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參數(shù)資料
| 型號： | TPS2350DRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO14 |
| 封裝： | GREEN, PLASTIC, MS-012AB, SOIC-14 |
| 文件頁數(shù)： | 21/26頁 |
| 文件大?。?/td> | 596K |
| 代理商： | TPS2350DRG4 |
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SLUS574C
– JULY 2003 – REVISED MARCH 2011
ELECTRICAL CHARACTERISTICS (continued)
–VINA = –48 V, –VINB = 0 V, UV = 2.5 V, OV = 0.5 V, SENSE = 0 V, RAMP = 0 V, SOURCE = more negative of –VINA
and
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Overload Comparator
VTH_OL
SENSE current overload threshold
100
120
140
mV
tRSP
Response time
SENSE
– SOURCE = 200 mV
2
4
7
s
Fault Timer
FLTTIM low-level output voltage,
VOL
UV =
–48 V
5
mV
to
–VINA
FLTTIM charging current, current limit
ICHG
FLTTIM
– SOURCE = 2 V
–54
–50
–41
A
mode
FLTTIM fault threshold voltage to
VFLT
3.75
4.00
4.25
SOURCE
V
VRST
Fault reset threshold to SOURCE
0.5
IDSG
FLTTIM Discharge current, retry mode
FLTTIM
– SOURCE = 2 V
0.38
0.75
A
SENSE
– SOURCE = 80 mV,
D
Output duty cycle during retry cycles
1%
1.5%
FLTTIM
SOURCE = 2 V
FLTTIM discharge current, timer reset
FLTTIM
SOURCE = 2 V,
IRST
1
mA
mode
SENSE = 2 V
Logic Outputs (FLT, PG)
IOHFLT
FLT high-level output leakage current
UV =
–48 V, FLT – SOURCE = 80 V
–10
10
A
IOHPG
PG high-level output leakage current
UV =
–45 V, PG – SOURCE = 80 V
–10
10
SENSE
–SOURCE = 80 mV,
RDS(on)
FLT ON resistance
FLTTIM
–SOURCE = 5 V,
50
80
Ω
I(FLT) = 1 mA
RDS(on)
PG ON resistance
UV =
–48 V, IO(PG) = 1 mA
50
80
Supply Selector
VTHA
Threshold voltage,
–VINA falling
–VINB = –48 V, –VINA falling
–48.45
–48.40
–48.35
V
VTHB
Threshold voltage,
–VINB falling
–VINA = –48 V, –VINB falling
–48.45
–48.40
–48.35
–VINA = 0 V, –VINB = –48 V,
ISINK
GATA sink current
30
80
mA
GATA =
–41 V
–VINA = –48 V, –VINB = –0 V,
ISOURCE
GATA source current
–50
–20
A
GATA =
–41 V
–VINA = –48 V, –VINB = –0 V,
ISINK
GATB sink current
30
80
mA
GATB =
–41 V
–VINA = 0 V, –VINB = –48 V,
ISOURCE
GATB source current
–50
–20
A
GATB =
–41 V
VOLA
GATA low voltage to
–VINA
VINA = 0 V,
–VINB = –48 V
0.1
VOLA
GATA high voltage to
–VINA
–VINA = –48 V, –VINB = 0 V
11
14
17
V
VOLB
GATB low voltage to
–VINB
–VINA = –48 V, –VINB = 0 V
0.1
VOLB
GATB high voltage to
–VINB
–VINA = 0 V, –VINB = –48 V
11
14
17
4
Copyright
2003–2011, Texas Instruments Incorporated
Product Folder Link(s): TPS2350
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