参数资料
| 型号： | ADP199CB-EVALZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 12/16页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR ADP199 |
| 标准包装： | 1 |
| 系列： | * |
ADP199
APPLICATIONS INFORMATION
GROUND CURRENT
1.4
Data Sheet
The major source for ground current in the ADP199 is the internal
charge pump for the FET drive circuitry. Figure 30 shows the
typical ground current when V EN = V IN , and varies from 1.1 V
to 3.6 V.
50
5mA
1.2
1.0
0.8
V OUT AT 1.2V
45
40
10mA
50mA
100mA
200mA
500mA
0.6
0.4
35
0.2
30
25
0
0.30
0.35
0.40
0.45
0.50
0.55
0.60
0.65
0.70
20
15
10
5
ENABLE VOLTAGE (V)
Figure 32. Typical EN Operation, V IN = 1.2 V
As shown in Figure 31, the EN pin has hysteresis built into it.
This prevents on/off oscillations that can occur due to noise on
0
0.8
1.2
1.6
2.0
2.4
2.8
3.2
3.6
the EN pin as it passes through the threshold points.
V IN (V)
Figure 30. Ground Current vs. Input Voltage, Different Load Current
ENABLE FEATURE
The EN pin active/inactive thresholds derive from the V IN voltage;
therefore, these thresholds vary with the changing input voltage.
the input voltage varies from 1.1 V to 3.6 V.
The ADP199 uses the EN input to enable and disable the V OUT
output. As shown in Figure 31, when a rising voltage (V EN ) on
the EN pin crosses the active threshold, V OUT turns on. When
a falling voltage (V EN ) on the EN pin crosses the inactive
threshold, V OUT turns off.
3.5
V OUT AT 3.3V
3.0
2.5
2.0
1.5
1.0
EN RISE
EN FALL
2.5
0.5
2.0
1.5
0
1.0
1.5
2.0
2.5
3.0
3.5
1.0
0.5
INPUT VOLTAGE (V)
Figure 33. Typical EN Thresholds vs. Input Voltage (V IN )
TIMING
0
1.2
1.3 1.4 1.5 1.6 1.7 1.8 1.9
ENABLE VOLTAGE (V)
Figure 31. Typical EN Operation, V IN = 3.3 V
2.0
2.1
Turn-on delay is defined as the interval between the time that
V EN exceeds the rising threshold voltage and when V OUT rises to
~10% of its final value. The ADP199 includes circuitry that has a
typical 1 ms turn-on delay, and a controlled rise time to limit the
V IN inrush current. As shown in Figure 34 and Figure 35, the turn-
on delay is nearly independent of the input voltage.
Rev. A | Page 12 of 16
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADP2 | 制造商:HOFFMAN ENCLOSURES 功能描述:Literature Pocket;12x12 In;Thermoplastic;Dark Gray;Adhesive Backed 制造商:Pentair Technical Products / Hoffman 功能描述:ENCLOSURES ACCESSORIES 制造商:HOFFMAN ENCLOSURES 功能描述:ENCLOSURES, ACCESSORIES 制造商:Pentair Technical Products / Hoffman 功能描述:ENCLOSURES, ACCESSORIES; Accessory Type:Large Thermoplastic Data Pocket; For Use With:Concept Solid-Door Enclosures; Body Color:Grey; Enclosure Material:Plastic; Features:Cutout areas for easy access and visibility to contents ;RoHS Compliant: Yes |
| ADP-201 | 功能描述:THINERGY APPLICATION DEV KIT RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:THINERGY® 标准包装:1 系列:- 主要目的:数字电位器 嵌入式:- 已用 IC / 零件:AD5258 主要属性:- 次要属性:- 已供物品:板 相关产品:AD5258BRMZ1-ND - IC POT DGTL I2C1K 64P 10MSOPAD5258BRMZ10-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ100-ND - IC POT DGTL I2C 100K 64P 10MSOPAD5258BRMZ50-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ1-R7-ND - IC POT DGTL I2C 1K 64P 10MSOPAD5258BRMZ10-R7-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ50-R7-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ100-R7-ND - IC POT DGTL I2C 100K 64P 10MSOP |
| ADP-2-10 | 制造商:Mini-Circuits 功能描述:5 MHz - 1000 MHz RF/MICROWAVE COMBINER, 1.2 dB INSERTION LOSS |
| ADP2102 | 制造商:AD 制造商全称:Analog Devices 功能描述:600mA 3MHz Synchronous Step-Down DC-DC Converter |
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