Datasheet

TPS2556
TPS2557
SLVS931A – NOVEMBER 2009– REVISED FEBRUARY 2012 www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
over recommended operating conditions, V
/EN
= 0 V, or V
EN
= V
IN
(unless otherwise noted)
PARAMETER TEST CONDITIONS
(1)
MIN TYP MAX UNIT
SUPPLY CURRENT
I
IN_off
Supply current, low-level output V
IN
= 6.5 V, No load on OUT, V
EN
= 6.5 V or V
EN
= 0 V 0.1 2.0 μA
R
ILIM
= 24.9 kΩ 95 120 μA
I
IN_on
Supply current, high-level output V
IN
= 6.5 V, No load on OUT
R
ILIM
= 100 kΩ 85 110 μA
I
REV
Reverse leakage current V
OUT
= 6.5 V, V
IN
= 0 V T
J
= 25 °C 0.01 1 μA
UNDERVOLTAGE LOCKOUT
UVLO Low-level input voltage, IN V
IN
rising 2.35 2.45 V
Hysteresis, IN 35
(3)
mV
FAULT FLAG
V
OL
Output low voltage, FAULT I
/FAULT
= 1 mA 180 mV
Off-state leakage V
/FAULT
= 6.5 V 1 μA
FAULT deglitch FAULT assertion or de-assertion due to overcurrent condition 6 9 13 ms
THERMAL SHUTDOWN
OTSD2 Thermal shutdown threshold 155 °C
Thermal shutdown threshold in
OTSD 135 °C
current-limit
Hysteresis 20
(3)
°C
(3) These parameters are provided for reference only, and do no constitute part of TI's published specifications for purposes of TI's product
warranty.
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