- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377498 > IR21381Q (International Rectifier) 3-PHASE AC MOTOR CONTROLLER IC PDF資料下載
參數(shù)資料
| 型號： | IR21381Q |
| 廠商： | International Rectifier |
| 英文描述： | 3-PHASE AC MOTOR CONTROLLER IC |
| 中文描述： | 3相AC電機(jī)控制IC |
| 文件頁數(shù)： | 23/30頁 |
| 文件大小： | 1133K |
| 代理商： | IR21381Q |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁當(dāng)前第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁
IR22381Q
PBF
/IR21381Q
(
P
b
F
)
23
2
Sizing tips
2.1
Bootstrap supply
The V
BS1,2,3
voltage provides the supply to the high
side drivers circuitry of the IR22381/IR21381. V
BS
supply sit on top of the V
S
voltage and so it must be
floating.
The bootstrap method to generate V
BS
supply can
be used with IR22381/IR21381 high side drivers.
The bootstrap supply is formed by a diode and a
capacitor connected as in Figure 23.
I
o
I
Figure 23:
bootstrap supply schematic
This method has the advantage of being simple and
low cost but may force some limitations on duty-
cycle and on-time since they are limited by the
requirement to refresh the charge in the bootstrap
capacitor.
Proper capacitor choice can reduce drastically
these limitations.
Bootstrap capacitor sizing
To size the bootstrap capacitor, the first step is to
establish the minimum voltage drop (
V
BS
) that we
have to guarantee when the high side IGBT is on.
If
V
GEmin
is the minimum gate emitter voltage we
want to maintain, the voltage drop must be:
V
V
V
≤
under the condition:
>
GE
V
min
where
V
CC
is the IC voltage supply,
V
F
is bootstrap
diode forward voltage,
V
CEon
is emitter-collector
voltage of low side IGBT and
V
BSUV-
is the high-side
supply undervoltage negative going threshold.
CEon
V
GE
F
CC
BS
V
min
BSUV
V
Now we must consider the influencing factors
contributing V
BS
to decrease:
IGBT turn on required Gate charge (
Q
G
);
IGBT gate-source leakage current (
I
LK_GE
);
Floating section quiescent current (
I
QBS
);
Floating section leakage current (
I
LK
)
Bootstrap diode leakage current (
I
LK_DIODE
);
Desat diode bias when on (
I
DS-
)
Charge required by the internal level shifters
(
Q
LS
); typical 20nC
Bootstrap capacitor leakage current (
I
LK_CAP
);
High side on time (
T
HON
).
I
LK_CAP
is only relevant when using an electrolytic
capacitor and can be ignored if other types of
capacitors are used. It is strongly recommend using
at least one low ESR ceramic capacitor (paralleling
electrolytic and low ESR ceramic may result in an
efficient solution).
Then we have:
+
+
=
GE
LK
LS
G
TOT
I
Q
Q
Q
_
(
I
I
+
+
_
+
+
QBS
I
HON
T
DS
CAP
LK
DIODE
LK
LK
I
I
+
+
)
_
The minimum size of bootstrap capacitor is:
BS
TOT
V
BOOT
Q
C
=
min
An example follows:
using a 15A @ 100°C IGBT (GB15XP120K):
I
QBS
= 250 μA
I
LK
= 50 μA
Q
LS
= 20 nC;
Q
G
= 58 nC
(Q
ge
+Q
gc
Datasheet GB15XP120K);
I
LK_GE
= 250 nA
(Datasheet GB15XP120K);
I
LK_DIODE
= 100 μA (with reverse recovery time <100 ns);
I
LK_CAP
= 0
(neglected for ceramic capacitor);
I
DS-
= 150
μA
(see Static Electrical Charact.);
T
HON
= 100 μs.
And:
V
CC
= 18 V
V
F
= 1 V
V
CEonmax
= 2.5 V
V
GEmin
= 11.9 V
the maximum voltage drop
V
BS
becomes
≤
GE
F
CC
BS
V
V
V
V
min
(See Static Electrical Charact.);
(See Static Electrical Charact.);
=
CEon
V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IR22381QPBF | 3-PHASE AC MOTOR CONTROLLER IC |
| IR2152 | SELF-OSCILLATING HALF-BRIDGE DRIVER |
| IR2153 | SELF-OSCILLATING HALF-BRIDGE DRIVER |
| IR2153PBF | SELF-OSCILLATING HALF-BRIDGE DRIVER |
| IR2153SPBF | SELF-OSCILLATING HALF-BRIDGE DRIVER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IR21381QPBF | 功能描述:IC CTLR AC MOTOR 3PHASE 64-MQFP RoHS:是 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅(qū)動器 - 外部開關(guān) 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 配置:高端 輸入類型:非反相 延遲時間:200ns 電流 - 峰:250mA 配置數(shù):1 輸出數(shù):1 高端電壓 - 最大（自引導(dǎo)啟動）:600V 電源電壓:12 V ~ 20 V 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-DIP 包裝:管件 其它名稱:*IR2127 |
| IR2138QPBF | 功能描述:馬達(dá)/運(yùn)動/點火控制器和驅(qū)動器 600V 3Phs IGBT Drvr For AC Mtr Drv Apps RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| IR2151 | 功能描述:IC DRVR HALF BRDG SELF-OSC 8-DIP RoHS:否 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅(qū)動器 - 外部開關(guān) 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 配置:高端 輸入類型:非反相 延遲時間:200ns 電流 - 峰:250mA 配置數(shù):1 輸出數(shù):1 高端電壓 - 最大（自引導(dǎo)啟動）:600V 電源電壓:12 V ~ 20 V 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-DIP 包裝:管件 其它名稱:*IR2127 |
| IR2151PBF | 功能描述:功率驅(qū)動器IC RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| IR2151S | 功能描述:IC DRVR HALF BRDG SELF-OSC 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅(qū)動器 - 外部開關(guān) 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 配置:低端 輸入類型:非反相 延遲時間:40ns 電流 - 峰:9A 配置數(shù):1 輸出數(shù):1 高端電壓 - 最大（自引導(dǎo)啟動）:- 電源電壓:4.5 V ~ 35 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:TO-263-6，D²Pak（5 引線+接片），TO-263BA 供應(yīng)商設(shè)備封裝:TO-263 包裝:管件 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。