- 您現在的位置：買賣IC網 > PDF目錄98280 > TPS2459RHB (TEXAS INSTRUMENTS INC) 2-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32 PDF資料下載
參數資料
| 型號： | 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 |
| 文件頁數： | 22/48頁 |
| 文件大小： | 852K |
| 代理商： | TPS2459RHB |
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頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁當前第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁
CHARGE
C
V
1600 F
12 V
I
6.4 A
t
0.003 s
m
=
LOAD
P
80 W
I
6.67 A
V
12 V
=
(
)
LIMIT
SENSE
SUM
SET
I
R
691
0.675
=
W
SET
LIMIT
SENSE
SUM
0.675
R
I
13.83 A
R
=
LIMIT
INRUSH
I
0.6
I
0.6
13.83 A
8.3 A
=
=
=
(
)
LIMIT
SENSE
SUM
SET
I
R
857
0.675
=
W
SET
LIMIT
SENSE
SUM
0.675
R
I
16.75 A
R
=
LIMIT
INRUSH
I
0.5
I
0.5
16.75 A
8.38 A
=
=
=
www.ti.com
SLUS917D – FEBRUARY 2009 – REVISED MAY 2010
(7)
where
RSUM = 6810
RSENSE = 5
(8)
The closest 1% value is 698
(9)
If R3[3:0] are set to 0111 and R6[4] = 1 the current limit drops to 60% of the programmed maximum after
dropping out of current limit following inrush. The operational current limit is calcualted in Equation 10.
(10)
The new 8.38-A current limit is within the specification of 8.25 A ±10 %. Note. These calculations use all nominal
values and neglect di/dt rates at turn on.
Example Two
Set up 12-A to startup into an 80-W load and charge a 1600 mF at not more than 17-A nominal. Then drop to an
operational ILIMIT of 8.25 A ±10%.
ISTARTUP = 17 A
The correct RSET must be found to set maximum ILIMIT to less than 17 A.
where
RSUM = 6810
RSENSE = 5
(11)
The closest 1% value is 845
.
(12)
Neglecting the current slew time, charge the 1600-mF capacitor in 1.9 ms.
If R3[3:0] are set to 0101 and R6[4] = 1 the current limit drops to 50% of the programmed maximum after
dropping out of current limit following inrush. The operational current limit is calculated in Equation 13.
(13)
The new 8.38-A current limit is within the specification of 8.25 A ±10 %.
Note. These calculations use all nominal values.
Copyright 2009–2010, Texas Instruments Incorporated
29
Product Folder Link(s): TPS2459
相關PDF資料 |
PDF描述 |
|---|---|
| TPS24701DGK | POWER SUPPLY SUPPORT CKT, PDSO8 |
| TPS24710DGS | POWER SUPPLY SUPPORT CKT, PDSO10 |
| TPS24710 | POWER SUPPLY SUPPORT CKT, PDSO10 |
| TPS24711 | POWER SUPPLY SUPPORT CKT, PDSO10 |
| TPS24711DGSR | POWER SUPPLY SUPPORT CKT, PDSO10 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS2459RHBR | 功能描述:熱插拔功率分布 3V/12V Hot Swap & ORing Controller RoHS:否 制造商:Texas Instruments 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2459RHBT | 功能描述:熱插拔功率分布 3V/12V Hot Swap & ORing Controller RoHS:否 制造商:Texas Instruments 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2459RHBT | 制造商:Texas Instruments 功能描述:Hot Swap Controllers TI 制造商:Texas Instruments 功能描述:IC, HOT SWAP & O-RING CTRL, 23V, QFN-32 |
| TPS24700DGK | 功能描述:熱插拔功率分布 2.5-18V Hi Eff Hot- Swap Controller RoHS:否 制造商:Texas Instruments 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS24700DGKR | 功能描述:熱插拔功率分布 2.5-18V Hi Eff Hot- Swap Controller RoHS:否 制造商:Texas Instruments 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
發布緊急采購，3分鐘左右您將得到回復。