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参数资料
| 型号： | ATS672LSB-HT |
| 厂商： | Allegro MicroSystems, Inc. |
| 英文描述： | Self-Calibrating TPO Gear-Tooth Sensor with 9-Bit Signal Capture |
| 中文描述： | 自校准城市规划条例齿轮齿传感器9位信号捕获 |
| 文件页数： | 11/12页 |
| 文件大小： | 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
相关PDF资料 |
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 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ATS672LSB-LN | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Self-Calibrating TPO Gear-Tooth Sensor with 9-Bit Signal Capture |
| ATS672LSB-LT | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Self-Calibrating Gear Tooth Sensor with 9-Bit Signal Capture |
| ATS673 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Self-Calibrating TPOS Gear Tooth Sensor Optimized for Automotive Cam Sensing Applications |
| ATS673_06 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Self-Calibrating TPOS Gear Tooth Sensor Optimized for Automotive Cam Sensing Applications |
| ATS673LSETN-HT | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Self-Calibrating TPOS Gear Tooth Sensor Optimized for Automotive Cam Sensing Applications |
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