CST5981C General Description/一般說明:
Using low power CMOS process, the CST5981C is designed for low power, high performance omnipolar detection hall-effect application, such as cover switch, contactless switch, solid state switch and lid close sensor etc battery operation. The hall IC integrated an on-chip hall voltage generator for magnetic sensing, a comparator that amplifiers the hall voltage, a Chopper amplifier, a Schmitt trigger to provide switching hysteresis for noise rejection,and a complementary output.
The total power consumption of CST5981C is typically less than 1.8uA at 1.8V power supply. CST5981C is designed to respond to alternating North and South poles. When the magnetic flux density (B) is larger than operate point (BOP),the output will be turned on (low), the output is held until the magnetic flux density (B) is lower than release point (BRP), then turn off (high).
The device is available in SOT553, SSOT23-3L,SOT23-3L and SIP3L Packages and is rated over the -40°C to 85°C. The all packages are RoHS and Green compliant.
CST5981C采用低功耗CMOS工藝，適用于低功耗、高性能的全向霍爾效應(yīng)檢測應(yīng)用，如蓋子開關(guān)、非接觸式開關(guān)、固態(tài)開關(guān)和蓋子關(guān)閉傳感器等電池操作。霍爾集成電路集成了一個用于磁感應(yīng)的片上霍爾電壓發(fā)生器、一個放大霍爾電壓的比較器、一個斬波放大器、一個為噪聲抑制提供開關(guān)滯后的施密特觸發(fā)器以及一個互補(bǔ)輸出。
CST5981C的總功耗通常在1.8V電源下小于1.8uA。CST5981C設(shè)計用于響應(yīng)南北極交替。當(dāng)磁通密度（B）大于操作點(diǎn)（BOP）時，輸出將開啟（低），保持輸出直到磁通密度（B）低于釋放點(diǎn)（BRP），然后關(guān)閉（高）。
該設(shè)備有SOT553、SSOT23-3L、SOT23-3L和SIP3L封裝，額定溫度超過-40°C至85°C。所有包裝均符合RoHS和綠色標(biāo)準(zhǔn)。
CST5981C Features/特性：
Input Voltage Range : 1.65V to 5.5V
Micro-power consumption ideal for battery power applications
Omniplar Operation, easy to use as output
Very high sensitivity hall sensor
Low Power CMOS process technology
Chopper stabilization amplifier stage
Magnetic Sensitivity (typical) BOP=±30Gauss, BRP=±20Gauss
Good RF noise immunity
No need pull-up resistor
Small Solution Size
RoHS & Green Compliant
SOT553, SSOT23-3L, SOT23-3L & SIP3L Packages
-40℃ to +85 ℃ Temperature Range
CST5981C Applications/應(yīng)用：
Cover switch in clam-shell cellular phones
Cover switch in Notebook, PC/PAD
Contact-less switch in consumer products
Solid State Switch
Handheld Wireless Handset Awake Switch
Lid close sensor for battery-powered devise
Magnet proximity sensor for reed switch replacement in low duty cycle applications
DV, DSC, and White Goods
CST5981C Ordering Information/訂購信息：
|
Part Number
|
BOP(Gauss)
|
BRP Gauss)
|
Package Type
|
Package Qty
|
Temperature
|
Eco Plan
|
|
CST5981CWRN
|
±30Gauss
|
±20Gauss
|
SOT553
|
7-in reel 3000pcs/reel
|
-40～85℃
|
Green
|
|
CST5981CSTRN
|
±30Gauss
|
±20Gauss
|
SOT23-3L
|
7-in reel 3000pcs/reel
|
-40～85℃
|
Green
|
|
CST5981CS2RN
|
±30Gauss
|
±20Gauss
|
SSOT23-3L
|
7-in reel 3000pcs/reel
|
-40～85℃
|
Green
|
|
CST5981CMRN
|
±30Gauss
|
±20Gauss
|
SIP-3L
|
1000pcs/Package
|
-40～85℃
|
RoHs
|
CST5981C Marking & Pin Assignment/標(biāo)記和引腳分配：
CST5981C Typical Application Circuit/典型應(yīng)用電路：
CST5981C Block Diagram/結(jié)構(gòu)框圖：
Business consulting
13823761625
Mail me