Part Number Hot Search : 
DRF120 03B247 2012H 22P10 LA42210 06N60E TX0246A M67706U
Product Description
Full Text Search
 

To Download IR2238Q Datasheet File

  If you can't view the Datasheet, Please click here to try to view without PDF Reader .  
 
 


  Datasheet File OCR Text:
 Data Sheet No. PD60228
IR2238Q
Features
* * * * * * * * * * *
Floating channel up to +1200V "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 Under voltage lockout with hysteresis band Programmable deadtime Hard shutdown function
3-PHASE AC Motor Controller IC
Product Summary
VOFFSET IO+/- (min.) VOUT Brake (Io+/- min) Deadtime (typ. with RDT=39k) DESAT Blanking time (typ.) DSH, DSL input voltage threshold (typ.) Soft shutdown duration time (typ.) Voltage feedback matching delay time (max.) 1200V max. 220mA/460mA 12.5V - 20V 40mA/80mA 145nsec 1sec 3.0sec 8.0V 6.0sec 125nsec
Deadtime Asymmetry Skew (max.)
Description
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 shutdown is predominantly initiated in the event of overcurrent followed by turn-off of all six outputsf. A shutdown input is provided for a customized shutdown 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.
Package
64-Lead MQFP
Block Diagram
15V
3 3 VCC LIN1,2,3 HIN1,2,3 FAULT VB1,2,3 HOP1,2,3 HOQ1,2,3 HON1,2,3
DC BUS
(Refer to Lead Assignments for correct pin configuration). This diagram shows electrical connections only.
uP,Control
VCC
W V
VCC
BRIN SD
IR2238Q
DSH1,2,3 VS1,2,3 LOP1,2,3 LOQ1,2,3 LON1,2,3 DSL1,2,3
Motor
VFH1,2,3 VFL1,2,3 DSB BR DT
U
COM VSS
www.irf.com
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
VS VB VHO V CC VSS VLO VIN
Definition
High side offset voltage High side floating supply voltage High side floating output voltage (HOP, HON, HOQ) Low side and logic fixed supply voltage Logic ground Low side output voltage (LOP, LON, LOQ) Logic input voltage (HIN/N,LIN, BRIN/N, SD)
Min.
VB1,2,3 -25 -0.3 VS1,2,3 - 0.3 -0.3 VCC - 25 -0.3 VSS - 0.3
Max.
VB1,2,3 +0.3 1225 VB1,2,3 + 0.3 25 VCC + 0.3 VCC + 0.3
Units
VFLT VF V DSH V DSL VBR dVs/dt PD RthJA TJ TS TL
FAULT output voltage Feedback output voltage High side desat/feedback input voltage Low side desat/feedback input voltage Brake output voltage Allowable offset voltage slew rate Package power dissipation @ TA +25C Thermal resistance, junction to ambient Junction temperature Storage temperature Lead temperature (soldering, 10 seconds)
VCC + 0.3 or VSS + 15 which ever is lower VSS - 0.3 VCC + 0.3 VSS - 0.3 VCC + 0.3 VS1,2,3 - 0.3 VB1,2,3 + 0.3 - 0.3 VCC + 0.3 -0.3 VCC + 0.3 -- 50 -- 2.0 -- -- -55 -- 60 125 150 300
V
V/ns W C/W C
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 VS offset rating is tested with all supplies biased at 15V differential.
Symbol
VB1,2,3 VS1,2,3 VHO1,2,3 VLO1,2,3 VIN V CC VSS VFLT VF V DSH V DSL V BR TA
Definition
High side floating supply voltage High side floating supply offset voltage High side (HOP/HOQ/HON) output voltage Low side (LOP/LOQ/LON) output voltage Logic input voltage (HIN/N,LIN,BRIN/N SD) Low side supply voltage Logic ground FAULT output voltage Feedback output voltage High side desat/feedback input voltage Low side desat/feedback input voltage BRAKE output voltage Ambient temperature
Min.
VS1,2,3 + 13 Note 1 VS1,2,3 VCOM VSS 12.5 -5 VSS VSS VS1,2,3 - 0.3 - 0.3 VCOM -20
Max.
