DataSheet.jp

ACS722KMA PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 ACS722KMA
部品説明 Hall-effect Based Current Sensor IC
メーカ Allegro
ロゴ Allegro ロゴ 



Total 17 pages
		

No Preview Available !

ACS722KMA Datasheet, ACS722KMA PDF,ピン配置, 機能
ACS722KMA
High Accuracy, Hall-effect Based Current Sensor
IC in High Isolation SOIC16 Package
FEATURES AND BENEFITS
• Patented integrated digital temperature compensation
circuitry allows for near closed loop accuracy over
temperature in an open loop sensor
• UL60950-1 (ed. 2) certified
□Dielectric Strength Voltage = 4.8 kVrms
□Basic Isolation Working Voltage = 1097 Vrms
□Reinforced Isolation Working Voltage = 565 Vrms
• Industry-leading noise performance with greatly
improved bandwidth through proprietary amplifier and
filter design techniques
• Pin-selectable band width: 80 kHz for high bandwidth
applications or 20 kHz for low noise performance
0.85 mΩ primary conductor resistance for low power
loss and high inrush current withstand capability
• Low-profile SOIC16 package suitable for space-
constrained applications
• 3 to 3.6 V, single supply operation
• Output voltage proportional to AC or DC current
• Factory-trimmed sensitivity and quiescent output voltage
for improved accuracy
Continued on the next page…
TÜV America
Tytpeested Certificate Number:
U8V 14 11 54214 030
CB 14 11 54214 029
CB Certificate Number:
US-22339-A1-UL
Package: 16-pin SOICW (suffix MA)
DESCRIPTION
The AllegroACS722 current sensor IC is an economical and
precise solution for AC or DC current sensing in industrial,
commercial, and communication systems. The small package
is ideal for space constrained applications while also saving
costs due to reduced board area. Typical applications include
motor control, load detection and management, switched-mode
power supplies, and overcurrent fault protection.
The device consists of a precise, low-offset, linear Hall
sensor circuit with a copper conduction path located near the
surface of the die. Applied current flowing through this copper
conduction path generates a magnetic field which is sensed by
the integrated Hall IC and converted into a proportional voltage.
Device accuracy is optimized through the close proximity of the
magnetic field to the Hall transducer. A precise, proportional
voltage is provided by the low-offset, chopper-stabilized
BiCMOS Hall IC, which includes Allegro’s patented digital
temperature compensation, resulting in extremely accurate
performance over temperature. The output of the device has
a positive slope when an increasing current flows through the
primary copper conduction path (from pins 1 through 4, to pins
5 through 8), which is the path used for current sensing. The
internal resistance of this conductive path is 0.85 mΩ typical,
providing low power loss.
The terminals of the conductive path are electrically isolated
from the sensor leads (pins 9 through 16). This allows the
ACS722 current sensor IC to be used in high-side current sense
applications without the use of high-side differential amplifiers
or other costly isolation techniques.
Continued on the next page…
ACS722-DS, Rev 1
Approximate Scale 1:1
+IP
1
2
IP+
3 IP+
ACS722
16
NC
15
GND
IP+ 14
4 NC
IP+
BW_SEL 13
IP 12
VIOUT
5
6
IP–
–IP 7 IP–
IP–
8
IP–
11
NC
10
VCC
9
NC
Typical Application
The ACS722 outputs an
analog signal, VIOUT , that
changes, proportionally, with
the bidirectional AC or DC
primary sensed current, IP ,
within the specified measure-
ment range. The BW_SEL pin
can be used to select one of
CL the two bandwidths to opti-
mize the noise performance.
Grounding the BW_SEL pin
C BYPASS
0.1 mF
puts the part in the high
bandwidth (80 kHz) mode.

1 Page





ページ 合計 : 17 ページ
PDF
ダウンロード
[ ACS722KMA.PDF ]

共有リンク

Link :

おすすめデータシート

部品番号部品説明メーカ
ACS722KMA

Hall-effect Based Current Sensor IC

Allegro
Allegro

www.DataSheet.jp    |   2019   |  メール    |   最新    |   Sitemap