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TPS3305-18 Datasheet(PDF) 7 Page - Texas Instruments

No. de pieza TPS3305-18
Descripción Electrónicos  DUAL PROCESSOR SUPERVISORS
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TPS3305-18 Datasheet(HTML) 7 Page - Texas Instruments

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TPS3305-18, TPS3305-25, TPS3305-33
DUAL PROCESSOR SUPERVISORS
SLVS198 – DECEMBER 1998
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VDD = 2.7 V to 6 V, IOH = –20 µA
VDD– 0.2V
VOH
High-level output voltage
VDD = 3.3 V,
IOH = –2 mA
VDD– 0.4V
V
VDD = 6 V,
IOH = –3 mA
VDD– 0.4V
VDD = 2.7 V to 6 V, IOL = 20 µA
0.2
VOL
Low-level output voltage
VDD = 3.3 V,
IOL = 2 mA
0.4
V
VDD = 6 V,
IOL = 3 mA
0.4
Power-up reset voltage (see Note 2)
VDD ≥ 1.1 V,
IOL = 20 µA
0.4
V
1.64
1.68
1.72
VSENSE1,
VDD = 2.7 V to 6 V,
2.20
2.25
2.30
V
VSENSE2
DD
TA = 0°C to 85°C
2.86
2.93
3
V
VIT
Negative-going input threshold voltage
4.46
4.55
4.64
VIT–
gg
g
g
(see Note 3)
1.64
1.68
1.73
VSENSE1,
VDD = 2.7 V to 6 V,
2.20
2.25
2.32
V
VSENSE2
DD
TA =–40°C to 85°C
2.86
2.93
3.02
V
4.46
4.55
4.67
VIT– = 1.68 V
15
Vh
Hysteresis at VSENSEn input
VIT– = 2.25 V
20
mV
Vhys
Hysteresis at VSENSEn input
VIT– = 2.93 V
30
mV
VIT– = 4.55 V
40
IH(AV) Average high-level input current
WDI
WDI = VDD = 6 V
Time average (dc = 88%)
100
150
µA
IL(AV)
Average low-level input current
WDI
WDI = 0 V,
VDD = 6 V,
Time average (dc = 12%)
–15
–20
µA
WDI
WDI = VDD = 6 V,
120
170
IH
High level input current
MR
MR = 0.7
× VDD,VDD = 6 V
–130
–180
µA
IH
High-level input current
SENSE1
VSENSE1 = VDD = 6 V
5
8
µA
SENSE2
VSENSE2 = VDD = 6 V
6
9
WDI
WDI = 0 V,
VDD, = 6 V
–120
–170
IL
Low-level input current
MR
MR = 0V,
VDD = 6 V
–430
–600
µA
SENSEn
VSENSE1,2 = 0 V
–1
1
IDD
Supply current
40
µA
Ci
Input capacitance
VI = 0 V to VDD
10
pF
NOTES:
2. The lowest supply voltage at which RESET becomes active. tr, VDD ≥ 15 µs/V.
3. To ensure best stability of the threshold voltage, a bypass capacitor (ceramic 0.1
µF) should be placed close to the supply terminals.


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