TPS2149
TPS2159
SLVS401 – AUGUST 2001
electrical characteristics over recommended operating junction-temperature range,
2.9 V ≤ V ≤ 5.5 V, V = 0 V, T = –40°C to 100°C (unless otherwise noted)
I(VIN)
I(ENx)
J
enable input, ENx (active low)
PARAMETER
TEST CONDITIONS
MIN
TYP
TYP
MAX
UNIT
V
V
V
High-level input voltage
Low-level input voltage
Input current, pullup (source)
2
IH
0.8
5
V
IL
I
I
V
= 0 V
µA
I(ENx)
I(ENx)
enable input, ENx (active high)
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
V
V
V
High-level input voltage
Low-level input voltage
Input current, pulldown (sink)
2
IH
0.8
5
V
IL
I
I
V
= 5 V
µA
logic output, OC
PARAMETER
TEST CONDITIONS
MIN
TYP
TYP
MAX
MAX
UNIT
Current sinking at V = 0.4 V
O
1
mA
thermal shutdown characteristics
PARAMETER
TEST CONDITIONS
MIN
120
110
155
UNIT
First thermal shutdown (shuts down switch or regulator
in overcurrent)
Occurs at or above specified temperature
when overcurrent is present.
Recovery from thermal shutdown
°C
Second thermal shutdown (shuts down all switches and Occurs on rising temperature, irrespective of
regulator)
overcurrent.
Second thermal shutdown hysteresis
10
5
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