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參數(shù)資料
| 型號(hào)： | PTQA420025N2AD |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | 電源模塊 |
| 英文描述： | 1-OUTPUT 75 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | LEAD FREE, DIP-8 |
| 文件頁(yè)數(shù)： | 5/17頁(yè) |
| 文件大?。?/td> | 513K |
| 代理商： | PTQA420025N2AD |
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PTQA430xxxP
1 = Disable
VI
Q1
BSS138
2
3
VI
Remote
On/Off
t Time 100
s/div
Voltage
Undershoot
VO (1 V/div)
< 300 mV
Delay Time
VO (1 V/div)
II (1 A/div)
Q1 VGS (10 V/div)
t Time 5 ms/div
SLTS261B – MAY 2006 – REVISED NOVEMBER 2007
Figure 13. Recommended Control or Remote On/Off Input
Turn-On: With a valid input source voltage applied, the converter produces a regulated output voltage within 75
ms of the output being enabled. Figure 14 shows the output response of the PTQA430033P following the
removal of the logic-low signal from the Remote On/Off (pin 2); see Figure 13. This corresponds to the drop in
Q1 VGS in Figure 14. Although the rise-time of the output voltage is short (<10 ms), the indicated delay time will
vary depending upon the input voltage and the module’s internal timing. The waveforms were measured with 48
VDC input voltage, and a 10-A resistive load.
Turn-Off Time: When a valid input source is removed or if the Remote On/Off (pin 2) is used to disable the
output, with no external output capacitance, the module powers down within 200
s. Figure 15 shows that, during
power down, there is a small undershoot, typically less than 300 mV (or less than a diode drop). If used to supply
processor I/O voltages, the low undershoot ensures the parasitic diodes do not conduct current and potentially
cause damage to external circuitry.
Figure 14. Power Up
Figure 15. Power Down
Copyright 2006–2007, Texas Instruments Incorporated
13
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| PTQA420025N2AZ | 1-OUTPUT 75 W DC-DC REG PWR SUPPLY MODULE |
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| PTQA420025P2AZ | 1-OUTPUT 75 W DC-DC REG PWR SUPPLY MODULE |
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相關(guān)代理商/技術(shù)參數(shù) |
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| PTQA420025N2AS | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:100-W 48-V INPUT ISOLATED DC/DC CONVERTER |
| PTQA420025N2AZ | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:100-W 48-V INPUT ISOLATED DC/DC CONVERTER |
| PTQA420025P2AD | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:100-W 48-V INPUT ISOLATED DC/DC CONVERTER |
| PTQA420025P2AS | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:100-W 48-V INPUT ISOLATED DC/DC CONVERTER |
| PTQA420025P2AZ | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:100-W 48-V INPUT ISOLATED DC/DC CONVERTER |
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