Datasheet
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ELECTRICAL CHARACTERISTICS
TPS3305
SLVS198C – DECEMBER 1998 – REVISED MARCH 2008
Over operating junction temperature range (unless otherwise noted).
TPS3305-xx
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
DD
Input supply range 2.7 6.0 V
T
J
Operating junction temperature range – 40 +85 ° C
V
DD
= 2.7V to 6V,
V
DD
– 0.2V V
I
OH
= – 20 µ A
V
OH
High-level output voltage
V
DD
= 3.3V, I
OH
= – 2mA V
DD
– 0.4V V
V
DD
= 6V, I
OH
= – 3mA V
DD
– 0.4V V
V
DD
= 2.7V to 6V,
0.2 V
I
OL
= 20 µ A
V
OL
Low-level output voltage
V
DD
= 3.3V, I
OL
= 2mA 0.4 V
V
DD
= 6V, I
OL
= 3mA 0.4 V
Power-up reset voltage
(1)
V
DD
≥ 1.1V, I
OL
= 20 µ A 0.4 V
1.64 1.68 1.72 V
2.20 2.25 2.30 V
VSENSE1, V
DD
= 2.7V to 6V,
VSENSE2 T
A
= 0 ° C to +85 ° C
2.86 2.93 3.0 V
4.46 4.55 4.64 V
Negative-going input threshold
V
IT –
voltage
(2)
1.64 1.68 1.73 V
2.20 2.25 2.32 V
VSENSE1, V
DD
= 2.7V to 6V,
VSENSE2 T
A
= – 40 ° C to +85 ° C
2.86 2.93 3.02 V
4.46 4.55 4.67 V
V
IT –
= 1.68V 15 mV
V
IT –
= 2.25V 20 mV
V
hys
Hysteresis at VSENSEn input
V
IT –
= 2.93V 30 mV
V
IT –
= 4.55V 40 mV
WDI = V
DD
= 6V
I
H(AV)
Average high-level input current WDI 100 150 µ A
Time average (dc = 88%)
WDI = 0V, V
DD
= 6V
I
L(AV)
Average low-level input current WDI – 15 – 20 µ A
Time average (dc = 12%)
V
IH
High-level input voltage at MR and WDI 0.7 x V
DD
V
V
IL
Low-level input voltage at MR and WDI 0.3 x V
DD
V
Δ t / Δ V Input transition rise and fall rate at MR 50 ns/V
WDI WDI = V
DD
= 6V 120 170 µ A
MR MR = 0.7 × V
DD
, V
DD
= 6V – 130 – 180 µ A
I
H
High-level input current
SENSE1 VSENSE1 = V
DD
= 6V 5 8 µ A
SENSE2 VSENSE2 = V
DD
= 6V 6 9 µ A
WDI WDI = 0V, V
DD
= 6V – 120 – 170 µ A
I
L
Low-level input current MR MR = 0V, V
DD
= 6V – 430 – 600 µ A
SENSEn VSENSE1,2 = 0V – 1 1 µ A
I
DD
Supply current 40 µ A
C
I
Input capacitance V
I
= 0V to V
DD
10 pF
(1) The lowest supply voltage at which RESET becomes active. t
r
, V
DD
≥ 15 µ s/V.
(2) To ensure best stability of the threshold voltage, a bypass capacitor (0.1 µ F ceramic) should be placed close to the supply terminals.
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