TPS3803-01 Datasheet, PDF (6/12 Pages) Texas Instruments – VOLTAGE DETECTOR

TPS3803-01, TPS3803G15, TPS3805H33
VOLTAGE DETECTOR
SLVS392 – JULY 2001
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
VOH
VOL
VDD = 1.5 V,
High-level output voltage (TPS3805 only)
VDD = 3.3 V,
VDD = 6 V,
VDD = 1.5 V,
Low-level output voltage
VDD = 3.3 V,
VDD = 6 V,
Power-up reset voltage (see Note 2)
VIT > 1.5 V, TA = 25°C
VIT ≤ 1.5 V, TA = 25°C
IOH = –0.5 mA
IOH = –1.0 mA
IOH = –1.5 mA
IOL = 1.0 mA
IOL = 2 mA
IOL = 3 mA
0.8xVDD
0.8
1.0
V
0.3 V
V
V
Negative-going input threshold
VIT _{voltage (see Note 3)}
SENSE
TPS3803G15
TPS3805H33
TA = –40°C to 85°C
1.208 1.226 1.244
1.379 1.4 1.421 V
3.004 3.05 3.096
Vhys Hysteresis
II
Input current
IOH High-level output current at RESET
SENSE
Open drain only
TPS3803–01
1.2 V < VIT < 2.5 V
2.5 V < VIT < 3.5 V
VDD=VIT+0.2V, VOH=VDD
15
mV
30
–25
25 nA
300 nA
2
4
IDD Supply current
TPS3805,
TPS3803G15
TPS3803–01
VDD=3.3 V, output unconnected
3
5
2
4 ^µA
TPS3805,
TPS3803G15
VDD=6 V, output unconnected
4
6
CI
Input capacitance
VI= 0 V to VDD
1
pF
NOTES: 2. The lowest supply voltage at which RESET (VOL(max) = 0.2 V, IOL = 50 µA) becomes active. tr(V_DD) ≥ 15 µs/V
3. 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
tw
Pulse width
At VDD
At SENSE
VIH = 1.05 x VIT, VIL = 0.95 x VIT
MIN TYP MAX UNIT
5.5
µs
switching characteristics at R_L = 1 MΩ, C_L = 50 pF, T_A = –40°C to 85°C
PARAMETER
TEST CONDITIONS
Propagation (delay) time,
tPHL _{high-to-low-level output}
Propagation (delay) time,
tPLH _{low-to-high-level output}
VDD to RESET delay
SENSE to RESET delay
VDD to RESET delay
SENSE to RESET delay
VIH = 1.05 x VIT,
VIL = 0.95 x VIT
MIN TYP MAX UNIT
5 100
µs
5 100
6
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