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參數資料
| 型號： | IRPT5051A |
| 文件頁數： | 11/12頁 |
| 文件大小： | 433K |
| 代理商： | IRPT5051A |
IRPT5051
page 11
The ‘lower’ bus capacitor is discharged by a 10K resistor until
its voltage reaches approximately 80V. Thereafter, discharge of
the ‘lower’ capacitor is via a 110k resistor.
Undervoltage
The undervoltage circuit monitors the voltage of the local
gate driver power supply and sends a high input signal during
undervoltage which sets the latch and inhibits the PWM input
signals.
This signal, brought out on pin 18 of CN5, is high during un-
dervoltage. After it has gone low during power-up, a 15V
RESET signal must be applied to reset the latch and allow the
PWM input signals to pass to the gate drive circuits.
PWM input signals must be 15V positive logic. They must
source 10mA into the opto-isolators of the IGBT gate driver cir-
cuits.
When inhibited by the internal PWM gate during power up,
power down and fault conditions, each PWM input signal be-
comes loaded by a 720 Ohm resistor.
Maximum rise and fall times of the PWM input signals should
be 150 nsecs.
Minimum dead time between outgoing and incoming PWM
signals to the IGBTs in a given inverter leg should be 2.5μsecs.
This is necessary to avoid inverter shoot-through.
The minimum duration of any PWM input pulse should be
1μsec.
Typical propagation delay between the PWM input and drive
output at the gate of the IGBT is 300ns.
Bootstrap Supplies for the Gate Drive Circuits
The gate drive circuits for the upper IGBTs are powered
from floating bootstrap capacitors. Each bootstrap capacitor is
Functional Information
Part Number Identification and Ordering Instructions
IRPT5051A Power Assembly
IMS assembly incorporating 1600V input rectifiers in D
2
Paks,
1200V ultra-fast IGBT inverter with ultra-fast freewheeling di-
odes in SMD10 packages, along with a temperature sensing
thermistor. The assembly is fully tested to meet all data sheet
specifications.
IRPT5051C Complete
POW
IR
TRAIN
Power Assembly (IRPT5051A) and Driver-
Plus
Board
(IRPT5051D) pre-assembled and tested to meet all system speci-
fications.
Capacitor Precharge
When the input line voltage is first switched on, the charging
current of the dc bus capacitors is limited by a 100 Ohm pre-
charge resistor. When the bus capacitor has charged to
approximately 85% of the peak line voltage, the capacitor pre-
charge control circuit energizes the relay K1, bypassing the 100
pre-charge resistor, so long as the line voltage exceeds 300V rms
and all three input phase voltages are present.
The relay feedback signal, K1FB is the voltage across the re-
lay coil. This is 15V high when the relay is energized, and low
when the relay is de-energized.
At start-up, the input PWM signals should be inhibited exter-
nally until K1FB becomes high, since if the inverter is operated
before the pre-charge resistor is bypassed, this resistor will be
overloaded.
The relay will drop out during operation if the dc bus voltage
falls to less than 82% of the peak line voltage; if one or more in-
put line voltages is lost; or if the input voltage falls below 300V.
K1FB then becomes low and the PWM input signals should be
inhibited externally to avoid overloading the pre-charge resistor.
The BUS RIPPLE feedback signal is high when the relay is
de-energized, and low when it is energized. If one of the input
phases is lost, the relay drops out and the BUS RIPPLE signal
oscillates from high to low at line frequency.
The relay can be energized, if required, during single-phase
operation by pulling down the SFT CHG terminal via an external
open-collector transistor. The pull-down current is 2mA.
Discharging the Bus Capacitors
When the input power is switched off, the ‘top’ bus capacitor
is discharged by a 10k resistor.
IRPT5051D Driver-
Plus
Board
Printed circuit board assembled with DC link capacitors, relay
in-rush circuit, high power terminal blocks, surge suppression
MOVs, IGBT gate drivers, protection circuitry and low power
supply. The PCB is functionally tested with standard power as-
sembly to meet all system specifications.
IRPT5051E Design Kit
Complete
POW
IR
TRAIN
(IRPT5051C) with full set of design
documentation, including schematic diagram. bill of material,
mechanical layout, schematic file, Gerber files and design tips.
相關PDF資料 |
PDF描述 |
|---|---|
| IRPT5051 | Integrated Power Stage for 11kW Motor Drives(11kW 馬達驅動器的集成功率單元) |
| IRSF3010S | TRANSISTOR | MOSFET | N-CHANNEL | 50V V(BR)DSS | 11A I(D) | TO-263AA |
| IRSF3011F | TRANSISTOR | MOSFET | N-CHANNEL | 50V V(BR)DSS | 5A I(D) | TO-220VAR |
| IRSF3011L | TRANSISTOR | MOSFET | N-CHANNEL | 50V V(BR)DSS | SOT-223 |
| IRSF3011S | TRANSISTOR | MOSFET | N-CHANNEL | 50V V(BR)DSS | 5A I(D) | TO-252VAR |
相關代理商/技術參數 |
參數描述 |
|---|---|
| IRPT5051C | 制造商:IRF 制造商全稱:International Rectifier 功能描述:Integrated Power Stage for 15 hp Motor Drives |
| IRPT5051D | 制造商:IRF 制造商全稱:International Rectifier 功能描述:Integrated Power Stage for 15 hp Motor Drives |
| IRPT5051E | 制造商:IRF 制造商全稱:International Rectifier 功能描述:Integrated Power Stage for 15 hp Motor Drives |
| IRQ-12/8.3-T110N-C | 功能描述:DC DC CONVERTER 12V 100W 制造商:murata power solutions inc. 系列:IRQ 包裝:托盤 零件狀態:在售 類型:隔離模塊 輸出數:1 電壓 - 輸入（最小值）:57.6V 電壓 - 輸入（最大值）:160V 電壓 - 輸出 1:12V 電壓 - 輸出 2:- 電壓 - 輸出 3:- 電流 - 輸出（最大值）:8.3A 功率（W）:100W 電壓 - 隔離:3kV 應用:ITE（商業），鐵路 特性:遠程開/關，OCP，OTP，OVP，SCP，UVLO 工作溫度:-40°C ~ 85°C 效率:87.4% 安裝類型:通孔 封裝/外殼:四分之一磚 大小/尺寸:2.28" 長 x 1.45" 寬 x 0.50" 高（57.9mm x 36.8mm x 12.7mm） 供應商器件封裝:- 控制特性:使能，低電平有效 標準包裝:30 |
| IRQ-12/8.3-T110NF-C | 功能描述:DC DC CONVERTER 12V 100W 制造商:murata power solutions inc. 系列:IRQ 包裝:托盤 零件狀態:在售 類型:隔離模塊 輸出數:1 電壓 - 輸入（最小值）:57.6V 電壓 - 輸入（最大值）:160V 電壓 - 輸出 1:12V 電壓 - 輸出 2:- 電壓 - 輸出 3:- 電流 - 輸出（最大值）:8.3A 功率（W）:100W 電壓 - 隔離:3kV 應用:ITE（商業），鐵路 特性:遠程開/關，OCP，OTP，OVP，SCP，UVLO 工作溫度:-40°C ~ 85°C 效率:87.4% 安裝類型:通孔 封裝/外殼:四分之一磚 大小/尺寸:2.28" 長 x 1.45" 寬 x 0.50" 高（57.9mm x 36.8mm x 12.7mm） 供應商器件封裝:- 控制特性:使能，低電平有效 標準包裝:30 |
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