- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98279 > TPS2306DWG4 (TEXAS INSTRUMENTS INC) 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 PDF資料下載
參數(shù)資料
| 型號(hào)： | TPS2306DWG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封裝： | SOIC-16 |
| 文件頁數(shù)： | 14/29頁 |
| 文件大?。?/td> | 427K |
| 代理商： | TPS2306DWG4 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁當(dāng)前第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁
TPS2306
DUAL SEQUENCING HOT SWAP POWER MANAGER
SLVS368 APRIL 2001
21
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
R1B
+
0.65 V
(2.5 V
* 0.65 V)
10k
W ^ 3.51 kW
estimating the output ramp-up time
As described in the Fault Timer section, TPS2306 operation in linear mode is limited to the timeout period
established by the external capacitor on the CT pin. This timeout must be long enough to allow for either the
concurrent or sequential charging of BOTH outputs to the input supply levels. Therefore, an estimate of this
ramp-up time is required to ensure start-up.
The output voltage ramp profiles are influenced by a number of factors, including the amount of load
capacitance, the load current level, the load characteristic (either resistive or constant-current), and the current
ramp profile. Therefore, determination of the charging, or start-up, time is organized into several different load
categories:
1.
resistive loads, no soft-start
2.
constant-current loads, no soft-start
3.
constant-current loads, with soft-start
The case which most closely describes the application characteristics should be selected.
NOTE:In the following discussion, the subscripted “1” and “2” suffixes refer respectively to the first
channel to ramp up (primary or master), and the second (or controlled or slave) channel to ramp,
not necessarily device Channels 1 and 2.
case 1: resistive loads, no soft-start
When the output ramp conditions are met, the pass FET gates are initially only driven to source a current of
approximately 5% of the IMAX current to the loads, as described in the Output Ramp Operation section. This
first step lasts a nominal 500
s. Subsequently, the output current is ramped to the full IMAX setting. For typical
applications, the extent of capacitance charging during this slow ramp period is relatively small. Therefore, it
can be neglected in estimating total start-up time, simplifying calculations. However, since the HSPM timer is
started as soon as the first output starts ramping, the slow ramp period is included as a component of the total
ramp-up time.
Given these considerations, the start-time calculation approximates the source as making a step change from
0 to IMAX, once enabled. Therefore, the time for either output to charge to a given voltage, vx(t), can be found
from:
t
+ R
Lx
C
Lx
n
(IMAXx)
R
Lx
IMAXx
R
Lx * nx
(t)
) t
SR
where:
R
Lx = the load resistance
C
Lx = the load input capacitance (CLOAD1 or CLOAD2 in Figure 2)
t
SR = the initial slow turn-on period, approximately 500 s
(15)
(16)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPS2340APFPRG4 | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PQFP80 |
| TPS2341PHPR | 4-CHANNEL POWER SUPPLY SUPPORT CKT, PQFP48 |
| TPS2343DDPG3 | 6-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO80 |
| TPS2343DDPR | 6-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO80 |
| TPS2345PWNRND | 4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO24 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)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 |
| TPS2310IPWG4 | 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 |
| TPS2310IPWR | 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，3分鐘左右您將得到回復(fù)。