Datasheet

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ELECTRICAL CHARACTERISTICS
TIMING REQUIREMENTS
SWITCHING CHARACTERISTICS
TPS3803-01-Q1
TPS3803G15-Q1
TPS3805H33-Q1
SGLS228B DECEMBER 2003 REVISED JANUARY 2008
over 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 mA 0.8 × V
DD
V
V
DD
= 6 V, I
OH
= 1.5 mA
V
DD
= 1.5 V, I
OL
= 1 mA
V
OL
Low-level output voltage V
DD
= 3.3 V, I
OL
= 2 mA 0.3 V
V
DD
= 6 V, I
OL
= 3 mA
V
IT
> 1.5 V, T
A
= 25 ° C 0.8
Power-up reset voltage
(1)
V
V
IT
1.5 V, T
A
= 25 ° C 1
SENSE 1.2 1.226 1.244
Negative-going input
V
IT
TPS3803G15 1.379 1.4 1.421 V
threshold voltage
(2)
TPS3805H33 3.004 3.05 3.096
1.2 V < V
IT
< 2.5 V 15
V
hys
Hysteresis mV
2.5 V < V
IT
< 3.5 V 30
I
I
Input current SENSE 25 25 nA
High-level output
I
OH
Open drain only V
DD
= V
IT
+ 0.2 V, V
OH
= V
DD
300 nA
current at RESET
TPS3803-01 2 4
V
DD
= 3.3 V, Output unconnected
TPS3805, TPS3803G15 3 5
I
DD
Supply current µ A
TPS3803-01 2 4
V
DD
= 6 V, Output unconnected
TPS3805, TPS3803G15 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 µ A) becomes active. t
r
(V
DD
) 15 µ s/V.
(2) To ensure the best stability of the threshold voltage, place a bypass capacitor (ceramic, 0.1 µ F) near the supply terminals.
R
L
= 1 M , C
L
= 50 pF, T
A
= 40 ° C to 125 ° C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN MAX UNIT
V
DD
t
w
Pulse duration V
IH
= 1.05 × V
IT
, V
IL
= 0.95 × V
IT
5.5 µ s
SENSE
R
L
= 1 M , C
L
= 50 pF, T
A
= 40 ° C to 125 ° C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
DD
to RESET delay
Propagation (delay) time,
t
PHL
V
IH
= 1.05 × V
IT
, V
IL
= 0.95 × V
IT
5 100 µ s
high-to-low-level output
SENSE to RESET delay
V
DD
to RESET delay
Propagation (delay) time,
t
PLH
V
IH
= 1.05 × V
IT
, V
IL
= 0.95 × V
IT
5 100 µ s
low-to-high-level output
SENSE to RESET delay
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