H.S. output
t
SS
t
DESAT4
LO 1,2,3
Hard Shutdown Driver Enable for all output
Figure 6.1 Low Side Desat Soft Shutdown Timing Waveform
10
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IR2238Q
3.3V
HIN1
or 5V
t DS
DSH1
8V
7V
active
Soft Shutdown Driver Enable for H.S. output on Desaturation
and all Low Side output
&
Hold Driver Enable for the remaining H.S. output
t
SS
tDESAT2
HO1
active
Hard Shutdown Driver Enable for all output
Figure 6.2 High Side Desat Soft Shutdown Timing Waveform
3.3V
or 5V
BRIN
t DS
DSB
BR
8V
7V
tDESAT7
Hard Shutdown
in effect
t
DESAT5, DESAt6
t
Hard Shutdown
in effect
HO1,2,3
LO1,2,3
Figure 6.3 Brake Desat Timing Waveform
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11
IR2238Q
Blanking
Blanking
in effect
in effect
HIN1,2,3
LIN1,2,3
Blanking
in effect
Blanking
in effect
DSH
8V
8V
DSL
DSB
8V
8V
8V
8V
tFLTCLR
50%
tFLTCLR
50%
tFLTCLR
50%
tFLTCLR
50%
tFLTCLR
50%
tFLTCLR
50%
FAULT
t FLT,DESAT2
t FLT,DESAT1
t FLT,DESAT3
t FLT,DESAT4
tfault
tFLT,DSB
tFLT,DSB
t DESAT2
90%
t DESAT5
90%
t
HO
DESAT1
HARD
(HOP/HOQ/HON)
SHUTDOWN
90%
SOFT SHUTDOWN
50%
t DESAT4
90%
t DESAT6
90%
50%
t DESAT3
tBL
tBL
SOFT SHUTDOWN
90%
LO
50%
SOFT SHUTDOWN
50%
(LOP/LOQ/LON)
tBL
tBL
t DESAT7
90%
t DESAT7
SOFT SHUTDOWN
90%
BR
Figure 7 Desat Timing Diagram
12
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IR2238Q
HIN
LIN
DTHoff
DTLoff
90%
HO (HOP=HOQ=HON)
50%
50%
10%
DT
DT
50%
50%
90%
10%
LO (LOP=LOQ=LON)
Figure 8 Internal Deadtime Timing
VB1,2,3
7V
8V
DSH1,2,3
VS1,2,3
VB1,2,3
DSL1,2,3
8V
7V
VS1,2,3
t
VFHL1,2,3
t VFHH1,2,3
VCC
90%
VFH1,2,3
10%
VSS
t
VFLL1,2,3
t
VFLH1,2,3
VCC
90%
VFL1,2,3
10%
VSS
Figure 9 Voltage Feedback Timing
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13
IR2238Q
SD
50%
5V or
3.3V
50%
t SD
t EN
15V
90%
HO (HOP=HOQ=HON)
LO (LOP=LON=LOQ)
10%
Figure 10 Shutdown Timing
HIN
LIN
DSH
HO
tfault
FAULT
50%
50%
Figure 11 Fault Duration with Pending Faultclear Waveform
(refer to Note LD2 under the lead definition table)
14
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IR2238Q
Lead Definitions
Symbol
Description
V
Low side supply voltage
Logic Ground
CC
VSS
HIN1,2,3
Logic inputs for high side gate driver outputs (HOP1,2,3/HON1,2,3, out of phase)
LIN1,2,3
FAULT
SD
Logic inputs for low side gate driver outputs (LOP1,2,3/LON1,2,3, out of phase)
Fault output (latched and open drain)
Shutdown input
DT
Deadtime programmable resistor pin
Brake IGBT desaturation protection input and voltage feedback input
Logic input for brake driver
DSB
BRIN
BR
Brake driver output
COM
Low side drivers return
V 1,2,3
B
High side gate drive floating supply
HOP1,2,3
HOQ1,2,3
HON1,2,3
DSH1,2,3
High side driver sourcing output
High side driver boost sourcing output
High side driver sinking output
IGBT desaturation protection input and high side voltage feedback input
High voltage floating supply return
V
S1,2,3
LOP1,2,3
LON1,2,3
DSL1,2,3
VFH1,2,3
VFL1,2,3
Low side driver sourcing output
Low side driver sinking output
IGBT desaturation protection input and low side voltage feedback input
High side voltage feedback logic output
Low side voltage feedback logic output
NOTE:
LD1-
Low side soft shutdown is initiated locally in an event over current, which is sensed by the DSL pin. It is
followed by the synchronized soft shutdown of the rest of the low side outputs; meanwhile it will hold all input
information for a period of tss until the soft shutdown finishes. Then the hard shutdown will be initiated to
complete the shut down cycle. (Figure 6.1)
High side soft shutdown is initiated locally in an event over current, which is sensed by the DSH pin. It is
followed by the synchronized soft shutdown of all the low side outputs; meanwhile it will hold all input information
for a period of tss until the soft shutdown finishes. Then the hard shutdown will be initiated to complete the shut
down cycle. (Figure 6.2)
LD2-
Soft shutdown is initiated in an event of overcurrent, which is followed by turn-off all six outputs. The fault
condition will remain in a fixed period(tfault) even though the faultclear condition is in effect (Fig11). In the case
that faultclear is not in effect, fault duration = tfault + tfltclr.
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15
IR2238Q
Lead Assignments
5.3mm
33
32
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34
5.3mm
51
52
3.5mm
3.5mm
(4.3mm)
5.0mm
VCC
LOP1
LOQ1
LON1
53
(4.3mm)
54
31
30
29
28
27
26
25
24
23
22
21
20
VS1
DSH1
HON1
HOQ1
HOP1
55
56
57
58
59
60
61
62
63
DSL1
LOP2
LOQ2
MQFP64
VB1
LON2
DSL2
LOP3
LOQ3
LON3
4.5mm
DT
64
1
DSL3
19
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18
64 Lead MQFP
IR2238
16
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IR2238Q
Case outline
01-6054 00
64-Lead MQFP
01-2023 01 MS-022GA-2
WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105
This product has been designed and qualified for the consumer market.
Qualification Standards can be found on IR’s Web Site http://www.irf.com
Data and specifications subject to change without notice.
10/5/2004
www.irf.com
17
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