Datasheet

TPS22941, TPS22942, TPS22943, TPS22944, TPS22945
www.ti.com SLVS832C –NOVEMBER 2008–REVISED NOVEMBER 2009
ELECTRICAL CHARACTERISTICS (continued)
V
IN
= 1.62 V to 5.5 V, T
A
= –40°C to 85°C (unless otherwise noted)
PARAMETER TEST CONDITIONS T
A
MIN TYP
(1)
MAX UNIT
UVLO Undervoltage shutdown V
IN
increasing Full 1.32 1.42 1.52 V
Undervoltage shutdown
Full 45 mV
hysteresis
Control Output (OC)
V
IN
= 5 V, I
SINK
= 10 mA 0.1 0.2
OC output logic low
Vol Full V
voltage
V
IN
= 1.8 V, I
SINK
= 10 mA 0.1 0.3
OC output high leakage
Ioz V
IN
= 5 V, Switch ON Full 0.5 μA
current voltage
Control Input (ON)
VIN = 1.8 V Full 1.1 V
VIN = 2.5 V Full 1.3 V
ON high-level input
Vih
voltage
VIN = 3.3 V Full 1.4 V
VIN = 5.5 V Full 1.7 V
VIN = 1.8 V Full 0.5 V
VIN = 2.5 V Full 0.7 V
Vil ON low-level input voltage
VIN = 3.3 V Full 0.8 V
VIN = 5.5 V Full 0.9 V
ON high-level input
Ii V
IN
= 1.8 V to 5 V, Switch ON Full 1 μA
leakage current
SWITCHING CHARACTERISTICS
V
IN
= 3.3 V, R
L
= 500 Ω, C
L
= 0.1 μF, T
A
= 25°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
ON
Turn-ON time R
L
= 500 Ω, C
L
= 0.1 μF 60 μs
t
OFF
Turn-OFF time R
L
= 500 Ω, C
L
= 0.1 μF 30 μs
t
r
V
OUT
rise time R
L
= 500 Ω, C
L
= 0.1 μF 10 μs
t
f
V
OUT
fall time R
L
= 500 Ω, C
L
= 0.1 μF 90 μs
t
BLANK
Over current blanking time TPS22941/2/5 5 10 20 ms
t
RSTART
Auto-restart time TPS22941/2/5 40 80 160 ms
V
IN
= V
ON
= 3.3 V, moderate overcurrent condition 9 μs
Short-circuit response time
V
IN
= V
ON
= 3.3 V, hard short 4 μs
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