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參數資料
| 型號： | L6717 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | DUAL SWITCHING CONTROLLER, 575 kHz SWITCHING FREQ-MAX, QCC48 |
| 封裝： | 7 X 7 MM, 1 MM HEIGHT, ROHS COMPLIANT, VFQFPN-48 |
| 文件頁數： | 22/56頁 |
| 文件大?。?/td> | 1081K |
| 代理商： | L6717 |
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L6717
Power manager I2C
Doc ID 17326 Rev 1
29/56
6.1.1
Overspeeding command (OVRSPD)
This command allows to add a variable positive/negative offset to the CORE and/or NB
reference programmed by the SVI bus in order to overspeed the CPU. L6717 allows adding
up to 1.550 V in 50 mV steps to the reference.
The maximum possible output voltage for CORE section is internally limited to 2.8 V. In case
the SVI programmed reference plus the offset set through the OVRSPD command exceed
this value, the reference for the regulation is clamped to 2.8 V.
The maximum possible output voltage for NB section is internally limited by the maximum
offset achievable for NB section that is +600 mV over the SVI programmed reference.
Once the controller acknowledges the command and recognizes the OVRSPD command,
the reference will step up or down until reaching the target offset performing a on-the-fly VID
transition. In case a new overspeed command is issued while the output voltage is not yet
stabilized (i.e. the reference is still stepping to the target), the target is updated according to
the new offset defined.
The command addresses both sections through two separate bits in the command code
(“CN” bits - See Table 12). By asserting the corresponding bit, the subsequent data stream
will apply to the identified section. Asserting both bits (“CN” = 11b) will address both
sections. CN = 00b will be ignored regardless of the data Stream provided. “CN” = 10b and
“CN” = 01b allow to address only CORE or only NB section respectively.
010
[1:4] xxxx
[5:6] kDRPNB
[7:8] kDRP
DRP_ADJ: Droop function adjustment. Modifies the slope of the
output voltage implemented through the droop function.
[1:4]: ignored
[5:6]: kDRPNB. Defines the kDRP factor for NB section.
[7:8]: kDRP. Defines the kDRPNB factor for CORE section.
Default value is kDRPx = 1/4 for both sections.
See Table 16 for details about DRP_ADJ codification and Section 7.3
and Section 7.6 for LoadLine definition.
011
[1:3] xxx
[4:5] DPMTH
[6] PSI_A
[7] PSI_EN
[8] DPM_ON
Power management flags: Set of three flags to define power
management actions of the controller.
[1:3]: ignored
[4:5]: DPM thresholds. Default is 00b.
[6] PSI_A: PSI action. It defines the action to take when PSI_L flag is
asserted by SVI bus. The same action is considered by DPM. Send
0b to work in single phase (default) or 1b to work at two phases.
[7] PSI_EN: PSI enable. It enables or disables the PSI management.
Set to 1b (default) to manage PSI_L according to PSI_A or set to 0b
to ignore PSI_L flag sent through SVI bus.
[8] DPM_ON: Dynamic phase management. It enables or disables
the DPM mode. Set to 1b to enable DPM or set to 0b (default) to
disable it.
When enabled DPM acts automatically cutting phases according to
PSI action flag at light load.
See Section 6.2 for details about DPM.
Table 12.
Power manager I2C command phase and data stream
Command
code [4:6]
Data stream
[1:8]
Description
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相關代理商/技術參數 |
參數描述 |
|---|---|
| L6717A | 制造商:STMicroelectronics 功能描述:CPU Power Supply Controller Tray 制造商:STMicroelectronics 功能描述:HANDHELD & COMPUTER PM - Trays 制造商:STMicroelectronics 功能描述:High EFF Hybrid CTRL I2C Embedded Driver |
| L6717ATR | 制造商:STMicroelectronics 功能描述:CPU Power Supply Controller T/R 制造商:STMicroelectronics 功能描述:HANDHELD & COMPUTER PM - Tape and Reel 制造商:STMicroelectronics 功能描述:High EFF Hybrid CTRL I2C Embedded Driver |
| L6717TR | 功能描述:開關變換器、穩(wěn)壓器與控制器 High-Efficienc AM2r2 Hybrid Controller 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 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| L6718TR | 功能描述:其他電源管理 Multiphase Dual PWM VR12 25MHz LTB RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel |
| L6720 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
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