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參數資料
| 型號： | TPS31XXH20 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | ULTRALOW SUPPLY-CURRENT/SUPPLY-VOLTAGE SUPERVISORY CIRCUITS |
| 中文描述： | 超低SUPPLY-CURRENT/SUPPLY-VOLTAGE監控電路 |
| 文件頁數： | 10/19頁 |
| 文件大小： | 306K |
| 代理商： | TPS31XXH20 |
TPS31xxExx, TPS31xxH20, TPS31xxK33
ULTRALOW SUPPLY-CURRENT/SUPPLY-VOLTAGE SUPERVISORY CIRCUITS
SLVS363
–
AUGUST 2001
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
SENSE
The voltage at the SENSE input is compared with a reference voltage of 0.551 V. If the voltage at SENSE falls
below the sense-threshold (V
IT
–
(S)
), reset is asserted. On the TPS3106, a dedicated RSTSENSE output is
available. On the TPS3110, the logic signal from SENSE is OR-wired with the logic signal from V
DD
or MR. An
internal timer delays the return of the output to the inactive state, once the voltage at SENSE goes above 0.551 V
plus about 15 mV of hysteresis. For proper operation of the SENSE-comparator, the supply voltage must be
higher than 0.8 V.
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Supply voltage, V
DD
(see Note1)
All other pins (see Note 1)
Maximum low output current, I
OL
Maximum high output current, I
OH
Input clamp current, I
IK
(V
I
< 0 or V
I
> V
DD
)
Output clamp current, I
OK
(V
O
< 0 or V
O
> V
DD
)
Continuous total power dissipation
Operating free-air temperature range, T
A
Storage temperature range, T
stg
Soldering temperature
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–
0.3 V to 3.6 V
5 mA
–
5 mA
±
10 mA
±
10 mA
See Dissipation Rating Table
–
40
°
C to 85
°
C
–
65
°
C to 150
°
C
260
°
C
Stresses beyond those listed under
“
absolute maximum ratings
”
may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under
“
recommended operating conditions
”
is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to GND. For reliable operation, the device must not be operated at 3.6 V for more than t=1000h
continuously.
DISSIPATION RATING TABLE
PACKAGE
TA
≤
25
°
C
POWER RATING
DERATING FACTOR
ABOVE TA = 25
°
C
3.5 mW/
°
C
TA = 70
°
C
POWER RATING
TA = 85
°
C
POWER RATING
DBV
437 mW
280 mW
227 mW
recommended operating conditions
MIN
0.4
MAX
3.3
UNIT
V
V
V
V
ns/V
°
C
Supply voltage, VDD (see Note 2)
Input voltage, VI
High-level input voltage, VIH at MR, WDI
Low-level input voltage, VIL at MR, WDI
Input transition rise and fall rate at
t/
V at MR, WDI
Operating free-air temperature range, TA
NOTE 2: For proper operation of SENSE, PFI, and WDI functions: VDD
≥
0.8 V
0
VDD + 0.3
0.7
×
VDD
0.3
×
VDD
100
85
–
40
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