VS1,2,3 + 20 1200 VB1,2,3 V CC VSS + 5 20 +5 V CC V CC VB1,2,3 V CC V CC 115
Units
V
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
www.irf.com
IR2238Q
Static Electrical Characteristics
VBIAS (VCC, VBS1,2,3) = 15V and T A = 25o C unless otherwise specified. The VIN , VTH and I IN parameters are referenced to VSS and are applicable to all six channels (HOP/HOQ/HON1,2,3 and LOP/LOQ/LON1,2,3). The VO and IO parameters are referenced to COM and VS1,2,3 and are applicable to the respective output leads: H O1,2,3 and L O1,2,3. VDESAT and I DESAT parameters are referenced to COM and VS1,2,3
Symbol
V CCUV+ VCCUVV CCUVH VBSUV+ VBSUVV BSUVH I LK IQBS I QCC VIH VIL Vt+ VtVT VOH VOL IIN+ IINI DS+ IDSIO1+ IO2+ IO-
Definition
VCC1 supply undervoltage positive going threshold VCC1 supply undervoltage negative going threshold VCC1 supply undervoltage lockout hysteresis VBS supply undervoltage positive going threshold VBS supply undervoltage negative going threshold VBS supply undervoltage lockout hysteresis Offset supply leakage current Quiescent VBS supply current Quiescent VCC supply current Logic "0" input voltage (HIN/N, BRIN/N) (OUT=LO) Logic "1" input voltage (HIN/N, BRIN/N) (OUT=HI) Logic input positive going threshold (HIN/N, LIN, BRIN/N, SD) Logic input negative going threshold (HIN/N, LIN, BRIN/N, SD) Logic input hysteresis (HIN, LIN, BRIN, SD)
Min. Typ. Max. Units Test Conditions
10.3 9.5 -- 10.3 9.5 -- -- -- -- 2.0 -- 1.2 0.8 -- 11.2 10.2 1.0 11.2 10.2 1.0 -- 150 3 -- -- 1.6 1.2 0.4 -- -- 5 70 70 5 15 0.1 350 200 540 12.5 11.3 -- 12.5 11.3 -- 50 A 250 6 -- 0.8 2.0 V 1.6 -- 100 mV 100 -- -- -- -- -- -- -- -- -- A VIN = 0V VIN = 5V VIN = 5V VIN = 0V VDESAT = 15V VDESAT = 0V VO = 0V, VIN = 0V PW 200 ns mA VO = 0V, VIN = 0V PW 10 s VO = 15V, VIN = 5V PW 10 s Io = 1mA VCC = 12.5 to 20V mA VB1,2,3 = VS1,2,3 = 1200V VLIN=0V, VHIN=5V VLIN=0V, VHIN=5V DT = 1sec V
High level output voltage, VBIAS - VO (normal switching) -- HOP, HOQ, LOP, LOQ Low level output voltage, VO (normal switching) HON, LON Logic "1" input bias current (HIN/N, BRIN/N) Logic "1" input bias current (LIN, SD) Logic "0" input bias current (HIN/N, BRIN/N) Logic "0" input bias current (LIN, SD) High DSH, DSL, DSB input bias current Low DSH, DSL, DSB input bias current Output high first stage short circuit pulsed current Output high second stage short circuit pulsed current Output low short circuit pulsed current -- -- -- -- -- -- -- 220 120 460
www.irf.com
3
IR2238Q
Static Electrical Characteristics cont.
