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AAT4616IPS-1-T1

更新时间： 2024-02-05 07:51:59
品牌 Logo 应用领域
思佳讯 - SKYWORKS 驱动光电二极管接口集成电路驱动器
页数 文件大小 规格书
12页 1324K
描述
Buffer/Inverter Based Peripheral Driver, 1 Driver, 0.75A, PDSO8, TDFN-8

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AAT4616IPS-1-T1 技术参数

是否Rohs认证： 符合生命周期：Obsolete
包装说明：TDFN-8Reach Compliance Code：compliant
风险等级：5.64内置保护：OVER CURRENT; THERMAL; UNDER VOLTAGE
驱动器位数：1接口集成电路类型：BUFFER OR INVERTER BASED PERIPHERAL DRIVER
JESD-30 代码：S-PDSO-N8长度：2 mm
湿度敏感等级：1功能数量：1
端子数量：8最高工作温度：85 °C
最低工作温度：-40 °C输出电流流向：SOURCE
最大输出电流：1.6 A标称输出峰值电流：0.75 A
封装主体材料：PLASTIC/EPOXY封装代码：HVSON
封装等效代码：SOLCC8,.08,18封装形状：SQUARE
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
电源：5 V认证状态：Not Qualified
座面最大高度：0.85 mm子类别：Peripheral Drivers
最大供电电压：5.5 V最小供电电压：2.4 V
标称供电电压：5 V表面贴装：YES
温度等级：INDUSTRIAL端子形式：NO LEAD
端子节距：0.45 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED接通时间：7 µs
宽度：2 mmBase Number Matches：1

AAT4616IPS-1-T1 数据手册

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DATA SHEET • AAT4616 ULTRAHIGH PRECISION ADJUSTABLE CURRENT LIMITED LOAD SWITCH WITH FAULT FLAG  
Reverse  
Blocking  
OUT  
IN  
Over-Temperature  
Protection  
Under-Voltage  
Lockout  
4 ms  
Delay  
FLT  
ON/ON  
1.2  
Reference  
V
Current Limit  
Control  
SET  
GND  
tc41  
Figure 15. AAT4616 Functional Block Diagram  
typically occurs during device turn-on, but may also occur  
during a port hot plug-in event. The AAT4616 is ideally suited  
for protection of peripheral ports such as USB, RS232, and  
parallel ports.  
Functional Description  
The AAT4616 is a single-channel current-limit load switch that  
is intended to protect against short-circuit and over-current  
events by current limiting to a preset level. This device also  
provides a reverse current blocking feature, on/off enable  
control, and a fault flag to notify a system controller of an  
over-current, short-circuit, or over-temperature events.  
Figure 15 shows the functional block diagram.  
Reverse Current Blocking  
In the event of a load current exceeding a programmed current  
limit level (ILIM), a high-speed current limit loop limits the  
current in a microsecond and resets to low impedance once the  
short circuit condition is removed.  
The reverse current blocking feature prevents current flowing  
from OUT to IN when the device is disabled. When the device is  
enabled, the electrical characteristics between IN and OUT is  
still similar to an ideal switch, and current can flow in either  
direction.  
The AAT4616 is internally protected from thermal damage by an  
over-temperature detection circuit. If the die temperature  
reaches the internal thermal limit, the power device is switched  
off until the die temperature cools to a level below the thermal  
limit threshold. This device may operate in a thermal cycling  
state indefinitely or until the over-current condition is removed.  
Application Information  
Setting Current Limit  
The AAT4616 current limit can be set by an external resistor  
(RSET) connected from the SET pin to GND. RSET can be  
calculated by the following equation:  
The AAT4616 operates with input voltages ranging from 2.4 V to  
5.5 V which, along with its extremely low operating current,  
makes it ideal for battery-powered applications. In cases where  
the input voltage drops below 2.4 V, the AAT4616 MOSFET is  
protected from entering the saturated region of operation by  
being automatically shut down by the under-voltage lockout  
circuit.  
750mA  
RSET  
6k  
ILIM  
where ILIM is in mA and RSET in k.  
Table 5 summarizes resistor values for current limit settings.  
Use 1ꢀ tolerance metal film resistors for programming the  
desired current limit setting. Figure 16 shows the output current  
vs. output voltage with RSET equal to 6.04 k.  
Current limit or over-temperature conditions are reported by the  
open drain FAULT output. A 4 ms masking interval prevents  
false reporting during the charging of a capacitive load, which  
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com  
September 11, 2013 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201940E  
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