TPS24710 Datasheet, PDF (1/34 Pages) Texas Instruments – 2.5-V to 18-V High-Efficiency Power-Limiting Hot-Swap Controller

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TPS24710, TPS24711
TPS24712, TPS24713
SLVSAL2C – JANUARY 2011 – REVISED MAY 2011
2.5-V to 18-V High-Efficiency Power-Limiting Hot-Swap Controller
Check for Samples: TPS24710, TPS24711, TPS24712, TPS24713
FEATURES
1
• 2.5-V to 18-V Operation
• Accurate Current Limiting for Startup
• Programmable FET SOA Protection
• Accurate 25-mV Current-Sense Threshold
• Power-Good Output
• Fast Breaker for Short-Circuit Protection
• Programmable Fault Timer
• Programmable UV Threshold
• Drop-In Upgrade for LTC4211 – No Layout
Changes
• PG, FLT Active-High and Active-Low Versions
• MSOP-10 Package
APPLICATIONS
• Server Backplanes
• Storage Area Networks (SAN)
• Medical Systems
• Plug-In Modules
• Base Stations
DESCRIPTION
The TPS24710/11/12/13 is an easy-to-use, 2.5 V to 18 V, hot-swap controller that safely drives an external
N-channel MOSFET. The programmable current limit and fault time protect the supply and load from excessive
current at startup. After startup, currents above the user-selected limit will be allowed to flow until programmed
timeout – except in extreme overload events when the load is immediately disconnected from source. The low,
25mV current sense threshold is highly accurate and allows use of smaller, more efficient sense resistors
yielding lower power loss and smaller footprint.
Programmable power limiting ensures the external MOSFET operates inside its safe operating area (SOA) at all
times. This allows the use of smaller MOSFETS while improving system reliability. Power good and fault outputs
are provided for status monitoring and downstream load control.
TYPICAL APPLICATION (12 V at 10 A)
R_SENSE
M₁
V_IN
2 mΩ
CSD16403Q5
C₁
0.1 μF
R_GATE
3V
10 Ω
V_OUT
C_OUT
470 μF
R₁
130 kΩ
R₂
18.7 kΩ
VCC
EN
TIMER
SENSE
GATE OUT
PGb (PG)
TPS2471x
PROG
FLTb (FLT)
GND
R₄
3.01 kΩ
R₅
3.01 kΩ
C_T
56 nF
R_PROG
53.6 kΩ
V_UVLO = 10.8 V
I_LMT = 12 A
t_FAULT = 7.56 ms
PGb (PG)
EN
PROG
TIMER
GND
PINOUT
DGS Package
(Top View)
1
10
2
9
3
8
4
7
5
6
FLTb (FLT)
VCC
SENSE
GATE
OUT
TPS24710 TPS24711 TPS24712 TPS24713
Latch Off
X
X
Retry
X
X
PG
L
L
H
H
FLT
L
L
H
H
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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011, Texas Instruments Incorporated