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TPS2493PW датащи(PDF) 6 Page - Texas Instruments

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номер детали TPS2493PW
подробное описание детали  Positive High-Voltage Power-Limiting Hotswap Controller With Analog Current Monitor Output
Download  33 Pages
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI - Texas Instruments

TPS2493PW датащи(HTML) 6 Page - Texas Instruments

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background image
UVEN
1
2
3
4
5
6
7
14
13
12
11
10
9
8
VREF
PROG
TIMER
OV
IMON
GND
VCC
SENSE
GATE
OUT
NC
FLT
PG
PW PACKAGE
(top view)
TPS2492
TPS2493
SLUSA65A – JULY 2010 – REVISED AUGUST 2010
www.ti.com
TERMINAL FUNCTIONS
TERMINAL
I/O
DESCRIPTION
NAME
NO.
UVEN
1
I
A low input inhibits GATE. A logic input can drive this pin as an enable.
VREF
2
O
4-V reference voltage used to set the power threshold on PROG pin.
PROG
3
I
FET power-limit programming pin
TIMER
4
I/O
A capacitor from TIMER to ground sets the fault timer period.
OV
5
I
Overvoltage sensing input. A high input inhibits GATE.
IMON
6
O
Current monitor output, nominally VIMON = 48 x (VVCC-SENSE).
GND
7
PWR
Ground
PG
8
O
Active low power good output. This is driven by VVCC-SENSE.
Active low fault indicator output. FLT indicates the fault timer has expired. FLT is
FLT
9
O
reset by UVEN, UVLO, or automatic restart.
NC
10
No connect
FET source voltage (output) sensing pin. Gate is clamped to a diode drop below
OUT
11
I
OUT.
GATE
12
O
Gate driver output for external FET.
Current sensed as VVCC-SENSE and the FET VDS as VSENSE-OUT. For low FET VDS,
SENSE
13
I
current limits at 50mV.
VCC
14
I
Input supply and current sense positive input
6
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Product Folder Link(s): TPS2492 TPS2493


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