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參數(shù)資料
| 型號(hào)： | ATS672LSB-HT |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | Self-Calibrating TPO Gear-Tooth Sensor with 9-Bit Signal Capture |
| 中文描述： | 自校準(zhǔn)城市規(guī)劃條例齒輪齒傳感器9位信號(hào)捕獲 |
| 文件頁(yè)數(shù)： | 11/12頁(yè) |
| 文件大?。?/td> | 252K |
| 代理商： | ATS672LSB-HT |
ATS672LSB
SELF-CALIBRATING TPOS GEAR-TOOTH SENSOR WITH 9-BIT SIGNAL CAPTURE
Preliminary – Subject to Change
Rev. 1.2 May 1, 2002
Page
11 of 12
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright 1993, 1995 Allegro MicroSystems, Inc.
Power Derating Curve:
ATS672LSB Package
Power Derating
Due to internal power consumption, the temperature of the
IC (junction temperature, 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:
T=P
D
* R
θ
JA
Where P
D
=Vcc * Icc
∴
T=Vcc * Icc * R
θ
JA
Where
T denotes the temperature rise resulting from the
IC’s power dissipation:
T
J
= T
A
+
T
R
θ
JA
=150°C/W T
J
(max) = 170°C
Typical T
J
Calculation:
T
A
=25°C, Vcc=5 V, Icc(On)=6.5 mA
P
D
=Vcc * Icc
P
D
= 5 V * 6.5 mA = 32.5 mW
T=P
D
* R
θ
JA
= 32.5 mW * 150°C/W = 4.9°
T
J
= T
A
+
T = 25°C + 4.9°C = 29.9°C
Maximum Allowable Power Dissipation Calculation
T
J
= T
A
+
T
T
J
(max) = 170°C, if T
A
=160°C then:
170 = 160 +
T
T = 10°C
T = P
D
* R
θ
JA
(R
θ
JA
= 150°C/W)
∴
P
D(max)
= 10°C / 150°C/W = 66.6 mW @ T
A
= 160°C
Maximum Vcc for P
D(max)
=
111 mW at T
A
=160°C
P
D
=Vcc * Icc Icc = 10 mA (max) at 160°C
Vcc = P
D
/ Icc = 66.6 mW / 10 mA = 6.66 V
Maximum Power Dissipation vs. Ambient Temperature
SB Package: Thermal Resistance: 150°C/Watt
0
100
200
300
400
500
600
700
800
900
1000
20
30
40
50
60
70
Ambient Temperature [°C]
80
90
100
110
120
130
140
150
160
170
M
D
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ATS673 | Self-Calibrating TPOS Gear Tooth Sensor Optimized for Automotive Cam Sensing Applications |
| ATS674 | Self-Calibrating TPOS Gear Tooth Sensor Optimized for Automotive Cam Sensing Applications |
| ATS674LSETN-HT | Self-Calibrating TPOS Gear Tooth Sensor Optimized for Automotive Cam Sensing Applications |
| ATS674LSETN-HT-T | Self-Calibrating TPOS Gear Tooth Sensor Optimized for Automotive Cam Sensing Applications |
| ATS674LSETN-LT | Self-Calibrating TPOS Gear Tooth Sensor Optimized for Automotive Cam Sensing Applications |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ATS672LSB-LN | 制造商:ALLEGRO 制造商全稱(chēng):Allegro MicroSystems 功能描述:Self-Calibrating TPO Gear-Tooth Sensor with 9-Bit Signal Capture |
| ATS672LSB-LT | 制造商:ALLEGRO 制造商全稱(chēng):Allegro MicroSystems 功能描述:Self-Calibrating Gear Tooth Sensor with 9-Bit Signal Capture |
| ATS673 | 制造商:ALLEGRO 制造商全稱(chēng):Allegro MicroSystems 功能描述:Self-Calibrating TPOS Gear Tooth Sensor Optimized for Automotive Cam Sensing Applications |
| ATS673_06 | 制造商:ALLEGRO 制造商全稱(chēng):Allegro MicroSystems 功能描述:Self-Calibrating TPOS Gear Tooth Sensor Optimized for Automotive Cam Sensing Applications |
| ATS673LSETN-HT | 制造商:ALLEGRO 制造商全稱(chēng):Allegro MicroSystems 功能描述:Self-Calibrating TPOS Gear Tooth Sensor Optimized for Automotive Cam Sensing Applications |
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