參數(shù)資料
型號(hào)： MAX9921AUB+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 5/16頁(yè)
文件大小： 0K
描述： IC SENSOR HALL EFFECT 10-MSOP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
類(lèi)型： 霍爾效應(yīng)傳感器
輸入類(lèi)型： 電壓
輸出類(lèi)型： 邏輯
接口： 2 線
電流 - 電源： 1.3mA
安裝類(lèi)型： 表面貼裝
封裝/外殼： 10-TFSOP，10-MSOP（0.118"，3.00mm 寬）
供應(yīng)商設(shè)備封裝： 10-µMAX
包裝： 帶卷 (TR)
MAX9921
Dual, 2-Wire Hall-Effect Sensor Interface
with Diagnostics
______________________________________________________________________________________
13
14V
VIN_
IIN_
0V
VBAT - 500mV
8V
4mA/
s
11.5mA
0A
TIME
HALL INPUT
RECONNECTED
TO HALL SENSOR
Figure 5. Hall Input Re-Energized When Open Input is Reconnected to Hall Sensor
MAX9921 ACTIONS
FAULT
DESCRIPTION
CRITERION
ERR
OUTPUT
HALL INPUT RESPONSE
COMMENT/RECOVERY
VBAT < 6V
—
Asserted low
Shutoff current to both Hall
sensors
Both IN1 and IN2 are restarted with blanking
cycle when VBAT returns to proper range.
VBAT > 18V
—
Asserted low
Shutoff current to both Hall
sensors
Both IN1 and IN2 are restarted with blanking
cycle when VBAT returns to proper range.
Hall input open
IIN < 2mA
Asserted low
Shutoff current to
corresponding Hall sensor
When a Hall input is again loaded, terminating
open input condition, the Hall input are restarted
with blanking cycle.
Hall input shorted
to battery
VIN > VBAT due
to external
reverse-battery
protection
diode
Asserted low
Shutoff current to
corresponding Hall sensor
If a Hall input is pulled more than 1V above
VBAT, the input may back drive current into the
BAT supply and pull VBAT up with it. In this
condition, current levels in the Hall inputs should
never exceed 100mA. For this reason, it is
recommended that one or more MAX9921s be
powered together and share a reverse-polarity
diode separate from other circuitry.
Hall input shorted
to ground
IIN > 23mA
Asserted low
Shutoff current to
corresponding Hall sensor.
50A of pullup current is
sourced to IN1 or IN2 to
aid in troubleshooting.
A falling edge at DIAG initiates a restart with a
blanking cycle of any Hall input that has been
shut off due to a short to ground. See the Hall
Input Short-to-Ground section.
Table 3. Summary of Fault Protection and Recovery
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參數(shù)描述
MAX9921EVKIT+ 功能描述:界面開(kāi)發(fā)工具 MAX9921 Eval Kit RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類(lèi)型:RS-485 工具用于評(píng)估:ADM3485E 接口類(lèi)型:RS-485 工作電源電壓:3.3 V
MAX9922ABT+T 制造商:Maxim Integrated Products 功能描述:ULTRA-PRECISION, HIGH-SIDE CURRENT-SENSE AMPLIFIERS - Tape and Reel
MAX9922AUB+ 功能描述:電流靈敏放大器 Current-Sense Amplifier RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補(bǔ)償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel
MAX9922AUB+T 功能描述:電流靈敏放大器 Current-Sense Amplifier RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補(bǔ)償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel
MAX9922EUB+ 功能描述:電流靈敏放大器 Current-Sense Amplifier RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補(bǔ)償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel
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