TPS2220A Datasheet

  • TPS2220A

  • 具有串行接口的 1A 单槽 PC 卡电源开关

  • 735.73KB

  • 31页

  • TI

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PARAMETER
LOGIC SECTION (CLOCK, DATA, LATCH, RESET, SHDN, OC)
I
I(/RESET)
(5)
TPS2220A, TPS2223A
TPS2224A, TPS2226A
SLVS428B 鈥?MAY 2002 鈥?REVISED SEPTEMBER 2004
TEST CONDITIONS
(1)
MIN
TYP
MAX
UNIT
RESET = 5.5 V
RESET = 0 V
SHDN = 5.5 V
SHDN = 0 V
LATCH = 5.5 V
LATCH = 0 V
0 V to 5.5 V
-1
-30
-1
-50
-20
1
-10
1
-3
50
碌A
I
I
Input current, logic
I
I(/SHDN) (5)
I
I(LATCH) (5)
I
I(CLOCK,
DATA)
-1
-1
2
1
1
V
0.8
V
V
碌A
V
IH
V
IL
V
O(sat)
I
lkg
V
I(3.3V)
V
hys(3.3V)
V
I(5V)
V
hys(5V)
t
df
V
I(POR)
High-level input voltage, logic
Low-level input voltage, logic
Output saturation voltage at OC
Leakage current at OC
I
O
= 2 mA
V
O(/OC)
= 5.5 V
3.3-V level below which all switches are Hi-Z
0.14
0
0.4
1
UVLO AND POR (POWER-ON RESET)
Input voltage at 3.3V pin, UVLO
UVLO hysteresis voltage at VA
(6)
Input voltage at 5V pin, UVLO
UVLO hysteresis voltage at 5V
(6)
Delay time for falling response, UVLO
(6)
Input voltage, power-on reset
(6)
3.3-V voltage below which POR is asserted causing a
RESET internally with all line switches open and all
discharge switches closed.
5-V level below which only 5V switches are Hi-Z
Delay from voltage hit (step from 3 V to 2.3 V) to
Hi-Z control (90% V
G
to GND)
2.3
2.4
2.7
100
2.5
100
4
1.7
2.9
V
mV
V
mV
碌s
V
(5)
(6)
LATCH has low-current pulldown. RESET and SHDN have low-current pullup.
Specified by design; not tested in production.
5

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