參數(shù)資料
型號(hào): TPS2343DDPR
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 6-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO80
封裝: GREEN, PLASTIC, HTSSOP-80
文件頁數(shù): 42/42頁
文件大?。?/td> 942K
代理商: TPS2343DDPR
TPS2343
SLUS644B FEBRUARY 2005 MAY 2005
9
www.ti.com
ELECTRICAL CHARACTERISTICS,
P12VIN = 12 V, DIGVCC = 3.3 V, M12VIN = 12 V, 3VAUXIN = 3.3 V, V5IN = 5 V, RMISET = 6.04 k
, all outputs
unloaded, TA = 40_C to 85_C, (unless otherwise noted) (1)(2)(3)
3.3 VAUX and PME
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
3VAUX overcurrent threshold
0.8
1.1
1.45
A
3VAUXI to 3VAUX switch on resistance
SW = low, 3VAUXG = 10 V
300
400
m
3VAUXI undervoltage threshold
SW = low
1.9
2.2
2.9
V
3VAUXI supply current, 3VAUX off
SW = high
1000
2000
A
3VAUXG turn-on current
SW = low, 3VAUXG = 3.3 V
3
5
7
A
3VAUXG turn-off resistance
SW = high, 0.1 V < 3VAUXG < 0.5 V
3
8
30
3VAUX turn-on time with no gate capacitor
C3VAUXG = 0 pF, 10% to 90% measurement
200
350
s
3VAUX turn-on slew rate with gate capacitor
C3VAUXG = 22 nF, 10% to 90% measurement
0.13
0.23
0.32
V/ms
3VAUX bleed current
SW = high, 3VAUX = 3.0 V
8
28
mA
3VAUX turn-off time from SW
From SW > 2.0 V to 3VAUX < 0.5 V,
C3VAUXG = 22 nF
1.2
5.0
ms
3VAUX turn-off time from Fault
From 3VAUX overcurrent fault
17
25
s
PME turn-on time from 3VAUX
From 3VAUX > 3.0 V, C3VAUX = 150 F
6
10
17
ms
PME turn-off time from SW
From SW > 2.0 V
4
s
PME turn-off time from Fault
From 3VAUX overcurrent fault
4
s
PME switch on resistance
SW = low
10
20
3VAUX output rising threshold to PME switch
closed
2.5
3.0
V
DC Logic Characteristics
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input high voltage (all digital inputs)
2.0
Input low voltage (all digital inputs)
0.8
Input hysteresis (PGOOD)
0.15
0.60
Output high voltage (all push-pull outputs)
IL = 4 mA
2.4
2.8
V
Output low voltage (ATTLED, PWRLED)
IL = 8 mA
0.5
V
Output low voltage (ATTLED, PWRLED)
IL = 24 mA
0.4
0.8
Output low voltage (all other outputs)
IL = 4 mA
0.2
0.5
Input pull-up resistor impedance
For inputs with pull-up resistors (see pin de-
scriptions)
30
200
k
PCIXCAP threshold between 33 MHz and 533
MHz
0.3
0.4
0.5
PCIXCAP threshold between 533 MHz and 266
MHz
1.1
1.2
1.3
V
PCIXCAP threshold between 266 MHz and 66
MHz
1.95
2.05
2.15
V
PCIXCAP threshold between 66 MHz and 133
MHz
2.8
2.9
3.0
NOTES: (1). All voltages are with respect to DIGGND unless otherwise stated.
(2) Currents are positive into and negative out of the specified terminal.
(3) When references to lines of individual slots are given without the slot identifier, the statement applies to lines on each slot.
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