Datasheet
SLVS335C − DECEMBER 2000 − REVISED JANUARY 2007
8
electrical characteristics over recommended operating conditions (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
OUT
= 2 V, I
OH
= −400 µA V
OUT
− 0.2 V
V
OH
High-level output voltage
RESET
V
OUT
= 3.3 V I
OH
= −2 mA
V
OUT
= 5 V, I
OH
= −3 mA
V
OUT
− 0.4 V
V
V
OH
High-level output voltage
V
OUT
= 1.8 V, I
OH
= −20 µA V
OUT
− 0.3 V
V
PFO
V
OUT
= 3.3 V, I
OH
= −80 µA
V
OUT
= 5 V, I
OH
= −120 µA
V
OUT
− 0.4 V
RESET
V
OUT
= 2 V, I
OL
= 400 µA 0.2
V
OL
Low-level output voltage
RESET
PFO
V
OUT
= 3.3 V, I
OL
= 2 mA
V
OUT
= 5 V, I
OL
= 3 mA
0.4
V
V
res
Power-up reset voltage (see Note 2)
V
BAT
> 1.1 V or
V
DD
> 1.4 V, I
OL
= 20 µA
0.4 V
I
O
= 5 mA, V
DD
= 1.8 V V
DD
− 50 mV
Normal mode
I
O
= 75 mA, V
DD
= 3.3 V V
DD
− 150 mV
V
OUT
Normal mode
I
O
= 150 mA, V
DD
= 5 V V
DD
− 250 mV
V
V
OUT
Battery-backup mode
I
O
= 4 mA, V
BAT
= 1.5 V V
BAT
− 50 mV
V
Battery-backup mode
I
O
= 75 mA, V
BAT
= 3.3 V V
BAT
− 150 mV
r
ds(on)
V
DD
to V
OUT
on-resistance V
DD
= 3.3 V 1 2
Ω
r
ds(on)
V
BAT
to V
OUT
on-resistance V
BAT
= 3.3 V 1 2
Ω
V
IT
Negative-going input
threshold voltage
(see Notes 3 and 4)
TPS3606x33 2.87 2.93 2.99 V
V
(PFI)
Power-fail input
threshold voltage
PFI 1.13 1.15 1.17
V
(SWN)
Battery switch threshold voltage
negative-going V
OUT
V
IT
+ 1% V
IT
+ 2% V
IT
+ 3.2% V
NOTES: 2. The lowest supply voltage at which RESET becomes active. t
r(VDD)
≥ 15 µs/V.
3. To ensure best stability of the threshold voltage, a bypass capacitor (ceramic, 0.1 µF) should be placed near the supply terminal.
4. Voltage is sensed at V
OUT
5. For details on how to optimize current consumption when using WDI refer to section detailed description.
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