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| 型号： | ADP191ACBZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 10/16页 |
| 文件大小： | 0K |
| 描述： | IC CTLR HIGH LSIDE PWR SW 4WLCSP |
| 产品变化通告： | 8mm Carrier Tape Changes 28/Feb/2012 |
| 标准包装： | 1 |
| 类型： | 高端开关 |
| 导通状态电阻： | 105 毫欧 |
| 电源电压： | 1.1 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 4-WFBGA，WLCSP |
| 供应商设备封装： | 4-WLCSP（0.76x0.76） |
| 包装： | 标准包装 |
| 配用： | ADP191CB-EVALZ-ND - EVAL BOARD FOR ADP191 |
| 其它名称： | ADP191ACBZ-R7DKR |
ADP190/ADP191
APPLICATIONS INFORMATION
GROUND CURRENT
The major source for ground current in the ADP190 / ADP191 is
the 4 M? pull-down on the enable (EN) pin. Figure 19 shows
typical ground current when V EN = V IN and V IN varies from 1.1 V
to 3.6 V.
2.0
2.0
1.8
1.6
1.4
1.2
1.0
Data Sheet
1.8
V IN = 3.6V
0.8
0.6
1.6
1.4
V IN = 2.5V
0.4
0.2
0
1.2
0
0.1
0.2
0.3
0.4
0.5
0.6
V EN (V)
0.7
0.8
0.9
1.0
1.1
1.2
1.0
Figure 21. Typical EN Operation
0.8
0.6
0
50
100
V IN = 1.8V
V IN = 1.2V
150 200
LOAD (mA)
250
300
350
As shown in Figure 21, the EN pin has built-in hysteresis. 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 VIN
Figure 19. Ground Current vs. Load Current
As shown in Figure 20, an increase in ground 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 EN signal ≥ 1.1 V to
a logic high. This increase is a function of the V IN ? V EN delta.
voltage; therefore, these thresholds vary with changing input
voltage. Figure 22 shows typical EN active/inactive thresholds
when the input voltage varies from 1.1 V to 3.6 V.
1.15
1.05
14
0.95
12
10
8
V OUT = 3.6V
0.85
0.75
0.65
EN ACTIVE
EN INACTIVE
0.55
6
0.45
4
0.35
2
V OUT = 1.8V
0
0.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5
V EN (V)
Figure 20. Typical Ground Current when V EN ≠ V IN
ENABLE FEATURE
The ADP190 / ADP191 use the EN pin to enable and disable the
VOUT pin under normal operating conditions. As shown in
V IN (V)
Figure 22. Typical EN Pin Thresholds vs. Input Voltage, V IN
TIMING
Turn-on delay is defined as the delta between the time that EN
reaches >1.1 V until VOUT rises to ~10% of its final value. The
on delay at 3.6 V V IN to limit the V IN inrush current. As shown in
threshold, VOUT turns on. When a falling voltage on EN
crosses the inactive threshold, VOUT turns off.
Rev. E | Page 10 of 16
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADP191CB-EVALZ | 功能描述:EVAL BOARD FOR ADP191 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 |
| ADP194 | 制造商:AD 制造商全称:Analog Devices 功能描述:Logic Controlled, High-Side Power Switch Low RDSON of 80 mΩ at 1.8 V |
| ADP194ACBZ-R7 | 功能描述:IC POWER SWITCH HS LOGIC 4WLSCP RoHS:是 类别:集成电路 (IC) >> PMIC - MOSFET，电桥驱动器 - 内部开关 系列:- 标准包装:2,500 系列:- 类型:高端 输入类型:非反相 输出数:1 导通状态电阻:35 毫欧 电流 - 输出 / 通道:- 电流 - 峰值输出:3A 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) 其它名称:MIC2545A-1YTSTRMIC2545A-1YTSTR-ND |
| ADP194CB-EVALZ | 功能描述:BOARD EVAL FOR ADP194ACBZ 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 |
| ADP195 | 制造商:AD 制造商全称:Analog Devices 功能描述:Logic Controlled, High-Side Power Switch with Reverse Current Blocking |
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