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参数资料
| 型号： | LM99 |
| 厂商： | National Semiconductor Corporation |
| 元件分类： | 温度/湿度传感器 |
| 英文描述： | 【1C Accurate, High Temperature, Remote Diode Temperature Sensor with Two-Wire Interface |
| 中文描述： | 【集成电路准确，高温，远程二极管温度传感器，两线接口 |
| 文件页数： | 15/20页 |
| 文件大小： | 349K |
| 代理商： | LM99 |
Absolute Maximum Ratings (Note 1)
Supply Voltage
0.3 V to 6.0 V
Voltage at SMBData, SMBCLK,
ALERT, T_CRIT_A
0.5 V to 6.0 V
Voltage at Other Pins
0.3 V to
(V
DD + 0.3 V)
D Input Current
±1mA
Input Current at All Other Pins
±5mA
Package Input Current
30 mA
SMBData, ALERT, T_CRIT_A Output
Sink Current
10 mA
Storage Temperature
65C to
+150C
Soldering Information, Lead Temperature
MSOP-8 Packages (Note 3)
Vapor Phase (60 seconds)
215C
Infrared (15 seconds)
220C
ESD Susceptibility (Note 4)
Human Body Model
2000 V
Machine Model
200 V
Operating Ratings
(Notes 1, 5)
Operating Temperature Range
0C to +125C
Electrical Characteristics
Temperature Range
T
MIN
≤ T
A
≤ T
MAX
LM99
0C
≤ T
A
≤ +85C
Supply Voltage Range (V
DD)
+3.0 V to +3.6 V
Temperature-to-Digital Converter Characteristics
Unless otherwise noted, these specifications apply for V
DD = +3.0 Vdc to +3.6 Vdc. Boldface limits apply for TA =TJ =TMIN
≤ T
A
≤ T
MAX; all other limits TA =TJ = +25C, unless otherwise noted.
Parameter
Conditions
Typical
Limits
Units
(Limit)
Temperature Error Using Local Diode
T
A = +25C to +125C, (Note 8)
±1
±3
C (max)
Temperature Error Using Remote Diode
Connected Transistor (T
D is the Remote
Diode Junction Temperature)
T
D =TLM99 + 16C
T
A = +30C to +50C and TD =
+120C to +140C
±1
C (max)
T
A = +0C to +85C and TD =
+25C to +140C
±3
C (max)
Remote Diode Measurement Resolution
11
Bits
0.125
C
Local Diode Measurement Resolution
8
Bits
1C
Conversion Time of All Temperatures at the
Fastest Setting
31.25
34.4
ms (max)
Quiescent Current (Note 9)
SMBus Inactive, 16 Hz
conversion rate
0.8
1.7
mA (max)
Shutdown
315
A
D Source Voltage
0.7
V
Diode Source Current
(V
D+ VD) = + 0.65 V; high
level
160
315
A (max)
110
A (min)
Low level
13
20
A (max)
7
A (min)
ALERT and T_CRIT_A Output Saturation
Voltage
I
OUT = 6.0 mA
0.4
V (max)
Power-On-Reset (POR) Threshold
Measure on V
DD input, falling
edge
2.4
1.8
V (max)
V (min)
Local and Remote HIGH Default Temperature
settings
(Note 11) Add 16C for true
Remote Temperature.
+70
C
Local and Remote LOW Default Temperature
settings
(Note 11) Add 16C for true
Remote Temperature.
0C
Local T_CRIT Default Temperature Setting
+85
C
Remote T_CRIT Default Temperature Setting
(Note 11) Add 16C for 126C
true Remote T_CRIT Setting
+110
C
LM99
www.national.com
4
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