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TPS389018QDSERQ1 Datasheet(PDF) 5 Page - Texas Instruments

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No. de pieza TPS389018QDSERQ1
Descripción Electrónicos  Low Quiescent Current, 1% Accurate Supervisor with Programmable Delay
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

TPS389018QDSERQ1 Datasheet(HTML) 5 Page - Texas Instruments

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TPS3890-Q1
www.ti.com
SBVS303A – MARCH 2017 – REVISED OCTOBER 2017
Product Folder Links: TPS3890-Q1
Submit Documentation Feedback
Copyright © 2017, Texas Instruments Incorporated
(1)
VHYST = [(VITP – VITN) / VITN] × 100%.
7.5 Electrical Characteristics
over the operating junction temperature range of –40°C to +125°C (TA = TJ), 1.5 V ≤ VDD ≤ 5.5 V, and MR = VDD (unless
otherwise noted); typical values are at VDD = 5.5 V and TJ = 25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VDD
Input supply voltage
1.5
5.5
V
VPOR
Power-on-reset voltage
VOL(max) = 0.2 V, IRESET = 15 µA
0.8
V
IDD
Supply current (into VDD pin)
VDD = 3.3 V, IRESET = 0 mA,
–40°C < TJ < 85°C
2.09
3.72
µA
VDD = 3.3 V, IRESET = 0 mA,
–40°C < TJ < 105°C
4.5
VDD= 3.3 V, IRESET = 0 mA
5.8
VDD = 5.5 V, IRESET = 0 mA,
–40°C < TJ < 85°C
2.29
4
VDD = 5.5 V, IRESET = 0 mA,
–40°C < TJ < 105°C
5.2
VDD = 5.5 V, IRESET = 0 mA
6.5
VITN, VITP
SENSE input threshold voltage
accuracy
–1%
±0.5%
1%
VHYST
Hysteresis(1)
0.325%
0.575%
0.825%
ISENSE
Input current
VSENSE = 5 V
8
µA
VSENSE = 5 V, TPS389001-Q1,
TPS389012-Q1
10
100
nA
ICT
CT pin charge current
0.90
1.15
1.35
µA
VCT
CT pin comparator threshold voltage
1.17
1.23
1.29
V
RCT
CT pin pulldown resistance
When RESET is deasserted
200
Ω
VIL
Low-level input voltage (MR pin)
0.25 × VDD
V
VIH
High-level output voltage
0.7 x VDD
V
VOL
Low-level output voltage
VDD ≥ 1.5 V, IRESET = 0.4 mA
0.25
V
VDD ≥ 2.7 V, IRESET = 2 mA
0.25
VDD ≥ 4.5 V, IRESET = 3 mA
0.3
ILKG(OD)
Open-drain output leakage
High impedance,
VSENSE = VRESET = 5.5 V
250
nA
(1)
Overdrive = | (VIN / VTHRESH – 1) × 100% |.
7.6 Timing Requirements
over the operating junction temperature range of –40°C to +125°C (TA = TJ), 1.5 V ≤ VDD ≤ 5.5 V, MR = VDD, and 5% input
overdrive
(1) (unless otherwise noted); typical values are at V
DD = 5.5 V and TJ = 25°C
MIN
NOM
MAX
UNIT
tPD(f)
SENSE (falling) to RESET propagation delay
CT = open, VDD = 3.3 V
18
µs
CT = open, VDD = 5.5 V
8
tPD(r)
SENSE (rising) to RESET propagation delay
CT = open, VDD = 3.3 V
25
µs
tGI(SENSE)
SENSE pin glitch immunity
VDD = 5.5 V
9
µs
tGI(MR)
MR pin glitch immunity
VDD = 5.5 V
100
ns
tMRW
MR pin pulse duration to assert RESET
1
µs
td(MR)
MR pin low to out delay
250
ns
tSTRT
Startup delay
325
µs


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