V BIAS (VCC, VBS1,2,3) = 15V and T A = 25oC unless otherwise specified. The V IN , VTH and I IN parameters are referenced to VSS and are applicable to all six channels (HOP/HOQ/HON1,2,3 and LOP/LOQ/LON1,2,3). The VO and I O parameters are referenced to COM and V S1,2,3 and are applicable to the respective output leads: H O1,2,3 and L O1,2,3. V DESAT and I DESAT parameters are referenced to COM and VS1,2,3
Symbol
IOBR+ IOBRVOHB VOLB VOLVF RON,VF RON,SS RON,FLT VDESAT+ VDESATVDSTH
Definition
BR output high short circuit pulsed current BR output low short circuit pulsed current BR high level output voltage, VCC-VBR BR low level output voltage, VBR VFH or VFL low level output voltage VFH or VFL output on resistance Soft shutdown on resistance FAULT low on resistance High DSH1,2,3 and DSL1,2,3 and DSB input threshold voltage Low DSH1,2,3 and DSL1,2,3 or DSB input threshold voltage DS input voltage hysteresis
Min. Typ. Max. Units Test Conditions
40 80 -- -- -- -- -- -- -- -- -- 70 125 -- -- -- 60 500 60 8.0 7.0 1.0 -- -- 300 150 0.8 -- -- -- -- -- -- V mV V mA VBR=0V, VBRIN=0V PW 10 s VBR=15V,VBRIN=5V PW 10 s IBR = 1mA IVF = 10mA
AC Electrical Characteristics
VBIAS (VCC, VBS) = 15V, V S1,2,3 = VSS, TA = 25oC and C L = 1000 pF unless otherwise specified.
Symbol Definition Propagation Delay Characteristics
Ton1 ton toff tr tf tDESAT1 tDESAT2 tDESAT3 Turn-on first stage duration time Turn-on propagation delay Turn-off propagation delay Turn-on rise time Turn-off fall time DSH to HO soft shutdown propogation delay at HO turn-on DSH to HO soft shutdown propogation delay after blanking DSL to LO soft shutdown propogation delay at LO turn-on
Min.
-- 250 250 -- -- -- 1000 --
Typ. Max. Units Test Conditions
200 550 550 80 25 3000 -- 3000 -- 750 750 -- -- -- -- -- ns VIN = 0 & 5V RL(HOQ/LOQ) = 10 VIN = 0 & 5V VS1,2,3 = 0 to1200V HOP=HON,LOP=LON Figure 5 VHIN = 0V, VDESAT = 15V, Figure 7 VLIN = 5V, VDESAT =15V, Fig.7
4
www.irf.com
IR2238Q
AC Electrical Characteristics cont.
V BIAS (VCC, VBS) = 15V, V S1,2,3 = VSS, T A = 25oC and C L = 1000 pF unless otherwise specified.
Symbol Definition Propagation Delay Characteristics
tDESAT4 tDESAT5 tDESAT6 tDESAT7 tVFHL1,2,3 DSL to LO soft shutdown propogation delay after blanking DSB to HO hard shutdown propogation delay DSB to LO hard shutdown propogation delay DSB to BR hard shutdown propogation delay VFH high to low propagation delay
Min.
1000 -- -- 1000 -- -- -- -- -- 1000 -- -- -- -- -- -- 9.0 9.0 -- --
Typ. Max. Units Test Conditions
-- 1300 1300 -- 550 550 550 550 400 -- 6000 3300 1300 3300 1000 1000 -- 15.0 3000 600 -- -- -- -- -- ns -- -- -- -- -- -- -- -- -- -- -- -- 21.0 -- 900 s VLIN = 5V, VDESAT =15V, Fig. 7 VHIN = 0V, VDESAT =15V, Fig. 7 VLIN = 5V, VDESAT =15V, Fig. 7 VVBRIN = 0V, VDSB =15V, Fig. 7 VDESAT=15V to 0V Figure 8 VDESAT=0V to 15V Figure 8 VDESAT=0V to 15V Figure 8 VDESAT=15V to 0V Figure 8 VDESAT=15V to 0V or 0v to 15V fig. 8 CL=1000pF, VDS=15V Figure 6 VHIN = 0V, VDS =15V, Fig. 7 VLIN = 5V, VDS =15V, Fig. 7 BRIN = 0V, VDESAT =15V, Fig. 7 VDESAT =15V, Fig. 7 VDESAT =15V, Fig. 11 FLTCLR pending VIN = on, VDESAT =15V, Fig. 7 VIN = on, VDESAT =0V, Fig. 10
tVFHHL1,2,3 VFH low to high propagation delay tVFLH1,2,3 tVFLL1,2,3 tPWVF tDS tSS VFL low to high propagation delay VFL high to low propagation delay Minimum pulse width of VFH and VFL Soft shutdown minimum pulse width of DSx Soft shutdown duration period
tFLT,DESAT1 DSH to FAULT propagation delay at HO turn-on tFLT,DESAT2 DSH to FAULT propagation delay after blanking tFLT,DESAT3 DSL to FAULT propagation delay at LO turn-on tFLT,DESAT4 DSL to FAULT propagation delay after blanking tFLTDSB tFLTCLR tfault tBL tSD DSB to FAULT propagation delay LIN1 =LIN2 =LIN3 =0 to FAULT Minimum FAULT duration period DS blanking time at turn-on SD to output shutdown propagation delay
www.irf.com
5
IR2238Q
AC Electrical Characteristics cont.
