参数资料
| 型号： | ADP195CP-EVALZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 10/12页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR ADP195ACPZ |
| 标准包装： | 1 |
| 系列： | * |
ADP195
APPLICATIONS INFORMATION
GROUND CURRENT
The major source for ground current in the ADP195 is an internal
4 MΩ pull-down on the enable pin. Figure 22 shows the typical
ground current when V EN = V IN and varies from 1.2 V to 3.6 V.
10
Data Sheet
ENABLE FEATURE
The ADP195 uses the EN pin to enable and disable the VOUT
when a rising voltage on V EN crosses the active threshold, V OUT
turns on. When a falling voltage on V EN crosses the inactive
8
V IN = 1.2V
V IN = 1.6V
V IN = 2.0V
V IN = 2.4V
V IN = 2.8V
V IN = 3.2V
V IN = 3.4V
V IN = 3.6V
threshold, V OUT turns off.
2.0
1.8
1.6
6
1.4
1.2
4
2
1.0
0.8
0.6
0.4
0
0
50
100
150
200
250
300
350
400
450
500
0.2
LOAD (mA)
Figure 22. Ground Current vs. Load Current
0
0
0.1
0.2
0.3
0.4
0.5
0.6 0.7
V EN (V)
0.8
0.9
1.0
1.1
1.2
V IN = 1.8V
V IN = 3.6V
As shown in Figure 23, an increase in quiescent current can occur
when V EN ≠ V IN . This is caused by the CMOS logic nature of the
level shift circuitry as it translates an V EN signal ≥ 1.2 V to a
logic high. This increase is a function of the V IN ? V EN delta.
16
V IN = 1.2V
V IN = 1.5V
14
V IN = 2.5V
12
10
Figure 24. Typical EN Operation
As shown in Figure 24, the EN pin has hysteresis built in. This
prevents on/off oscillations that can occur due to noise on the
EN pin as it passes through the threshold points.
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 1.2 V to 3.6 V.
1.15
8
1.05
6
0.95
4
2
0.85
0.75
EN ACTIV E
0
0
0.4
0.8
1.2
1.6 2.0
V EN (V)
2.4
2.8
3.2
3.6
0.65
0.55
E N INACTIVE
Figure 23. Typical Ground Current when V EN ≠ V IN
0.45
0.35
V IN (V)
Figure 25. Typical EN Thresholds vs. Input Voltage (V IN )
Rev. C | Page 10 of 12
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相关代理商/技术参数 |
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| ADP195-EVALZ | 功能描述:BOARD EVALUATION FOR ADP195 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:* 标准包装:1 系列:- 主要目的:电信，线路接口单元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要属性:T1/J1/E1 LIU 次要属性:- 已供物品:板，电源，线缆，CD 其它名称:82EBV2081 |
| ADP196 | 制造商:AD 制造商全称:Analog Devices 功能描述:5 V, 3 A, Logic Controlled High-Side Power Switch |
| ADP196ACBZ-01-R7 | 制造商:AD 制造商全称:Analog Devices 功能描述:5 V, 3 A, Logic Controlled High-Side Power Switch |
| ADP196ACBZ-R7 | 功能描述:电源开关 IC - 配电 RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
| ADP196ACPZN-01-R7 | 功能描述:电源开关 IC - 配电 RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5 |
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