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| 型号： | TPS2346PWG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO24 |
| 封装： | GREEN, TSSOP-24 |
| 文件页数： | 1/30页 |
| 文件大小： | 490K |
| 代理商： | TPS2346PWG4 |
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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× 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 card’s 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
BACK–END
POWER
PLANES
BACKPLANE
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
PLUG–IN MODULE
Q1
Q2
Q3
Q4
EXAMPLE SIGNAL LINE
D2 6.8 V
D1
6.8 V
RP
ENABLE
PG
C2
0.39
F
C1
0.1
F
R2
2 m
C3
0.1
F
R3
2 m
R4
0.2
R5
10 k
R1
3 m
R8
10
UDG–02080
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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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS2346PWR | 功能描述:热插拔功率分布 Optical Network Hot Swap Controller RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| TPS2346PWRG4 | 功能描述:热插拔功率分布 Optical Network Hot Swap Controller RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| TPS2350D | 功能描述:热插拔功率分布 Pwr Mngr for Redund -48V Supplies RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| TPS2350DG4 | 功能描述:热插拔功率分布 Pwr Mngr for Redund -48V Supplies RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| TPS2350DR | 功能描述:热插拔功率分布 Pwr Mngr for Redund -48V Supplies RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
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