参数资料
| 型号： | ADP199CB-EVALZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 13/16页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR ADP199 |
| 标准包装： | 1 |
| 系列： | * |
Data Sheet
1
V EN
ADP199
V EN
OUTPUT VOLTAGE
1
OUTPUT VOLTAGE
2
2
INPUT CURRENT
INPUT CURRENT
3
3
CH1 1V
W
B
CH3 20mA ? BW
CH2 500mV BW M10μs
T 10%
A CH1
100mV
CH1 1V BW
CH3 500mA ?
B
W
CH2 500mV
B
W M40μs
T 10.4%
A CH1
700mV
Figure 34. Typical Turn-On Delay Time with V IN = 1.2 V,
I LOAD = 10 mA, C LOAD = 1 μF
V EN
Figure 36. Typical Rise Time and Inrush Current,
C LOAD = 100 μF, V IN = 1.2 V, I LOAD = 100 mA
V EN
OUTPUT VOLTAGE
1
2
OUTPUT VOLTAGE
1
2
3
INPUT CURRENT
3
INPUT CURRENT
CH1 2V BW
CH3 200mA ?
BW
CH2 1V
BW
M4μs
T 10%
A CH1
1.28mV
CH1 2V BW
CH3 2A ? BW
CH2 1V
B
W
M40μs
T 10.4%
A CH1
720mV
Figure 35. Typical Turn-On Delay Time with V IN = 3.6 V,
I LOAD = 10 mA, C LOAD = 1 μF
The rise time is defined as the time it takes the output voltage to
rise from 10% to 90% of V OUT reaching its final value. It is depen-
dent on the rise time of the internal charge pump.
For very large values of output capacitance, the RC time constant
(where C is the load capacitance (C LOAD ) and R is the RDS ON ||R LOAD )
can become a factor in the rise time of the output voltage. Because
RDS ON is much smaller than R LOAD , an adequate approximation
for RC is RDS ON × C LOAD . An input or load capacitor is not required
for the ADP199 although capacitors can be used to suppress
noise on the board.
Figure 37. Typical Rise Time and Inrush Current,
C LOAD = 100 μF, V IN = 3.6 V, I LOAD =100 mA
The turn-off time is defined as the time it takes for the output
voltage to fall from 90% to 10% of V OUT reaching its final value.
The turn-off time is also dependent on the RC time constant of
the output capacitance and load resistance. Figure 38 shows the
typical turn-off time with V IN = 1.8 V, C OUT = 1 μF, and R LOAD =
18 Ω.
ENABLE VOLTAGE V EN
2
INPUT CURRENT
1
CH1 500mV
BW
CH2 1V
BW
M20μs
A CH2
660mV
T 10.2%
Figure 38. Typical Turn-Off Time
Rev. A | Page 13 of 16
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相关代理商/技术参数 |
参数描述 |
|---|---|
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