參數(shù)資料
型號(hào)： TPS2301PWR
英文描述： Analog IC
中文描述： 模擬IC
文件頁(yè)數(shù)： 15/20頁(yè)
文件大?。?/td> 411K
代理商： TPS2301PWR
TPS2330, TPS2331
SINGLE HOT SWAP POWER CONTROLLER WITH
CIRCUIT BREAKER AND POWER-GOOD REPORTING
SLVS277A – MARCH 2000– REVISED APRIL 2000
15
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
gate drive circuitry
The TPS2330/TPS2331 includes four separate features associated with each gate-drive terminal:
A charging current of approximately 15
μ
A is applied to enable the external MOSFET transistor. This current
is generated by an internal charge pump that can develop a gate-to-source potential (referenced to DISCH)
of 9 V–12 V. DISCH must be connected to the external MOSFET source terminal to ensure proper operation
of this circuitry.
A discharge current of approximately 75
μ
A is applied to disable the external MOSFET transistor. Once the
transistor gate voltage has dropped below approximately 1.5 V, this current is disabled and the UVLO
discharge driver is enabled instead. This feature allows the part to enter a low-current shutdown mode while
ensuring that the gate of the external MOSFET transistor remain at a low voltage.
During a UVLO condition, the gate of the MOSFET transistor is pulled down by an internal PMOS transistor.
This transistor continues to operate even if the voltage at IN is 0 V. This circuitry also helps hold the external
MOSFET transistor off when power is suddenly applied to the system.
During an overcurrent fault condition, the external MOSFET transistor that exhibited an over-current
condition will be rapidly turned off by an internal pulldown circuit capable of pulling in excess of 400 mA (at
4 V) from the pin. Once the gate has been pulled below approximately 1.5 V, this driver is disengaged and
the UVLO driver is enabled instead.
setting the current-limit circuit-breaker threshold
The current sensing resistor R
ISENSE
and the current limit setting resistor R
ISET
determine the current limit of
the channel, and can be calculated by the following equation:
I
LMT
R
ISET
50
10
–6
R
ISENSE
Typically R
ISENSE
is usually very small (0.001
to 0.1
). If the trace and solder-junction resistances between
the unction of R
ISENSE
and ISENSE and the unction of R
ISENSE
and R
ISET
are greater than 10% of the R
ISENSE
value, then these resistance values should be added to the R
ISENSE
value used in the calculation above.
Table 2 shows some of the current sense resistors available in the market.
Table 2. Some Current Sense Resistors
CURRENT RANGE
(A)
PART NUMBER
DESCRIPTION
MANUFACTURER
0 to 1
WSL-1206, 0.05 1%
0.05
, 0.25 W, 1% resistor
0.025
, 0.25 W, 1% resistor
0.015
, 0.25 W, 1% resistor
0.010
, 0.5 W, 1% resistor
0.007
, 0.5 W, 1% resistor
0.005
, 0.5 W, 1% resistor
1 to 2
WSL-1206, 0.025 1%
2 to 4
WSL-1206, 0.015 1%
Vishay Dale
4 to 6
WSL-2010, 0.010 1%
6 to 8
8 to 10
WSL-2010, 0.007 1%
WSR-2, 0.005 1%
Powered by ICminer.com Electronic-Library Service CopyRight 2003
相關(guān)PDF資料
PDF描述
TPS2311PWR Analog IC
TPS2340A Dual Slot PCI and PCIX 1.0 Hot-Plug Power Controller
TPS2340APFP SMPS Controller
TPS2341 Dual-Slot PCI Hot-Plug Power Controller with I2C Interface
TPS2345 CompactPCI Hot Swap Power Manager Industrial Temp IC that meets the PICMG Standard
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS2306DW 功能描述:DUAL SEQ HOT SWAP PWR M 16-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:100 系列:- 類型:熱插拔開關(guān) 應(yīng)用:通用 內(nèi)部開關(guān):是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-TDFN-EP（3x3） 包裝:管件
TPS2306DWG4 制造商:Texas Instruments 功能描述:
TPS2306EVM-001 功能描述:EVALUATION MODULE FOR TPS2306 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 主要目的:電源管理，電池充電器 嵌入式:否 已用 IC / 零件:MAX8903A 主要屬性:1 芯鋰離子電池 次要屬性:狀態(tài) LED 已供物品:板
TPS230QP 制造商:Texas Instruments 功能描述:
TPS2310IPW 功能描述:熱插拔功率分布 3-13V Dual w/Intrdpt Chl Circuit Breaking RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*