- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377972 > ML6554CU (FAIRCHILD SEMICONDUCTOR CORP) 3A Bus Termination Regulator PDF資料下載
參數(shù)資料
| 型號： | ML6554CU |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | 3A Bus Termination Regulator |
| 中文描述： | BUS TERMINATOR SUPPORT CIRCUIT, PDSO16 |
| 封裝： | PLASTIC, SOP-16 |
| 文件頁數(shù)： | 5/14頁 |
| 文件大?。?/td> | 386K |
| 代理商： | ML6554CU |
PRODUCT SPECIFICATION
ML6554
REV. 1.1.3 3/8/02
5
Applications
Using the ML6554 for SSTL Bus Termination
The circuit schematic in Figure 2 shows a recommended
approach for constructing a bus terminating solution for an
SSTL-2 bus. This circuit can be used in PC memory and
Graphics memory applications as shown in Figures 4 and 5.
Note that the ML6554 can provide the voltage reference
(V
REF
) and terminating voltages (V
TT
). Using the layout
as shown in Figures 6, 7, and 8, and measuring the V
TT
performance using the test setup as described in Figure 9,
the ML6554 delivered a V
TT
± 20mV for 1A to 3A loads
(see Figure 10). Table 1 provides a recommended parts list
for the circuit in Figure 2.
Power Handling Capability of the PSOP
Package
Using the board layout shown in Figures 6, 7, and 8; solder-
ing the ML6554 to the board at zero LFPM the temperature
around the package measured 55oC for 3A loads. Note that a
1 ounce copper plane was used in the board construction.
Airflow is not likely to be needed in the operation of this
device (assuming a board layout similar to that described
above). The power handling performance of the PSOP
package is shown by a study of the package manufacturer for
various airflow vs.
θ
JA
conditions in Figure 11.
Bus Termination Solutions for Others Buses
Table 3 provides a summary of various bus termination V
REF
& V
TT
requirements. The ML6554 can be used for those
applications.
Figure 2.
16
15
14
13
12
11
10
9
U1
ML6554
VDD
PVDD1
VL1
PGND1
PGND2
VL2
PVDD2
DGND
AVCC
VCCQ
VREFOUT
AGND
SHDN
VREFIN
VFB
VDD
1
2
3
4
5
6
7
8
R3
100k
VCCQ
VREFOUT
TPI
VTT
2.5V TO 4V
SHDN
VREFIN
GND
GND
TO SDRAMS
C6
330
μ
F
C7 1nF
C5
330
μ
F
C4 0.1
μ
F
R4 100k
R5 1k
C9 0.1
μ
F
R2 100
R1 100
C8 0.1
μ
F
C2
0.1
μ
F
C1
820
μ
F
F2V
OS-CON
L1 3.3
μ
H C3 0.1
μ
F
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ML6554IU | 3A Bus Termination Regulator |
| ML6554 | 3A Bus Termination Regulator |
| ML6599 | Hot-Insertable Active SCSI Terminator(熱插入有源SCSI終端器) |
| ML65F16244 | 16-Bit Buffer/Line Driver with 3-State Outputs(16位緩沖器/線驅(qū)動器（三態(tài)輸出）) |
| ML65F16245 | 16-Bit Bidirectional Transceiver with 3-State Outputs(16位雙向收發(fā)器（三態(tài)輸出）) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ML6554CUX | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 3A Bus Termination RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| ML6554IU | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 3A Bus Termination RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| ML6554IU_Q | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 3A Bus Termination RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| ML6554IUX | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 3A Bus Termination RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| ML6599 | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:Hot-Insertable Active SCSI Terminator |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。