參數(shù)資料
型號: TPS2346PWRG4
廠商: Texas Instruments
文件頁數(shù): 1/30頁
文件大小: 490K
描述: IC HOT SWAP POWER MGR 24-TSSOP
標(biāo)準(zhǔn)包裝: 2,000
類型: 熱交換控制器
應(yīng)用: 光纖學(xué)網(wǎng)絡(luò)(ONET)
內(nèi)部開關(guān):
電源電壓: -5.2V,3.3V,5V,5.15V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 24-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 24-TSSOP
包裝: 帶卷 (TR)
TPS2346
SLUS529  MAY 2002
OPTICAL NETWORK
HOT SWAP POWER MANAGER
1
www.ti.com
 
FEATURES
D  Enables Hot Swap in High Availability Optical
Network Systems
D   Programmable Current Slew Rate
D   Power Supply Sequencing
D   Sense Resistors Set Peak Current (IMAX)
D   Overcurrent Circuit Breaker at 2?/SPAN> IMAX
D   Precharge Output
D   Logic Low Power Good Output
D   Logic Low Enable Input
D   On-Chip Charge Pump
D   Low Sleep Mode Current
D   Undervoltage Lockout (UVLO)
D   Minimal External Parts Count
D   24-pin TSSOP Package
DESCRIPTION
The TPS2346 Optical Network Hot Swap Power
Manager (HSPM) provides highly-integrated supply
control of three positive (3.3-V, 5-V, and 5.15-V) and one
negative (5.2-V) supply rails with a minimum number
of external components. A linear current amplifier (LCA)
in   each   of   the   four   device   channels   provides
closed-loop control of load current during insertion and
extraction events. This allows the designer to configure
the plug-in cards maximum inrush slew rate and
magnitude according to the requirements of the system
supplies.
APPLICATIONS
D   Hot Swap of ONET Modules
D   Supply Power-Up/Power-Down Sequencing
5.15V
5V
GND
3.3 V
5.2 V
5.15 V
5 V
3.3 V
5.2 V
BRIDGE DEVICE
AD[00]
AD[XX:01]
CS1
VIN1
ENABLE
PG
RGND
VIN4
CS4
GATE1  VS1    VIN2
PRECHG
CS2
GATE2
VS2
CPUMP
CPGND
VS3
GATE3
VIN3
IRAMP
CS3
VS4
GATE4
TPS2346
AGND
AD[00]
AD[XX:01]
ADDRESS/DATA BUS
PLUGIN MODULE
Q1
Q2
Q3
Q4
EXAMPLE SIGNAL LINE
D2 6.8 V
D1
6.8 V
R
P
ENABLE
PG
C2
0.39 礔
C1
0.1 礔
R2
2 m&
C3
0.1 礔
R3
2 m&
R4
0.2 &
R5
10 k&
R1
3 m&
R8
10 &
UDG02080
TYPICAL APPLICATION
R6
10 k&
R7
1.2 k&
Copyright ?2002, Texas Instruments Incorporated
PRODUCTION   DATA   information   is   current   as   of   publication   date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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