TPS31xxExx, TPS31xxH20, TPS31xxK33
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ULTRALOW SUPPLY CURRENT/SUPPLY VOLTAGE SUPERVISORY CIRCUITS
SLVS363B − AUGUST 2001 − REVISED SEPTEMBER 2004
electrical characteristics over recommended operating conditions (unless otherwise noted)
PARAMETERS
TEST CONDITIONS
VDD = 3.3 V, IOH = −3 mA
VDD = 1.8 V, IOH = −2 mA
VDD = 1.5 V, IOH = −1 mA
VDD = 0.9 V, IOH = −0.4 mA
VDD = 0.5 V, IOH = −5
µA
VDD = 3.3 V, IOL = 3 mA
VOL
Low-level output
voltage
RESET only
TPS31xxE09
TPS31xxE12
VIT−
Negative-going input
threshold voltage (1)
TPS31xxE15
TPS31xxE16
TPS31xxH20
TPS31xxK33
VIT−(S)
Negative-going input
threshold voltage (1)
SENSE, PFI
VDD
≥
0.8 V, TA = 25°C
0.8 V
≤
VIT
<
1.5 V
Vhys
T(K)
Vhys
IIH
Hysteresis at VDD input
Temperature coefficient of VIT−, PFI, SENSE
Hysteresis at SENSE, PFI input
MR
High-level input current
SENSE, PFI, WDI
MR
IIL
IOH
Low-level input current
High-level output
current at RESET (2)
SENSE, PFI, WDI
Open drain
1.6 V
≤
VIT
<
2.4 V
2.5 V
≤
VIT
<
3.3 V
TA = −40°C to 85°C
VDD
≥
0.8 V
MR = VDD, VDD = 3.3 V
SENSE, PFI, WDI = VDD,
VDD = 3.3 V
MR = 0 V, VDD = 3.3 V
SENSE, PFI, WDI = 0 V, VDD = 3.3 V
VDD = VIT + 0.2 V, VOH = 3.3 V
VDD
>
VIT (average current),
VDD
<
1.8 V
IDD
Supply current
VDD
>
VIT (average current),
VDD
>
1.8 V
VDD
<
VIT, VDD
<
1.8 V
VDD
<
VIT, VDD
>
1.8 V
Internal pull-up resistor at MR
70
100
1.2
2
−25
−25
−47
−25
−33
TA = 25°C
VDD = 1.5 V, IOL = 2 mA
VDD = 1.2 V, IOL = 1 mA
VDD = 0.9 V, IOL = 500
µA
VDD = 0.4 V, IOL = 5
µA
0.854
1.133
1.423
1.512
1.829
2.919
0.542
0.86
1.142
1.434
1.523
1.843
2.941
0.551
20
30
50
−0.012
15
25
25
−25
25
200
3
4.5
22
27
130
kΩ
µA
nA
µA
nA
nA
−0.019
%/K
mV
mV
MIN
TYP
MAX
UNIT
VOH
High-level output voltage
0.8
×
VDD
V
0.7
×
VDD
0.3
V
0.1
0.866
1.151
1.445
1.534
1.857
2.963
0.559
V
V
Ci
Input capacitance at MR, SENSE, PFI, WDI
VI = 0 V to VDD
1
pF
(1) To ensure the best stability of the threshold voltage, a bypass capacitor (ceramic, 0.1
µF)
should be placed close to the supply terminals.
(2) Also refers to RSTVDD and RSTSENSE
11
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