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參數(shù)資料
| 型號： | VLA500K-01R |
| 廠商： | POWEREX INC |
| 元件分類： | 模擬信號調理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, SMA21 |
| 封裝： | SIP-21/30 |
| 文件頁數(shù)： | 6/6頁 |
| 文件大?。?/td> | 288K |
| 代理商： | VLA500K-01R |
VLA500K-01R
Hybrid IC IGBT Gate Driver +
DC/DC Converter
Powerex, Inc., 200 E. Hillis Street, Youngwood, Pennsylvania 15697-1800 (724) 925-7272
Rev. 5/07
larger series gate resistor to slow the switching of
the IGBT, reduce noise, and limit turn-off transient
voltages. When RG is increased, the switching delay
time of the IGBT will also increase. If the delay becomes
long enough so that the voltage on the detect Pin 30 is
greater than VSC at the end of the ttrip delay the driv-
er will erroneously indicate that a short circuit has oc-
curred. To avoid this condition the VLA500K-01R has
provisions for extending the ttrip delay by connecting a
capacitor (Ctrip) between Pin 29 and VEE (Pins 21 and
22). A curve showing the effect of adding Ctrip on time
is given in the characteristic data section of this data
sheet. The waveform defining trip time (ttrip) is shown
in Figure 3. If ttrip is extended care must be exercised
not to exceed the short-circuit withstanding capability
of the IGBT module. Normally this will be satisfied for
Powerex NF and A-Series IGBT modules as long as the
total shut-down time does not exceed 10s.
Adjustment of Soft Shutdown Speed
As noted above the VLA500K-01R provides a soft turn-
off when a short circuit is detected in order to help limit
the transient voltage surge that occurs when large short
circuit currents are interrupted. The default shutdown
speed will work for most applications so adjustment is
usually not necessary. In this case CS can be omitted.
In some applications using large modules or parallel
connected devices it may be helpful to make the shut-
down even softer.
This can be accomplished by
connecting a capacitor (CS) at Pin 27. A curve showing
the effect of CS on short circuit fall time (t1, t2) is given
in the characteristic data section of this data sheet. The
waveform defining the fall time characteristics is shown
in Figure 3.
NO
START
IS
VCE > VSC
IS
VCE > VSC
IS
INPUT
SIGNAL
ON
SLOW SHUTDOWN
DISABLE OUTPUT
SET FAULT SIGNAL
WAIT ttimer
IS
INPUT
SIGNAL
OFF
YES
NO
DELAY
ttrip
YES
NO
CLEAR FAULT
SIGNAL
ENABLE OUTPUT
Figure 2. VLA500K-01R Desaturation Detector
10%
50%
-5V
90%
t1
10V
ttimer
ttrip
VO
(PIN 23)
FAULT SIGNAL
(PIN 28)
SHORT CIRCUIT
PROTECTION
TIMING
DIAGRAM
(PIN 30 OPEN)
t2
Figure 3. Adjustment of ttrip and Slow Shutdown Speed
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相關代理商/技術參數(shù) |
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| VLA502-01 | 功能描述:IC IGBT GATE DVR/DC-DC CONV 12A RoHS:是 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅動器 - 外部開關 系列:- 標準包裝:95 系列:- 配置:半橋 輸入類型:PWM 延遲時間:25ns 電流 - 峰:1.6A 配置數(shù):1 輸出數(shù):2 高端電壓 - 最大（自引導啟動）:118V 電源電壓:9 V ~ 14 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:8-SOIC 包裝:管件 產品目錄頁面:1282 (CN2011-ZH PDF) 其它名稱:*LM5104M*LM5104M/NOPBLM5104M |
| VLA502-01R | 制造商:ISAHAYA 制造商全稱:Isahaya Electronics Corporation 功能描述:Universal Gate Drive Prototype Board |
| VLA503 | 制造商:POWEREX 制造商全稱:Powerex Power Semiconductors 功能描述:Hybrid IC IGBT Gate Driver |
| VLA503-01 | 功能描述:IC IGBT GATE DRIVER INV/AC SERVO RoHS:是 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅動器 - 外部開關 系列:- 標準包裝:5 系列:- 配置:低端 輸入類型:非反相 延遲時間:600ns 電流 - 峰:12A 配置數(shù):1 輸出數(shù):1 高端電壓 - 最大（自引導啟動）:- 電源電壓:14.2 V ~ 15.8 V 工作溫度:-20°C ~ 60°C 安裝類型:通孔 封裝/外殼:21-SIP 模塊 供應商設備封裝:模塊 包裝:散裝 配用:BG2A-NF-ND - KIT DEV BOARD FOR IGBT 其它名稱:835-1063 |
| VLA503-01R | 制造商:ISAHAYA 制造商全稱:Isahaya Electronics Corporation 功能描述:DRIVER FOR IGBT MODULES |
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