參數(shù)資料
型號(hào)： TPS310315DVB
廠商： Texas Instruments, Inc.
英文描述： ULTRALOW SUPPLY CURRENT/SUPPLY VOLTAGE SUPERVISORY CIRCUITS
中文描述： 超低電源電流/電源電壓監(jiān)控電路
文件頁(yè)數(shù)： 10/22頁(yè)
文件大?。?/td> 361K
代理商： TPS310315DVB
SLVS363B AUGUST 2001 REVISED SEPTEMBER 2004
www.ti.com
10
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)
(1)
Supply voltage, V
DD
(2)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
All other pins
(2)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(1)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.
(2)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.
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
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 (1)
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
(1)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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