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TPS2491DGSR Datasheet(PDF) 4 Page - Texas Instruments

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No. de pieza TPS2491DGSR
Descripción Electrónicos  POSITIVE HIGH-VOLTAGE POWER-LIMITING HOTSWAP CONTROLLER
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS2491DGSR Datasheet(HTML) 4 Page - Texas Instruments

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TPS2490
TPS2491
SLVS503 – NOVEMBER 2003
ELECTRICAL CHARACTERISTICS (continued)
unless otherwise noted, minimum and maximum limits apply across the recommended operating junction temperature and
voltage range, V
TIMER = 0 V, and all outputs unloaded; typical specifications are at TJ = 25°C, VVCC = 48 V, VTIMER = 0 V, and
all outputs unloaded; positive currents are into pins.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
PG threshold voltage, VOUT falling, PG goes
VPGTH
VSENSE = VVCC, measure V(VCC-OUT)
2.2
2.7
3.2
V
low
∆V
PGT
PG threshold hysteresis voltage, V(SENSE-OUT)
VSENSE = VVCC
1.4
V
PG deglitch delay, detection to output, rising
tDPG
VSENSE = VVCC
5
9
15
ms
and falling edges (2)
Leakage current, PG false, open drain
10
µA
OUTPUT VOLTAGE FEEDBACK INPUT (OUT)
VOUT = VVCC, VEN = Hi, sinking
8
20
µA
IOUT
Bias current
VOUT = GND, VEN = Lo, sourcing
18
40
µA
ENABLE INPUT (EN)
VEN_H
Threshold, VEN going high
1.32
1.35
1.38
V
VEN_L
Threshold, VEN going low
1.22
1.25
1.28
V
VEN hysteresis
(2)
100
mV
Leakage current
VEN = 48 V
1
µA
INPUT SUPPLY UVLO (VCC)
VVCC turn on
Rising
8.4
8.8
V
VVCC turn off
Falling
7.5
8.3
V
Hysteresis(2)
75
mV
(2)
Not tested in production.
4


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