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TPS2553DBVT 数据表(PDF) 5 Page - Texas Instruments

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部件名 TPS2553DBVT
功能描述  PRECISION ADJUSTABLE CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
PDF  31 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

TPS2553DBVT 数据表(HTML) 5 Page - Texas Instruments

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DEVICE INFORMATION
Charge
Pump
Driver
UVLO
Current
Limit
Thermal
Sense
IN
GND
EN
ILIM
OUT
FAULT
CS
Reverse
Voltage
Comparator
-
+
Current
Sense
Note A: TPS255xpartsenterconstantcurrentmode
duringcurrentlimitcondition; TPS255x-1 partslatchoff
(Note A)
8-msDeglitch
TPS2552
TPS2553, TPS2552-1, TPS2553-1
www.ti.com...................................................................................................................................... SLVS841C – NOVEMBER 2008 – REVISED SEPTEMBER 2009
Pin Functions
PIN
I/O
DESCRIPTION
NAME
TPS2552DBV
TPS2553DBV
TPS2552DRV
TPS2553DRV
EN
3
–
4
–
I
Enable input, logic low turns on power switch
EN
–
3
–
4
I
Enable input, logic high turns on power switch
GND
2
2
5
5
Ground connection; connect externally to
PowerPAD
Input voltage; connect a 0.1
µF or greater
IN
1
1
6
6
I
ceramic capacitor from IN to GND as close to the
IC as possible.
Active-low open-drain output, asserted during
FAULT
4
4
3
3
O
overcurrent, overtemperature, or reverse-voltage
conditions.
OUT
6
6
1
1
O
Power-switch output
External resistor used to set current-limit
ILIM
5
5
2
2
O
threshold; recommended 15 k
Ω ≤ RILIM ≤ 232
k
Ω.
Internally connected to GND; used to heat-sink
PowerPAD
–
–
PAD
PAD
the part to the circuit board traces. Connect
™
PowerPAD to GND pin externally.
Add -1 for Latch-Off version
FUNCTIONAL BLOCK DIAGRAM
Copyright © 2008–2009, Texas Instruments Incorporated
Submit Documentation Feedback
5
Product Folder Link(s): TPS2552 TPS2553 TPS2552-1 TPS2553-1



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