- 您现在的位置：买卖IC网 > PDF目录377498 > IR21381Q (International Rectifier) 3-PHASE AC MOTOR CONTROLLER IC PDF资料下载
参数资料
| 型号： | IR21381Q |
| 厂商： | International Rectifier |
| 英文描述： | 3-PHASE AC MOTOR CONTROLLER IC |
| 中文描述： | 3相AC电机控制IC |
| 文件页数： | 24/30页 |
| 文件大小： | 1133K |
| 代理商： | IR21381Q |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页当前第24页第25页第26页第27页第28页第29页第30页
IR22381Q
PBF
/IR21381Q
(
P
b
F
)
24
V
V
V
V
V
6
5
9
11
1
18
=
=
And the bootstrap capacitor must be:
nF
V
nC
C
BOOT
51
6
133
=
≥
NOTICE:
Here above
V
CC
has been chosen to
be 18V as an example. IGBTs can be supplied
with higher/lower supply accordingly to design
requirements. Vcc variations due to low voltage
power supply must be accounted in the above
formulas.
Some important considerations
a. Voltage ripple
There are three different cases making the
bootstrap circuit get conductive (see Figure 23)
I
LOAD
< 0; the load current flows in the low side
IGBT displaying relevant V
CEon
V
V
=
In this case we have the lowest value for V
BS
.
This represents the worst case for the bootstrap
capacitor sizing. When the IGBT is turned off the
Vs node is pushed up by the load current until the
high side freewheeling diode get forwarded
biased
I
LOAD
= 0; the IGBT is not loaded while being
on and V
CE
can be neglected
V
V
=
I
LOAD
> 0; the load current flows through the
freewheeling diode
V
V
=
In this case we have the highest value for V
BS
.
Turning on the high side IGBT, I
LOAD
flows into it
and V
S
is pulled up.
To minimize the risk of undervoltage, bootstrap
capacitor should be sized according to the I
LOAD
<0
case.
b. Bootstrap Resistor
A resistor (R
boot
) is placed in series with bootstrap
diode (see Figure 23) so to limit the current when
the bootstrap capacitor is initially charged. We
suggest not exceeding some Ohms (typically 5,
maximum 10 Ohm) to avoid increasing the V
BS
time-
CEon
V
F
CC
BS
V
F
CC
BS
V
FP
F
CC
BS
V
V
+
constant. The minimum on time for charging the
bootstrap capacitor or for refreshing its charge must
be verified against this time-constant.
c. Bootstrap Capacitor
For high
T
HON
designs where is used an electrolytic
tank capacitor, its ESR must be considered. This
parasitic resistance forms a voltage divider with
R
boot
generating a voltage step on V
BS
at the first
charge of bootstrap capacitor. The voltage step and
the related speed (dV
BS
/dt) should be limited. As a
general rule, ESR should meet the following
constraint:
ESR
+
Parallel combination of small ceramic and large
electrolytic
capacitors
compromise, the first acting as fast charge thank for
the gate charge only and limiting the dV
BS
/dt by
reducing the equivalent resistance while the second
keeps the V
BS
voltage drop inside the desired
V
BS
.
d. Bootstrap Diode
The diode must have a BV> 600V (or 1200V
depending on application) and a fast recovery time
(trr < 100 ns) to minimize the amount of charge fed
back from the bootstrap capacitor to V
CC
supply.
V
V
R
ESR
CC
BOOT
3
≤
is
normally
the
best
2.2
Gate resistances
The switching speed of the output transistor can be
controlled by properly size the resistors controlling
the turn-on and turn-off gate current. The following
section provides some basic rules for sizing the
resistors to obtain the desired switching time and
speed by introducing the equivalent output
resistance of the gate driver (
R
DRp
and
R
DRn
).
The examples always use IGBT power transistor.
Figure 24 shows the nomenclature used in the
following paragraphs. In addition, V
ge
plateau voltage,
Q
gc
and
Q
ge
indicate the gate to
collector and gate to emitter charge respectively.
*
indicates the
相关PDF资料 |
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 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IR21381QPBF | 功能描述:IC CTLR AC MOTOR 3PHASE 64-MQFP RoHS:是 类别:集成电路 (IC) >> PMIC - MOSFET，电桥驱动器 - 外部开关 系列:- 标准包装:50 系列:- 配置:高端 输入类型:非反相 延迟时间:200ns 电流 - 峰:250mA 配置数:1 输出数:1 高端电压 - 最大（自引导启动）:600V 电源电压:12 V ~ 20 V 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-DIP 包装:管件 其它名称:*IR2127 |
| IR2138QPBF | 功能描述:马达/运动/点火控制器和驱动器 600V 3Phs IGBT Drvr For AC Mtr Drv Apps RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| IR2151 | 功能描述:IC DRVR HALF BRDG SELF-OSC 8-DIP RoHS:否 类别:集成电路 (IC) >> PMIC - MOSFET，电桥驱动器 - 外部开关 系列:- 标准包装:50 系列:- 配置:高端 输入类型:非反相 延迟时间:200ns 电流 - 峰:250mA 配置数:1 输出数:1 高端电压 - 最大（自引导启动）:600V 电源电压:12 V ~ 20 V 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-DIP 包装:管件 其它名称:*IR2127 |
| IR2151PBF | 功能描述:功率驱动器IC RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| IR2151S | 功能描述:IC DRVR HALF BRDG SELF-OSC 8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - MOSFET，电桥驱动器 - 外部开关 系列:- 标准包装:50 系列:- 配置:低端 输入类型:非反相 延迟时间:40ns 电流 - 峰:9A 配置数:1 输出数:1 高端电压 - 最大（自引导启动）:- 电源电压:4.5 V ~ 35 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:TO-263-6，D²Pak（5 引线+接片），TO-263BA 供应商设备封装:TO-263 包装:管件 |
发布紧急采购，3分钟左右您将得到回复。