V BIAS (VCC, VBS) = 15V, V S1,2,3 = VSS, T A = 25o C and CL = 1000 pF unless otherwise specified.
Symbol Definition Propagation Delay Characteristics
tEN tonBR toffBR trBR tfBR DT SD negation to output enable propagation delay BR output turn-on propagation BR output turn-off propagation BR output turn-on rise time BR output turn-off fall time Deadtime
Min.
-- -- -- -- -- 900 76 4500
Typ. Max. Units Test Conditions
600 110 80 235 130 1050 100 5000 -- -- 900 200 150 400 200 1200 124 5500 145 125 Figure 8
external resistor=39k
VIN =on VDESAT=0V, Fig.10
Figure 5 ns
Deadtime/Delay Matching Characteristics
Figure 8
external resistor=0k
Figure 8
external resistor=220k
MDT PM
Deadtime asymmetry skew, any of DTLoff1,2,3-DTHoff1,2,3 PWM propagation delay matching max {ton/toff} - min {ton/toff}, (ton/toff are applicable to all six channels) Voltage feedback delay matching, I any of tVFHL1,2,3, tVFHH1,2,3, tVFLL1,2,3, tVFLH1,2,3 - any of tVFHL1,2,3, tVFHH1,2,3, tVFLL1,2,3, tVFLH1,2,3 I
-- --
ns
DT=1000nsec. Fig.8 DT=1000nsec. Fig.5 Input pulse width
>400 nsec
VM
--
--
125
Figure 9
6
www.irf.com
IR2238Q
Functional Block Diagram
VB1 LATCH HIN1 SCHMITT TRIGGER INPUT & SHOOT THROUGH PREVENTION HOQ1
HIN1 100nsec minimum Deadtime LEVEL SHIFTERS
SHUTDOWN
LIN1
VFB
LOCAL DESAT PROTECTION SOFT SHUTDOWN VOLTAGE FEEDBACK UV DETECT
HIN1
di/dt control
HOP1 HON1 VS1 DSH1
DRIVER
VFH1 VB2 LATCH LOCAL DESAT PROTECTION SOFT SHUTDOWN VOLTAGE FEEDBACK UV DETECT VFH2 VB3 HOQ3 HOQ2
HIN2
HIN2 SCHMITT TRIGGER INPUT & SHOOT THROUGH PREVENTION
LIN2
100nsec minimum Deadtime
HIN2
di/dt control
HOP2 HON2 VS2 DSH2
LEVEL SHIFTERS
SHUTDOWN
DRIVER
VFB
HIN3
HIN3 SCHMITT TRIGGER INPUT & SHOOT THROUGH PREVENTION
LATCH LOCAL DESAT PROTECTION SOFT SHUTDOWN VOLTAGE FEEDBACK UV DETECT
LIN3
100nsec minimum Deadtime
HIN3
di/dt control
HOP3 HON3 VS3 DSH3
LEVEL SHIFTERS
SHUTDOWN
DRIVER
VFB
VFH3 SD DT VFL1 VFL2 VFL3
SOFT SHUTDOWN
LOCAL DESAT PROTECTION SOFT SHUTDOWN VOLTAGE FEEDBACK
LOQ1 LIN1 di/dt control LOP1 LON1
DRIVER
DSL1
LOCAL DESAT PROTECTION
LOP2 LIN2 di/dt control LOP2 LON2
CLEAR LOGIC
FAULT LOGIC
SOFT SHUTDOWN VOLTAGE FEEDBACK
DRIVER
DSL2 FAULT VCC LOCAL DESAT PROTECTION SOFT SHUTDOWN LOQ3 LIN3 di/dt control LOP3 LON3
To Low Side Logic
UV DETECT
DRIVER
VOLTAGE FEEDBACK DSL3
BRIN
VSS
SHUTDOWN
DESAT DETECTION
BRAKE DRIVER
BR
DSB
Figure 1
COM
www.irf.com
7
IR2238Q
Gate Drive Circuit Block Diagram
ONE SHOT
VB HOP HOQ HON
PRE DRIVER
Gate
UV Detect
