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ACS732KMATR-65AB-T

更新时间： 2024-02-16 00:21:42
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22页 2425K
描述
1 MHz Bandwidth, Galvanically Isolated Current Sensor IC in SOIC-16 Package

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ACS732KMATR-65AB-T 数据手册

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ACS732KMA and ACS733KMA  
1 MHz Bandwidth, Galvanically Isolated  
Current Sensor IC in SOIC-16 Package  
FEATURES AND BENEFITS  
DESCRIPTION  
• AEC-Q100 automotive qualified  
The ACS732KMA and ACS733KMA are a new generation  
of high bandwidth current sensor ICs from Allegro™. These  
• High bandwidth, 1 MHz analog output  
• Differential Hall sensing rejects common-mode fields  
• High-isolation SOIC16 wide body package provides  
galvanic isolation for high-voltage applications  
• Industry-leading noise performance with greatly  
improved bandwidth through proprietary amplifier and  
filter design  
• UL 60950-1 (ed. 2) and UL 62368 (ed. 1) certified  
□ Dielectric Strength Voltage = 4.8 kVRMS  
□ Basic Isolation Working Voltage = 1097 VRMS  
□ Reinforced Isolation Working Voltage = 550 VRMS  
• Fast and externally configurable overcurrent fault  
detection  
• 0.85 mΩ primary conductor resistance for low power loss  
and high inrush current withstand capability  
• Options for 3.3 V and 5 V single supply operation  
• Output voltage proportional to AC and DC current  
• Factory-trimmed sensitivity and quiescent output voltage  
for improved accuracy  
devices provide a compact, fast, and accurate solution for  
measuring high-frequency currents in DC/DC converters and  
otherswitchingpowerapplications.TheACS732andACS733  
offer high isolation, high bandwidth Hall-effect-based current  
sensing with user-configurable overcurrent fault detection.  
These features make them ideally suited for high-frequency  
transformerandcurrenttransformerreplacementinapplications  
running at high voltages.  
TheACS732andACS733aresuitableforallmarkets,including  
automotive, industrial, commercial, and communications  
systems. They may be used in motor control, load detection  
andmanagement,switch-modepowersupplies,andovercurrent  
fault protection applications.  
The wide body SOIC-16 package allows for easy  
implementation. Applied current flowing through the copper  
conductionpathgeneratesamagneticfieldthatissensedbythe  
IC and converted to a proportional voltage. Current is sensed  
differentially in order to reject external common-mode fields.  
Deviceaccuracyisoptimizedthroughthecloseproximityofthe  
magnetic field to the Hall transducers. A precise, proportional  
voltageisprovidedbytheHallIC,whichisfactory-programmed  
afterpackagingforhighaccuracy.Thefullyintegratedpackage  
hasaninternalcopperconductivepathwithatypicalresistance  
of 0.85 mΩ, providing low power loss.  
• Ratiometric output from supply voltage  
PACKAGE: 16-Pin SOICW (suffix MA)  
The current-carrying pins (pins 1 through 8) are electrically  
isolated from the sensor leads (pins 9 through 16). This allows  
the devices to be used in high-side current sensing applications  
without the use of high-side differential amplifiers or other  
costly isolation techniques.  
CB Certificate Number:  
US-32210-M3-UL  
US-36315-UL  
Not to scale  
Continued on next page...  
RPU  
CBYPASS  
1
16  
15  
14  
13  
12  
11  
10  
9
IP+  
IP+  
IP+  
IP+  
IP–  
IP–  
IP–  
IP–  
VOC  
VCC  
2
3
4
5
6
7
8
ACS733  
ACS732/ACS733 outputs  
an analog signal, VIOUT, that  
changes proportionally with  
the bidirectional AC or DC  
primary sensed current, IP,  
within the specified mea-  
surement range.  
VCC  
FAULT  
VIOUT  
GND  
IP  
CL  
GND  
The overcurrent threshold  
may be set with a resistor  
divider tied to the VOC pin.  
PROGRAM  
Figure 1: Typical Application Circuit  
October 7, 2020  
ACS732-33KMA-DS, Rev. 6  
MCO-0000589  
1234567...22

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