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MAX16913

更新时间： 2024-09-15 11:18:23
品牌 Logo 应用领域
美信 - MAXIM 开关放大器
页数 文件大小 规格书
10页 128K
描述
Remote Antenna Current-Sense Amplifier and Switches

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MAX16913 数据手册

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19-4186; Rev 0; 7/08  
Remote Antenna Current-Sense  
Amplifier and Switches  
/MX6913A  
General Description  
Features  
♦ Switch Phantom Power-On/-Off Under µC Control  
♦ Analog Current Measurement Output  
The MAX16913/MAX16913A high-voltage high-side  
current-sense switches feature internal current limiting  
to prevent system damage due to fault conditions. The  
MAX16913/MAX16913A input voltage range extends  
from 5V to 18V, making them ideal for providing phan-  
tom power to remote radio-frequency low-noise ampli-  
fiers (LNAs) in automotive applications.  
♦ Adjustable Current Limiting (340mA Maximum)  
♦ Detect Open-Load and Short-Circuit Conditions  
♦ Provide Open-Drain Fault Signals (SC and OL)  
♦ Overcurrent Blanking During Startup  
The MAX16913/MAX16913A monitor the load current  
and provide an analog output voltage proportional to  
the sensed load current. In addition to current sensing,  
accurate internal current-limiting circuitry protects the  
input supply against both overload and short-circuit  
conditions. Two open-drain fault indicator outputs notify  
the microprocessor when a short circuit, an open-load  
condition, or a short-to-battery condition exists. For the  
MAX16913A, the open-load threshold is externally  
adjustable using a resistive divider.  
♦ Thermal Shutdown  
♦ AEC-Q100 Qualified (/V Versions Only)  
♦ -40°C to +105°C Operating Temperature Range  
Typical Operating Circuits  
A fault-blanking feature enables the circuit to ignore  
momentary faults, such as those caused by the initial  
charging of a capacitive load when hot swapping,  
preventing false alarms to the system. Built-in thermal-  
overload protection turns off the switch when the die  
temperature exceeds +150°C (min). The MAX16913/  
MAX16913A also feature a short-to-battery detection  
every time the internal switch turns on. These devices  
provide an active-high control input to put the devices  
in low-power shutdown mode.  
TO  
BATTERY  
PROTECTED  
INPUT  
LOAD (LNA)  
IN  
SENS OUT  
REF  
3.3V TO 5V  
MAX16913  
OLT  
The MAX16913/MAX16913A are available in the 16-pin  
QSOP package and operate over the -40°C to +105°C  
temperature range.  
SC  
OL  
SHDN  
TO ADC INPUT  
AOUT  
Applications  
GND  
Remote LNA Phantom Power  
Automotive Safety and Infotainment  
TO  
BATTERY  
INPUT  
PROTECTED  
LOAD (LNA)  
Ordering Information  
IN  
SENS OUT  
TEMP  
PIN-  
OPEN-LOAD  
REF  
PART  
RANGE PACKAGE THRESHOLD  
3.3V TO 5V  
-40°C to  
+105°C  
MAX16913GEE+  
MAX16913GEE/V+*  
MAX16913AGEE+  
MAX16913AGEE/V+*  
16 QSOP  
16 QSOP  
16 QSOP  
16 QSOP  
Internally Set  
Internally Set  
MAX16913A  
OLT  
-40°C to  
+105°C  
SC  
-40°C to  
+105°C  
Externally  
Adjustable  
OL  
SHDN  
TO ADC INPUT  
AOUT  
GND  
-40°C to  
+105°C  
Externally  
Adjustable  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
*/V denotes an automotive qualified part.  
Pin Configuration appears at end of data sheet.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  
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