3usec Blanking
6usec One Shot
Soft Shutdown Impedence = 500 ohms
1usec filter
Shutdown Voltage Feedback DSH
8V
VS
Figure 2 Driver Output Circuit Block Diagram
VB1 LATCH HIN1 SCHMITT TRIGGER INPUT & SHOOT THROUGH PREVENTION HOQ1
HIN1 100nsec deadtime Input Latch
HOLD LEVEL SHIFTERS SHUTDOWN
LIN1
VFB
LOCAL DESAT PROTECTION SOFT SHUTDOWN VOLTAGE FEEDBACK UV DETECT
HIN1
di/dt control
HOP1 HON1 VS1 DSH1
DRIVER
VFH1
HOLD LATCH ONESHOT 6us LIN2 LIN3 CLEAR LOGIC
FAULT LOGIC
HIN2 SHUTDOWN ONESHOT HIN3 SHUTDOWN ONESHOT LIN3 SHUTDOWN ONESHOT LIN2 SHUTDOWN ONESHOT
FAULT
HARD SHUTDOWN
Q
VSS
SET
S
Fltduration ONESHOT 12us
Q CLR R
VCC
UV DETECT
SHUTDOWN ONESHOT LOCAL DESAT PROTECTION SOFT SHUTDOWN VOLTAGE FEEDBACK LIN1 di/dt control
SOFT SHUTDOWN
LOQ1 LOP1 LON1
DRIVER
VFL1 DSL1
To Low Side Logic
HARD SHUTDOWN
DESAT DETECTION VOLTAGE FEEDBACK
BRAKE DRIVER
BR
BRIN
DSB
Figure 3 Fault Logic Diagram
COM
8
www.irf.com
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
www.irf.com
9
IR2238Q
PW in BRIN HIN LIN t on tr PWout HO (HOP=HON) LO (LOP=LON) BR 90% 10% t on1 HOQ LOQ t off tf 5V or 3.3V 50%
50%
90% 10%
50% 10%
50%
Figure 5 Switching Time Waveforms
3.3V or 5V
LIN
1,2,3
t
DSL 8V
DS
7V active
Soft Shutdown Driver Enable for all L.S. output
&
Hold Driver Enable for all H.S. output
t
LO
1,2,3
t SS
DESAT4
Hard Shutdown Driver Enable for all output
Figure 6.1 Low Side Desat Soft Shutdown Timing Waveform
10
www.irf.com
IR2238Q
HIN1 3.3V 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 DESAT2
HO1
t SS
active
Hard Shutdown Driver Enable for all output
Figure 6.2 High Side Desat Soft Shutdown Timing Waveform
BRIN
3.3V or 5V
t DS
DSB 8V tDESAT7
Hard Shutdown in effect
7V
BR tDESAT5, tDESAt6 HO1,2,3 LO1,2,3
Figure 6.3 Brake Desat Timing Waveform
Hard Shutdown in effect
www.irf.com
11
IR2238Q
HIN1,2,3
Blanking in effect
Blanking in effect Blanking in effect Blanking in effect
LIN1,2,3
DSH
8V
8V
DSL
8V
8V 8V 8V
DSB tFLTCLR FAULT t FLT,DESAT1 50%
tfault
t FLTCLR t FLT,DESAT2 50%
t FLTCLR t FLT,DESAT3 50%
t FLTCLR t FLT,DESAT4 50% t FLT,DSB
t FLTCLR 50% t FLT,DSB t DESAT5 90%
t FLTCLR 50%
t HO (HOP/HOQ/HON) 50%
t DESAT2
DESAT1
90% 50% t BL
SOFT SHUTDOWN
90% t BL
HARD SHUTDOWN
SOFT SHUTDOWN
t DESAT3 50% t BL
SOFT SHUTDOWN
t DESAT4 90% 50% t BL
SOFT SHUTDOWN
t DESAT6 90%
LO (LOP/LOQ/LON)
90%
t DESAT7 90%
t DESAT7 90%
BR
Figure 7 Desat Timing Diagram
12
www.irf.com
IR2238Q
HIN LIN
DTHoff DTLoff
90% HO (HOP=HOQ=HON) 10%
50% 50%
