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參數資料
| 型號： | UC3910N |
| 英文描述： | VERY LOW QUIESCENT CURRENT DUAL VOLTAGE REGULATOR |
| 中文描述： | D / A轉換 |
| 文件頁數： | 5/6頁 |
| 文件大?。?/td> | 247K |
| 代理商： | UC3910N |
UNITRODE CORPORATION
7 CONTINENTAL BLVD.
MERRIMACK, NH 03054
TEL. (603) 424-2410
FAX (603) 424-3460
value of R
F
such that it limits the current into VSENSE
to
≤
0.5mA.
R
F
C
F
=
1
F
SWITCH
10
2
π
R
F
≥
V
OUT
0.5mA
The Overvoltage Protection output, OVP can be used
to directly drive a crowbarring SCR, as shown in Figure
3.
A typical application is shown in Figure 4 using the
UC3910 together with the UC3886 Average Current
Mode PWM Controller IC for a power supply to drive In-
tel’s PentiumPro processor.
-15
-10
-5
0
5
10
15
20
25
30
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Ratio R
DIV
T
UV
OV
OVP
Figure 2. OV, UV and OVP Percentage Thresholds as a
Function of the Divider Ratio R
DIV
UC1910
UC2910
UC3910
Figure 3. Driving and SCR Using the UC3910 OVP
Signal
Figure 4. UC3910 Configured with the UC3886 for a Pentium Pro DC/DC Converter
APPLICATION INFORMATION (cont.)
UDG-96021
UDG-96019
5
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相關代理商/技術參數 |
參數描述 |
|---|---|
| UC3910NG4 | 功能描述:基準電壓& 基準電流 4-Bit DAC Voltage Monitor RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| UC3914 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:5V to 35V Hot Swap Power Manager |
| UC3914D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Power Control/Management |
| UC3914DW | 功能描述:熱插拔功率分布 5-35V Single Commercial Temp. RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| UC3914DWG4 | 功能描述:熱插拔功率分布 5-35V Single Commercial Temp. RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
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