Datasheet

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TIMING REQUIREMENTS
SWITCHING CHARACTERISTICS
TYPICAL CHARACTERISTICS
4
0
−6
−10
−0.5 0 0.5 1 2.5 3 3.5
− Supply Current −
8
14
18
4 5 6 7
16
12
10
6
2
−2
−4
−8
1.5 2 4.5 5.5 6.5
I
DD
Aµ
V
DD
− Supply Voltage − V
SENSEn = V
DD
T
A
= 25°C
TPS3306−33
1
0.999
0.997
0.995
−40 −15 10 35
Normalized Input Threshold Voltage − VIT(TA), VIT(25 )
1.002
1.003
1.005
60 85
V
DD
= 6 V
1.004
1.001
0.998
0.996
C
°
T
A
− Free-Air Temperature − °C
TPS3306-15
TPS3306-18 , TPS3306-20
TPS3306-25 , TPS3306-33
SLVS290C – APRIL 2000 – REVISED DECEMBER 2006
at V
DD
= 2.7 V to 6 V, R
L
= 1 M Ω , C
L
= 50 pF, T
A
= 25 ° C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SENSEn V
SENSEnL
= V
IT
– 0.2 V, V
SENSEnH
= V
IT
+ 0.2 V 6 µ s
t
w
Pulse width
WDI V
IH
= 0.7 × V
DD
, V
IL
= 0.3 × V
DD
100 ns
at V
DD
= 2.7 V to 6 V, R
L
= 1 M Ω , C
L
= 50 pF, T
A
= 25 ° C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
I(SENSEn)
≥ V
IT
+ 0.2 V,
t
t(out)
Watchdog time-out 0.5 0.8 1.2 s
See Timing Diagram
V
I(SENSEn)
≥ V
IT
+ 0.2 V,
t
d
Delay time 70 100 140 ms
See Timing Diagram
Propagation (delay) time,
t
PHL
SENSEn to RESET V
IH
= V
IT
+ 0.2 V, V
IL
= V
IT
– 0.2 V 1 5 µ s
high-to-low level output
Propagation (delay) time,
t
PHL
high-to-low level output
PFI to PFO 0.5 1 µ s
Propagation (delay) time,
t
PLH
low-to-high level output
NORMALIZED SENSE THRESHOLD VOLTAGE SUPPLY CURRENT
vs vs
FREE-AIR TEMPERATURE AT V
DD
SUPPLY VOLTAGE
Figure 2. Figure 3.
8
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