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TPS40490MHRHDT Fiches technique(PDF) 9 Page - Texas Instruments

No de pièce TPS40490MHRHDT
Description  5-V to 60-V WIDE-INPUT SYNCHRONOUS PWM BUCK CONTROLLER
Download  38 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS40490MHRHDT Fiches technique(HTML) 9 Page - Texas Instruments

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TPS40490
www.ti.com
SLVSCB4 – OCTOBER 2013
ELECTRICAL CHARACTERISTICS (continued)
TJ = –40°C to 150°C, VIN = 48 V, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
OVERCURRENT PROTECTION (LOW-SIDE MOSFET SENSING)
ILIM_PIN
ILIM pin voltage
5 V < VIN < 60 V, TJ = 25°C
1.23
V
Temperature coefficient of ILIM
ILIM_Tc
5 V < VIN < 60 V
25
ppm
current
THERMAL SHUTDOWN
TTRIP
Thermal S/D trip point
Rising temperature
160
°C
THYST
Thermal S/D hysteresis
Device re-starts
140
°C
TTRIP_DEGLITCH
Thermal S/D deglitch
110
µS
POWER GOOD
Output falling
80
%
VUVBUCKX
Under voltage threshold
Output rising (PGOOD asserted)
90
%
tBUCKUV_deglitch
Deglitch time
Both edges
110
us
tVINUV_deglitch
Deglitch time
Both edges
110
us
tON_HICCUP
Hiccup mode ON time
VUVBUCKX asserted
10
ms
Converter disabled. Once tOFF_HICCUP elapses, converter
tOFF_HICCUP
Hiccup mode OFF time
100
ms
will go through start-up again
Threshold voltage for buck OVP %
VOVBUCKX
Output rising (high side FET will be forced off)
114
%
of Vset
Copyright © 2013, Texas Instruments Incorporated
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