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TPS2231 Fiches technique(PDF) 5 Page - Texas Instruments

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No de pièce TPS2231
Description  ExpressCard TM POWER INTERFACE SWITCH
Download  35 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS2231 Fiches technique(HTML) 5 Page - Texas Instruments

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SWITCHING CHARACTERISTICS
TPS2231
TPS2236
SLVS536E – JULY 2004 – REVISED SEPTEMBER 2006
ELECTRICAL CHARACTERISTICS (continued)
T
J = 25°C, VI(3.3VIN) = VI(AUXIN) = 3.3 V, VI(1.5VIN) = 1.5 V, VI(/SHDNx), VI(/STBYx) = 3.3 V, VI(/CPPEx) = VI(/CPUSBx) = 0 V,
V
I(/SYSRST) = 3.3 V, OCx and RCLKENx and PERSTx are open, all voltage outputs unloaded (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
3.3VOUT falling
2.7
3
PERST assertion threshold of output voltage (PERST
asserted when any output voltage falls below the
AUXOUT falling
2.7
3
V
threshold)
1.5VOUT falling
1.2
1.35
3.3VOUT, AUXOUT, or 1.5VOUT
PERST assertion delay from output voltage
500
ns
falling
3.3VOUT, AUXOUT, and 1.5VOUT
PERST de-assertion delay from output voltage
4
10
20
ms
rising within tolerance
Max time from SYSRST asserted or
PERST assertion delay from SYSRST
500
ns
de-asserted
3.3VOUT, AUXOUT, or 1.5VOUT
tW(PERST)
PERST minimum pulse width
falling out of tolerance or triggered
100
250
µs
by SYSRST
PERST output low voltage
0.4
V
IO(PERST) = 500 µA
PERST output high voltage
2.4
V
OC output low voltage
IO(/OC) = 2 mA
0.4
V
OC leakage current
VO(/OC) = 3.6 V
1
µA
Falling into or out of an overcurrent
OC deglitch
6
20
mS
condition
UNDERVOLTAGE LOCKOUT (UVLO)
3.3VIN level, below which 3.3VIN
3.3VIN UVLO
2.6
2.9
and 1.5VIN switches are off
1.5VIN level, below which 3.3VIN
1.5VIN UVLO
1
1.25
V
and 1.5VIN switches are off
AUXIN level, below which all
AUXIN UVLO
2.6
2.9
switches are off
UVLO hysteresis
100
mV
T
J = 25°C, VI(3.3VIN) = VI(AUXIN) = 3.3 V, VI(1.5VIN) = 1.5 V, VI(/SHDNx), VI(/STBYx) = 3.3 V, VI(/CPPEx) = VI(/CPUSBx) = 0 V,
V
I(/SYSRST) = 3.3 V, OCx and RCLKENx and PERSTx are open, all voltage outputs unloaded (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
3.3VIN to 3.3VOUT
CL(3.3VOUT) = 0.1 µF, IO(3.3VOUT) = 0 A
0.1
3
AUXIN to AUXOUT
CL(AUXOUT) = 0.1 µF, IO(AUXOUT) = 0 A
0.1
3
1.5VIN to 1.5VOUT
CL(1.5VOUT) = 0.1 µF, IO(1.5VOUT) = 0 A
0.1
3
tr
Output rise times
ms
3.3VIN to 3.3VOUT
CL(3.3VOUT) = 100 µF, RL = VI(3.3VIN)/1 A
0.1
6
AUXIN to AUXOUT
CL(AUXOUT) = 100 µF, RL = VI(AUXIN)/0.250 A
0.1
6
1.5VIN to 1.5VOUT
CL(1.5VOUT) = 100 µF, RL = VI(1.5VIN)/0.500 A
0.1
6
3.3VIN to 3.3VOUT
CL(3.3VOUT) = 0.1 µF, IO(3.3VOUT) = 0 A
10
150
AUXIN to VAUXOUT
CL(AUXOUT) = 0.1 µF, IO(AUXOUT) = 0 A
10
150
µs
Output fall times
1.5VIN to 1.5VOUT
CL(1.5VOUT) = 0.1 µF, IO(1.5VOUT) = 0 A
10
150
when card removed
tf
(both CPUSB and
3.3VIN to 3.3VOUT
CL(3.3VOUT) = 20 µF, IO(3.3VOUT) = 0 A
2
30
CPPE de-asserted)
AUXIN to VAUXOUT
CL(AUXOUT) = 20 µF, IO(AUXOUT) = 0 A
2
30
ms
1.5VIN to 1.5VOUT
CL(1.5VOUT) = 20 µF, IO(1.5VOUT) = 0 A
2
30
5
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