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參數(shù)資料
| 型號(hào)： | TCM1617EV |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | SMBus Thermal Sensor with External Diode Input |
| 中文描述： | 的SMBus溫度傳感器與外部二極管輸入 |
| 文件頁數(shù)： | 3/14頁 |
| 文件大?。?/td> | 74K |
| 代理商： | TCM1617EV |
3
TCM1617
TCM1617-1 2/5/99
2001 Microchip Technology Inc. DS21485A
SMBus Thermal Sensor with External Diode Input
NOTES:
1. Operating current is an average value (including external diode injection pulse current) integrated over multiple conversion cycles.
Transient current may exceed this specification.
2. For true reccurring conversion time see Conversion Rate register description.
3. Output current should be minimized for best temperature accuracy. Power dissipation within the TCM1617 will cause self-heating and
temperature drift error.
4. Refer to Application Note 64.
SMBus PORT AC TIMING:
V
DD
= 3.3V, –55
≤
(T
A
= T
J
)
≤
125
°
C; C
L
= 80 pF, unless otherwise noted.
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
f
SMB
t
LOW
t
HIGH
t
R
t
F
t
SU(START)
SMBus Clock Frequency
Low Clock Period
High Clock Period
SMBus Rise Time
SMBus Fall Time
Start Condition Setup Time
(for Repeated Start Condition)
Start Condition Hold Time
Data in Set Up Time
Data in Hold Time
Stop Condition Setup Time
Bus Free Time Prior to
New Transition
10
4.7
4
—
—
4
—
—
—
—
—
—
100
—
—
1,000
300
—
KHz
μ
sec
μ
sec
nsec
nsec
μ
sec
10% to 10%
90% to 90%
10% to 90%
90% to 10%
90% SCL to 10% SDA
t
H(START)
t
SU-DATA
t
H-DATA
t
SU(STOP)
t
IDLE
4
—
—
—
—
—
—
—
—
—
—
μ
sec
nsec
nsec
μ
sec
μ
sec
1000
1250
4
4.7
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
t
CONV
Conversion Time
from CHIP STOP to Conv.
Complete (Note 2)
See Conversion Rate Register Desc.
54
83
112
msec
CR
2-Wire SMBus Interface
V
IH
V
IL
V
OL
Conversion Rate Accuracy
–35
—
+35
%
Logic Input High
Logic Input Low
SDA Output Low
2.2
—
—
—
—
–1
—
—
—
—
5
0.1
—
0.8
0.4
0.6
—
1
V
V
V
V
pF
μ
A
I
OL
= 2 mA (Note 3)
I
OL
= 4 mA (Note 3)
C
IN
I
LEAK
Input Capacitance SDA, SCL
I/O Leakage
ELECTRICAL CHARACTERISTICS (CONT):
V
DD
= 3.3V, –55
°
C
≤
T
A
≤
125
°
C, unless otherwise noted.
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