- 您現(xiàn)在的位置：買賣IC網 > PDF目錄373328 > RT9641B Triple Linear Regulator Controller Support ACPI Control Interface PDF資料下載
參數(shù)資料
| 型號： | RT9641B |
| 英文描述： | Triple Linear Regulator Controller Support ACPI Control Interface |
| 中文描述： | 三線性穩(wěn)壓控制器支持ACPI控制接口 |
| 文件頁數(shù)： | 7/11頁 |
| 文件大?。?/td> | 326K |
| 代理商： | RT9641B |
7
RT9641A/B
VSEN2 (Pin 16)
Connect this pin to the memory output (V
OUT2
). In sleep states, this pin is regulated to 2.5V(2.6V) or 3.3V(3.43V) (based
on R
SEL
) through an internal pass transistor capable of delivering 300mA (Typically). The active-state voltage at this pin is
regulated through an external NPN or NMOS transistor connected at the DRV2 pin for both 2.5V(2.6V) and 3.3V(3.43V)
setting. During all operating states, the voltage at this pin is monitored for under-voltage events.
Applications Information
EN3VDL S5 S3 3V3DL
Comments
0
1
1
3.3V S0, S1 States (Active)
0
1
0
3.3V S3
0
0
1
Note Maintains Previous State
0
0
0
3.3V S4/S5
1
1
1
3.3V S0, S1 States (Active)
1
1
0
3.3V S3
1
0
1
Note Maintains Previous State
1
0
0
0V
S4/S5
Note: Combination not allowed.
As seen in Table 1,
EN3VDL
simply controls whether
the 3.3V
DUAL
plane remains powered up during S4/S5 sleep
state.
Table 1. 3.3V
DUAL
Output (V
OUT1
) Truth Table
Table 2. 5VDUAL Output (V
OUT3
) Truth Table
EN5VDL S5 S3 5VDL
Very similarly, Table 2 details the fact that EN5VDL status
controls whether the 5VDUAL plane supports sleeps
states.
Comments
0
1
1
5V
S0, S1 States(Active)
0
1
0
0V
S3
0
0
1
Note Maintains Previous State
0
0
0
0V
S4/S5
1
1
1
5V
S0, S1 States(Active)
1
1
0
5V
S3
1
0
1
Note Maintains Previous State
1
0
0
5V
S4/S5
Note: Combination not allowed.
Operation
The RT9641A/B controls 3 output voltages. It is designed
for microprocessor computer applications with 3.3V, 5V,
5VSB, and 12V outputs from an ATX power supply. The IC
is composed of two linear controllers supplying the PCI
slots
'
3.3V
AUX
power (3.3V
DUAL
, V
OUT1
) and the 2.5V
RDRAM or 3.3V SDRAM memory power (2.5V/3.3V(2.6V/
3.43V) V
MEM
, V
OUT2
), and a dual switch controller supplying
the 5V
DUAL
voltage (V
OUT3
). In addition, all the control and
monitoring functions necessary for complete ACPI
implementation are integrated into the RT9641A/B.
Initialization
The RT9641A/B automatically initializes upon receipt of
input power. The Power-On Reset (POR) function
continually monitors the 5VSB input supply voltage,
initiating soft-start operation after it exceeds its POR
threshold (in S4/S5 states). The 5VSB POR trip event is
also used to lock in the memory voltage setting based on
R
SEL
.
The RT9641A/B forces the operation mode to start from
S4/S5 states at POR releasing.
Operational Truth Tables
The EN3VDL and EN5VDL pins offer a host of choices in
terms of the overall system architecture and supported
features. Tables 1~3 describe the truth combinations
pertaining to each of the three outputs.
相關PDF資料 |
PDF描述 |
|---|---|
| RT9702 | Power Management/Switchers |
| RT9702A | Power Management/Switchers |
| RT9801A | Power Management/Voltage Dector |
| RT9801B | Power Management/Voltage Dector |
| RT9802A | Power Management/Voltage Dector |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| RT9641BCS2 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TRIPLE LINEAR REGULATOR CONTROLLER SUPPORT |
| RT9641BGS | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Triple Linear Regulator Controller Support ACPI Control Interface |
| RT9641BPS | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:Triple Linear Regulator Controller Support ACPI Control Interface |
| RT9643 | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:5 Channel ACPI Regulator with Step-Down DC/DC Controller |
| RT9643_11 | 制造商:RICHTEK 制造商全稱:Richtek Technology Corporation 功能描述:5 Channel ACPI Regulator with Step-Down DC/DC Controller |
發(fā)布緊急采購，3分鐘左右您將得到回復。