Datasheet

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SWITCHING CHARACTERISTICS
TIMING REQUIREMENTS
TPS3103xxx
TPS3106xxx
TPS3110xxx
SLVS363E – AUGUST 2001 – REVISED SEPTEMBER 2007
ELECTRICAL CHARACTERISTICS (continued)
Over operating free-air temperature range (unless otherwise noted).
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
MR MR = 0 V, V
DD
= 3.3 V – 47 – 33 – 25 μ A
I
IL
Low-level input current
SENSE, PFI, SENSE, PFI, WDI = 0 V,
– 25 25 nA
WDI V
DD
= 3.3 V
High-level output current
I
OH
Open-drain V
DD
= V
IT
+ 0.2 V, V
OH
= 3.3 V 200 nA
at RESET
(2)
V
DD
> V
IT
(average current),
1.2 3
V
DD
< 1.8 V
V
DD
> V
IT
(average current),
2 4.5
I
DD
Supply current μ A
V
DD
> 1.8 V
V
DD
< V
IT
, V
DD
< 1.8 V 22
V
DD
< V
IT
, V
DD
> 1.8 V 27
Internal pull-up resistor at MR 70 100 130 k Ω
C
I
Input capacitance at MR, SENSE, PFI, WDI V
I
= 0 V to V
DD
1 pF
(2) Also refers to RSTVDD and RSTSENSE.
At R
L
= 1 M Ω , C
L
= 50 pF, and T
A
= – 40 ° C to +85 ° C, unless otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
D
Delay time V
DD
≥ 1.1 × V
IT
, MR = 0.7 × V
DD
, See Timing Diagrams 65 130 195 ms
Propagation delay time, V
DD
to RESET or
t
PHL
V
IH
= 1.1 × V
IT
, V
IL
= 0.9 × V
IT
40 μ s
high-to-low level output RSTVDD delay
Propagation delay time, V
DD
to RESET or
t
PLH
V
IH
= 1.1 × V
IT
, V
IL
= 0.9 × V
IT
40 μ s
low-to-high level output RSTVDD delay
Propagation delay time, SENSE to RESET or
t
PHL
V
DD
≥ 0.8 V, V
IH
= 1.1 × V
IT
, V
IL
= 0.9 × V
IT
40 μ s
high-to-low level output RSTSENSE delay
Propagation delay time, SENSE to RESET or
t
PLH
V
DD
≥ 0.8 V, V
IH
= 1.1 × V
IT
, V
IL
= 0.9 × V
IT
40 μ s
high-to-low level output RSTSENSE delay
Propagation delay time,
t
PHL
PFI to PFO delay V
DD
≥ 0.8 V, V
IH
= 1.1 × V
IT
, V
IL
= 0.9 × V
IT
40 μ s
high-to-low level output
Propagation delay time,
t
PLH
PFI to PFO delay V
DD
≥ 0.8 V, V
IH
= 1.1 × V
IT
, V
IL
= 0.9 × V
IT
300 μ s
low-to-high level output
MR to RESET.
Propagation delay time,
t
PHL
RSTVDD, V
DD
≥ 1.1 × V
IT
, V
IL
= 0.3 × V
DD
, V
IH
= 0.7 × V
DD
1 5 μ s
low-to-high level output
RSTSENSE delay
MR to RESET.
Propagation delay time,
t
PLH
RSTVDD, V
DD
≥ 1.1 × V
IT
, V
IL
= 0.3 × V
DD
, V
IH
= 0.7 × V
DD
1 5 μ s
low-to-high level output
RSTSENSE delay
At R
L
= 1 M Ω , C
L
= 50 pF, and T
A
= – 40 ° C to +85 ° C, unless otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
T(OUT)
Time-out period at WDI V
DD
≥ 0.85 V 0.55 1.1 1.65 s
at V
DD
V
IH
= 1.1 × V
IT
, V
IL
= 0.9 × V
IT –
, V
IT –
= 0.86 V 20
at MR V
DD
≥ V
IT
+ 0.2 V, V
IL
= 0.3 × V
DD
, V
IH
= 0.7 × V
DD
0.1
t
W
Pulse width at SENSE V
DD
≥ V
IT
, V
IH
= 1.1 × V
IT − (S)
, V
IL
= 0.9 × V
IT − (S)
20 μ s
at PFI V
DD
≥ 0.85 V, V
IH
= 1.1 × V
IT − (S)
,V
IL
= 0.9 × V
IT − (S)
20
at WDI V
DD
≥ V
IT
, V
IL
= 0.3 × V
DD
, V
IH
= 0.7 × V
DD
0.3
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