DT
90% LO (LOP=LOQ=LON)
50%
DT
50%
10%
Figure 8 Internal Deadtime Timing
VB1,2,3
DSH1,2,3
VS1,2,3
7V
8V
VB1,2,3
DSL1,2,3
VS1,2,3
8V
7V
t
90%
VFHL1,2,3
t VFHH1,2,3
10%
VFLL1,2,3
VCC
VFH1,2,3
VSS
t VFLH1,2,3
VCC
t
VFL1,2,3
VSS
90% 10%
Figure 9 Voltage Feedback Timing
www.irf.com
13
IR2238Q
SD
50%
50%
5V or 3.3V
t SD
t EN
15V HO (HOP=HOQ=HON) LO (LOP=LON=LOQ)
90% 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
www.irf.com
IR2238Q
Lead Definitions
Symbol
VCC VSS HIN1,2,3 LIN1,2,3 FAULT SD DT DSB BRIN BR COM VB1,2,3 HOP1,2,3 HOQ1,2,3 HON1,2,3 DSH1,2,3 VS1,2,3 LOP1,2,3 LON1,2,3 DSL1,2,3 VFH1,2,3 VFL1,2,3
NOTE: LD1-
Description
Low side supply voltage Logic Ground Logic inputs for high side gate driver outputs (HOP1,2,3/HON1,2,3, out of phase) 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 Deadtime programmable resistor pin Brake IGBT desaturation protection input and voltage feedback input Logic input for brake driver Brake driver output Low side drivers return High side gate drive floating supply 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 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
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.
www.irf.com
15
IR2238Q
Lead Assignments
DSH2
HON2
HOQ2
HOQ3
HON3
HOP2
HOP3
VB2
VS2
VB3
DSH3
VS3
5.3mm 5.3mm 51 50 49 48 47 46 45 52 3.5mm 53 (4.3mm)
44 43 42
5.0mm
41 40 39 38 37
36 35 34
3.5mm (4.3mm)
33 32
VCC LOP1 LOQ1 LON1 DSL1 LOP2 LOQ2 LON2 DSL2 LOP3 LOQ3 LON3 DSL3
31 30 29 28
VS1 DSH1 HON1 HOQ1 HOP1 VB1
54 55 56 57 58 59 60 61
MQFP64
27 26 25 24 23 22 21
4.5mm
62 63
DT
64 1
2
3
4
5
6
7
8
9
10 11
12 13 14 15 16 17
18 19
20
HIN1
HIN2
HIN3
LIN1
LIN2
FAULT
LIN3
VFH1
VFH2
VFH3
VFL1
VFL2
VFL3
BRIN
DSB
64 Lead MQFP
IR2238
16
VSS
COM
SD
BR
www.irf.com
IR2238Q
Case outline
64-Lead MQFP
01-6054 00 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


▲Up To Search▲   

 
Price & Availability of IR2238Q

All Rights Reserved © IC-ON-LINE 2003 - 2022  

[Add Bookmark] [Contact Us] [Link exchange] [Privacy policy]
Mirror Sites :  [www.datasheet.hk]   [www.maxim4u.com]  [www.ic-on-line.cn] [www.ic-on-line.com] [www.ic-on-line.net] [www.alldatasheet.com.cn] [www.gdcy.com]  [www.gdcy.net]


 . . . . .
  We use cookies to deliver the best possible web experience and assist with our advertising efforts. By continuing to use this site, you consent to the use of cookies. For more information on cookies, please take a look at our Privacy Policy. X