參數(shù)資料
型號(hào): TPS2231MRGP
廠商: Texas Instruments, Inc.
英文描述: ExpressCard TM POWER INTERFACE SWITCH
中文描述: 商標(biāo)的ExpressCard電源接口開關(guān)
文件頁(yè)數(shù): 5/35頁(yè)
文件大小: 1352K
代理商: TPS2231MRGP
www.ti.com
SWITCHING CHARACTERISTICS
T
J
= 25°C, V
I(3.3VIN)
= V
I(AUXIN)
= 3.3 V, V
I(1.5VIN)
= 1.5 V, V
I(/SHDNx)
, V
I(/STBYx)
= 3.3 V, V
I(/CPPEx)
= V
I(/CPUSBx)
= 0 V,
V
I(/SYSRST)
= 3.3 V, OCx and RCLKENx and PERSTx are open, all voltage outputs unloaded (unless otherwise noted)
TPS2231
TPS2236
SLVS536E–JULY 2004–REVISED SEPTEMBER 2006
ELECTRICAL CHARACTERISTICS (continued)
T
J
= 25°C, V
= V
= 3.3 V, V
= 1.5 V, V
, V
= 3.3 V, V
= V
= 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
3.3VOUT falling
AUXOUT falling
1.5VOUT falling
3.3VOUT, AUXOUT, or 1.5VOUT
falling
3.3VOUT, AUXOUT, and 1.5VOUT
rising within tolerance
Max time from SYSRST asserted or
de-asserted
3.3VOUT, AUXOUT, or 1.5VOUT
falling out of tolerance or triggered
by SYSRST
MIN
2.7
2.7
1.2
TYP
MAX
UNIT
3
3
PERST assertion threshold of output voltage (PERST
asserted when any output voltage falls below the
threshold)
V
1.35
PERST assertion delay from output voltage
500
ns
PERST de-assertion delay from output voltage
4
10
20
ms
PERST assertion delay from SYSRST
500
ns
t
W(PERST)
PERST minimum pulse width
100
250
μs
PERST output low voltage
PERST output high voltage
OC output low voltage
OC leakage current
0.4
V
V
V
μA
I
O(PERST)
= 500 μA
2.4
I
O(/OC)
= 2 mA
V
O(/OC)
= 3.6 V
Falling into or out of an overcurrent
condition
0.4
1
OC deglitch
6
20
mS
UNDERVOLTAGE LOCKOUT (UVLO)
3.3VIN level, below which 3.3VIN
and 1.5VIN switches are off
1.5VIN level, below which 3.3VIN
and 1.5VIN switches are off
AUXIN level, below which all
switches are off
3.3VIN UVLO
2.6
2.9
1.5VIN UVLO
1
1.25
V
AUXIN UVLO
2.6
2.9
UVLO hysteresis
100
mV
PARAMETER
TEST CONDITIONS
MIN
0.1
0.1
0.1
0.1
0.1
0.1
10
10
10
TYP
MAX
UNIT
3.3VIN to 3.3VOUT
AUXIN to AUXOUT
1.5VIN to 1.5VOUT
3.3VIN to 3.3VOUT
AUXIN to AUXOUT
1.5VIN to 1.5VOUT
3.3VIN to 3.3VOUT
AUXIN to VAUXOUT
1.5VIN to 1.5VOUT
3.3VIN to 3.3VOUT
AUXIN to VAUXOUT
1.5VIN to 1.5VOUT
C
L(3.3VOUT)
= 0.1 μF, I
O(3.3VOUT)
= 0 A
C
L(AUXOUT)
= 0.1 μF, I
O(AUXOUT)
= 0 A
C
L(1.5VOUT)
= 0.1 μF, I
O(1.5VOUT)
= 0 A
C
L(3.3VOUT)
= 100 μF, R
L
= V
I(3.3VIN)
/1 A
C
L(AUXOUT)
= 100 μF, R
L
= V
I(AUXIN)
/0.250 A
C
L(1.5VOUT)
= 100 μF, R
L
= V
I(1.5VIN)
/0.500 A
C
L(3.3VOUT)
= 0.1 μF, I
O(3.3VOUT)
= 0 A
C
L(AUXOUT)
= 0.1 μF, I
O(AUXOUT)
= 0 A
C
L(1.5VOUT)
= 0.1 μF, I
= 0 A
C
L(3.3VOUT)
= 20 μF, I
O(3.3VOUT)
= 0 A
C
L(AUXOUT)
= 20 μF, I
O(AUXOUT)
= 0 A
C
L(1.5VOUT)
= 20 μF, I
O(1.5VOUT)
= 0 A
3
3
3
6
6
6
t
r
Output rise times
ms
150
150
150
30
30
30
μs
Output fall times
when card removed
(both CPUSB and
CPPE de-asserted)
t
f
2
2
2
ms
5
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