- 您现在的位置：买卖IC网 > PDF目录67754 > L6717 (STMICROELECTRONICS) DUAL SWITCHING CONTROLLER, 575 kHz SWITCHING FREQ-MAX, QCC48 PDF资料下载
参数资料
| 型号： | L6717 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | DUAL SWITCHING CONTROLLER, 575 kHz SWITCHING FREQ-MAX, QCC48 |
| 封装： | 7 X 7 MM, 1 MM HEIGHT, ROHS COMPLIANT, VFQFPN-48 |
| 文件页数： | 26/56页 |
| 文件大小： | 1081K |
| 代理商： | L6717 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页当前第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页
Power manager I2C
L6717
32/56
Doc ID 17326 Rev 1
6.2
Dynamic phase management (DPM)
Dynamic phase management allows to adjust the number of working phases according to
the delivered current still maintaining the benefits of the multiphase regulation.
Phase number is reduced by monitoring the voltage level across ILIM pin: L6717 reduces
the number of working phase according to the strategy defined by the PSI_A flag when the
voltage across ILIM pin is lower than VDPM. When the load current increases the phase
number is restored to the original value as soon as the voltage across ILIM pin exceeds
VDPM.
The current at which the transition happens (IDPM) can be estimated as:
VDPM thresholds are defined as a percentage of the voltage on ILIM pin corresponding to
the Thermal Design Current of the application.
1.8V on ILIM pin corresponds to 100% of the load and DPM threshold are defined as a
percentage of 1.8V (see Table 18 for details).
An hysteresis is provided for each threshold in order to avoid multiple DPM actions
triggering in steady load conditions.
DPM is disabled by default: Soft-start is performed with all the available phases.
Table 17.
Power management flags
Data stream bit
Flag
Description
[1:3]
n/a
Ignored.
[4:5]
DPMTH
DPM threshold. Allow to define 4 different values for VDPM.
See Section 6.2 for code/thresholds correspondence.
[6]
PSI_A
0b (default): IC working in single phase when PSI_L asserted.
1b:IC working in two phase when PSI_L asserted.
[7]
PSI_EN
0b: PSI_L flag in SVI ignored.
1b (default): PSI_L flag in SVI monitored and phase dropping
enabled according to PSI_A.
[8]
DPM_ON
0b (default): DPM disabled.
1b: DPM enabled.
Table 18.
VDPM thresholds
CODE
VDPM (ILIM rising)
VDPM (ILIM falling)
00 (default)
20%
15%
01
25%
20%
10
30%
25%
11
35%
30%
I
DPM
V
DPM
R
ILIM
---------------
R
G
DCR
-------------
=
相关PDF资料 |
PDF描述 |
|---|---|
| L6728HTR | SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO10 |
| L6728H | SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO10 |
| L6728 | 1.5 A SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, DSO10 |
| L6728TR | 1.5 A SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, DSO10 |
| L6731BTR | 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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:开关变换器、稳压器与控制器 High-Efficienc AM2r2 Hybrid Controller RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| L6718TR | 功能描述:其他电源管理 Multiphase Dual PWM VR12 25MHz LTB RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
| L6720 | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
发布紧急采购，3分钟左右您将得到回复。