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參數(shù)資料
| 型號(hào)： | ATS665LSGTN-T |
| 元件分類： | 速度傳感器和接近開關(guān) |
| 英文描述： | PROXIMITY SENSOR-HALL EFFECT, 0.5-2.5mm, 0.40V, ROUND, THROUGH HOLE MOUNT |
| 封裝： | LEAD FREE PLASTIC PACKAGE-4 |
| 文件頁數(shù)： | 8/18頁 |
| 文件大?。?/td> | 521K |
| 代理商： | ATS665LSGTN-T |
True Zero Speed, High Accuracy, Gear Tooth Sensor IC
ATS665LSG
15
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Power Derating
Due to internal power consumption, the junction temperature of the
IC, TJ, is higher than the ambient environment temperature, TA. To
ensure that the device does not operate above the maximum rated
junction temperature use the following calculations:
ΔT = PD × RθJA
Where:
PD = VCC × ICC
∴ ΔT = VCC × ICC × RθJA
Where
ΔT denotes the temperature rise resulting from the IC’s
power dissipation.
TJ = TA + ΔT
For the IC:
TJ(max) = 165°C
RθJA = 126°C/W
Typical TJ calculation:
TA = 25°C
VCC = 5 V
ICC = 7.0 mA
PD = VCC × ICC = 5 V × 8.0 mA = 40.0 mW
ΔT = PD × RθJA = 40.0 mW × 126°C/W = 5.0°C
TJ = TA + ΔT = 25°C + 5.0°C = 30.0°C
Maximum Allowable Power Dissipation Calculation for ATS665:
Assume:
TA = TA(max) = 165°C
TJ(max) = 165°C
ICC = 12.0 mA
If:
TJ = TA + ΔT
Then, at TA = 150 °C:
ΔT(max) = TJ(max) – TA(max) = 165°C –150°C = 15°C
If:
ΔT = PD × RθJA
Then, at TA = 150°C:
PD(max) = ΔT(max) / RθJA = 15°C / 126°C/W = 119 mW
If:
PD = VCC × ICC
Then the maximum VCC at 150°C is therefore:
VCC(max) = PD(max) / ICC = 119 mW / 12.0 mA = 9.9 V
This value applies only to the voltage drop across the 665 chip. If
a protective series diode or resistor is used, the effective maximum
supply voltage is increased.
For example, when a standard diode with a 0.7 V drop is used:
VS(max) = 9.9 V + 0.7 V = 10.6 V
ATS665LSG Package Power De-Rating Curve
Thermal Resistance = 126°C/Watt, Tjmax = 165°C
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c
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ATS665LSGTN-T | 制造商:Allegro MicroSystems 功能描述:; Leaded Process Compatible:Yes |
| ATS667LSG | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:True Zero-Speed, High Accuracy Gear Tooth Sensor IC |
| ATS667LSGTN-T | 功能描述:IC SENSOR GEAR TOOTH 4SIP RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應(yīng)，數(shù)字式開關(guān)，線性，羅盤 (IC) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉(zhuǎn) 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數(shù)字式，PWM，8.5 位串行 特點(diǎn):可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
| ATS668LSMTN-T | 功能描述:THREE-WIRE DIFFERENTIAL SPEED SE 制造商:allegro microsystems, llc 系列:* 零件狀態(tài):在售 標(biāo)準(zhǔn)包裝:1 |
| ATS671LSE | 制造商:Allegro MicroSystems LLC 功能描述: |
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