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參數(shù)資料
型號: TPS24720RGTR
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC16
封裝: 3 X 3 MM, GREEN, PLASTIC, QFN-16
文件頁數(shù): 1/37頁
文件大小: 2258K
代理商: TPS24720RGTR
1
2
3
4
EN
OV
PROG
IMON
TIMER
SET
GND
OUT
12
11
10
9
16
VCC
ENSD
SENSE
PGb
GATE
LA
TCH
FFLTb
FL
Tb
15
14
13
5
6
7
8
Thermal
Pad
RGT Package
(Top View)
PINOUT
TYPICAL APPLICATION (12 V at 10 A)
TPS24720
R
2 m
SENSE
M
CSD16403Q5
1
C
T
56 nF
VCC
OUT
GATE
SENSE
PGb
PROG
TIMER
GND
OV
EN
R
2.94
2
k
R
90.9 k
1
R
3
10 k
R
5
3.01 k
LATCH
IMON
R
4
3.01 k
FLTb
FFLTb
R
6
3.01 k
ENSD
SET
R
SET
51.1
R
PROG
53.6 k
R
IMON
1.43 k
V
UVLO
OV
LMT
FAULT
= 10.83 V
V
= 14.02 V
I
= 12 A
t
= 7.56 ms
C
1
0.1 F
R
7
C
OUT
470 F
V
IN
V
OUT
3 V
R
GATE
10
SLVSAL1B
– MARCH 2011 – REVISED MAY 2011
2.5-V to 18-V High-Efficiency Adjustable Power-Limiting Hot-Swap Controller With Current
Monitor and Overvoltage Protection
Check for Samples: TPS24720
1
FEATURES
APPLICATIONS
2.5-V to 18-V Operation
Server Backplanes
Accurate Current Limiting for Startup
Storage Area Networks (SAN)
Programmable FET SOA Protection
Telecommunications Mezzanine Cards
Adjustable Current Sense Threshold
Medical Systems
Programmable Fault Timer
Plug-In Modules
Power-Good Output
Base Stations
Fast Breaker for Short-Circuit Protection
Analog Load-Current Monitor Output
Programmable UV and OV
Low-current Standby Mode
FET Fault Detection Flag
3-mm
× 3-mm, 16-Pin QFN package
DESCRIPTION
The TPS24720 is an easy-to-use, full-featured protection device for 2.5-V to 18-V power rails. This hot-swap
controller drives an external N-channel MOSFET, while protecting source, load and external MOSFET against
multiple potentially damaging events. During startup, load current and MOSFET power dissipation are limited to
user-selected values. After startup, currents above the user-selected limit will be allowed to flow until
programmed timeout
– except in extreme overload events when load is immediately disconnected from source.
Programmable power limiting ensures the external MOSFET operates inside its safe operating area (SOA) at all
times. This allows use of smaller FETs while improving system reliability. Power good, Fault, FET Fault, and
current monitor outputs are provided for system status monitoring and downstream load control.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright
2011, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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