Datasheet

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SLVS392A − JULY 2001 − REVISED JUNE 2007
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6
ELECTRICAL CHARACTERISTICS
Over recommended operating free-air temperature range, unless otherwise noted.
PARAMETER
TEST CONDITIONS MIN TYP MAX UNIT
V
DD
= 1.5 V, I
OH
= −0.5 mA
V
OH
High-level output voltage (TPS3805 only)
V
DD
= 3.3 V, I
OH
= −1.0 mA
0.8 x V
DD
V
V
OH
High-level output voltage (TPS3805 only)
V
DD
= 6 V, I
OH
= −1.5 mA
0.8 x V
DD
V
V
DD
= 1.5 V, I
OL
= 1.0 mA
V
OL
Low-level output voltage
V
DD
= 3.3 V, I
OL
= 2 mA
0.3 V
V
OL
Low-level output voltage
V
DD
= 6 V, I
OL
= 3 mA
0.3
V
Power-up reset voltage
(1)
VIT > 1.5 V, TA = 25°C 0.8 V
Power-up reset voltage
(1)
VIT ≤ 1.5 V, TA = 25°C 1.0 V
Negative-going input threshold
SENSE 1.208 1.226 1.244
V
IT
Negative-going input threshold
voltage
(2)
TPS3803G15
T
A
= −40°C to +85°C
1.379 1.4 1.421
V
V
IT
voltage
(2)
TPS3805H33
T
A
= −40 C to +85 C
3.004 3.05 3.096
V
V
hys
Hysteresis
1.2 V < V
IT
< 2.5 V 15
mV
V
hys
Hysteresis
2.5 V < V
IT
< 3.5 V
30
mV
I
I
Input current SENSE −25 25 nA
I
OH
High-level output current at RESET Open drain only V
DD
= V
IT
+ 0.2V, V
OH
= V
DD
300 nA
TPS3803−01 2 4
I
DD
Supply current
TPS3805,
TPS3803G15
V
DD
= 3.3 V, output unconnected
3 5
A
I
DD
Supply current
TPS3803−01
2 4
µA
TPS3805,
TPS3803G15
V
DD
= 6 V, output unconnected
4 6
C
I
Input capacitance V
I
= 0 V to V
DD
1 pF
(1)
The lowest supply voltage at which RESET
(V
OL
(max) = 0.2 V, I
OL
= 50 µA) becomes active. t
r(V
DD
)
≥ 15 µs/V.
(2)
To ensure the best stability of the threshold voltage, place a bypass capacitor (ceramic, 0.1 µF) near the supply terminals.
TIMING REQUIREMENTS
AT R
L
= 1 MΩ, C
L
= 50 PF, T
A
= −40°C TO +85°C.
PARAMETER
TEST CONDITIONS MIN TYP MAX UNIT
t
w
Pulse width
At V
DD
V
IH
= 1.05 x V
IT
, V
IL
= 0.95 x V
IT
5.5
s
t
w
Pulse width
At SENSE
V
IH
= 1.05 x V
IT
, V
IL
= 0.95 x V
IT
5.5 µs
SWITCHING CHARACTERISTICS
AT R
L
= 1 MΩ, C
L
= 50 PF, T
A
= −40°C TO +85°C.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
PHL
Propagation (delay) time,
V
DD
to RESET delay
V = 1.05 x V ,
5
100
t
PHL
Propagation (delay) time,
high-to-low-level output
SENSE to RESET
delay
V
IH
= 1.05 x V
IT
,
V
IL
= 0.95 x V
IT
5 100
s
t
PLH
Propagation (delay) time,
V
DD
to RESET delay
IH IT
V
IL
= 0.95 x V
IT
5
100
µs
t
PLH
Propagation (delay) time,
low-to-high-level output
SENSE to RESET delay
5 100