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TPS2145IPWPR Scheda tecnica(PDF) 7 Page - Texas Instruments

Il numero della parte TPS2145IPWPR
Spiegazioni elettronici  LDO AND DUAL SWITCH WITH CONTROLLED RISE TIMES FOR DSP AND PORTABLE APPLICATIONS
PDF  34 Pages
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

TPS2145IPWPR Scheda tecnica(HTML) 7 Page - Texas Instruments

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TPS2145, TPS2147
TPS2155, TPS2157
SLVS333 − AUGUST 2001
7
www.ti.com
electrical characteristics over recommended operating junction-temperature range,
2.9 V
≤ VI(VIN/SWIN1) ≤ 5.5 V, 2.9 V ≤ VI(SWIN2) ≤ 5.5 V, VI(ENx) = 0 V or VI(ENx) = 5 V,
VI(LDO_EN) = 5 V, TJ = −40°C to 100°C (unless otherwise noted)
enable input, ENx (active low)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
II
Input current, pullup (source)
VI(ENx) = 0 V
5
µA
enable input, ENx (active high)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
II
Input current, pulldown (sink)
VI(ENx) = 5 V
5
µA
enable input, LDO_EN (active high)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
II
Input current, pulldown
VI(LDO_EN) = 5 V
5
µA
Falling-edge deglitch (see Note 1)
50
µs
NOTE 1. Specified by design, not tested in production.
logic output, OCx
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Current sinking at VO = 0.4 V
1
mA
thermal shutdown characteristics
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
First thermal shutdown (shuts down switch or regulator
in overcurrent)
Occurs at or above specified temperature
when overcurrent is present.
120
Recovery from thermal shutdown
110
°C
Second thermal shutdown (shuts down all switches and
regulator)
Occurs on rising temperature, irrespective of
overcurrent.
155
°C
Second thermal shutdown hysteresis
10



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