參數(shù)資料
型號(hào): TPS2459RHB
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: 2-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32
封裝: PLASTIC, QFN-32
文件頁(yè)數(shù): 1/48頁(yè)
文件大?。?/td> 852K
代理商: TPS2459RHB
15
28
26
10
IN12
EN12
EN3
OREN
TPS2459
16 IN3
17
4
7
20
OUT3
PG12
FLT12
PG3
19
5
21
FLT3
SUM12
SUM3
14
SENP
13
SET
12
SENM
11
PASS
6
BLK
8
OUT12
UDG-09031
GND
3320 W
6810 W
AdvancedMCTM
12 V
3.3 V
422 W
0.005 W
12 V
V
IN
3.3 V
V
IN
Status Outputs
2
3
30
SDA
SCL
A0
Enable
I2C Interface
18
A1
25
A2
{
22 VDD3
{
1
VINT
100 W
www.ti.com
SLUS917D – FEBRUARY 2009 – REVISED MAY 2010
12-V/3.3-V Hot Swap and ORing Controller with I2C
and Load Current Monitor for AdvancedMC
Check for Samples: TPS2459
1
FEATURES
APPLICATIONS
ATCA Carrier Boards
23
ATCA AdvancedMC Compliant
MicroTCAPower Modules
Full Power Control for an AdvancedMC
AdvancedMC Slots
Module
Systems Using 12-V and 3.3-V Channels
Independently Programmable 12-V Current
Base Stations
Limit and Fast Trip
DESCRIPTION
3.3-V and 12-V FET ORing Control for
MicroTCA
The
TPS2459
hot-plug
controller
performs
all
necessary
power
interface
functions
for
an
12-V Output Shuts Off If 3.3-V Output Shuts
AdvancedMC (Advanced Mezzanine Card). A fully
Off
integrated 3.3-V channel provides inrush control,
Internal 3.3-V Current Limit and ORing
over-current protection, and FET ORing. A 12-V
I2C Power Good and Fault Reporting
channel provides the same functions using external
FETs and sense resistors. The 3.3-V current limit is
I2C Programmable Fault Times and Limits
factory set to AdvancedMC compliant levels while
FET Status Bits for 3.3-V and 12-V Channels
the 12-V current limit is programmed using external
Load Current Monitors for 12-V and 3.3-V
sense
resistors.
The
accurate
current
sense
comparators of the TPS2459 satisfy the narrow
32-Pin QFN Package
ATCA AdvancedMC current limit requirements.
TYPICAL APPLICATION
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.
2
AdvancedMC, MicroTCA are trademarks of PCI Industrial Computer Manufacturers Group.
3
I2C is a trademark of Phillips.
PRODUCTION DATA information is current as of publication date.
Copyright 2009–2010, 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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