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参数资料
| 型号： | L6711TR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 2 A SWITCHING CONTROLLER, 178 kHz SWITCHING FREQ-MAX, PQFP48 |
| 封装： | 7 X 7 MM, 1 MM HEIGHT, TQFP-48 |
| 文件页数： | 18/50页 |
| 文件大小： | 679K |
| 代理商： | L6711TR |
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Obsolete
Product(s)
- Obsolete
Product(s)
L6711
Voltage positioning
25/50
Since IDROOP depends on the current information about the three phases, the output
characteristic vs. load current is given by:
Where RSENSE is the chosen sensing element resistance (Inductor DCR or LS RdsON), IOUT
is the output current of the system and RDROOP is its equivalent output resistance (The
whole power supply can be then represented by a "real" voltage generator with a voltage
value of VID and an equivalent series resistance RDROOP).
RFB resistor can be also designed according to the RDROOP specifications as follow:
Figure 10.
Voltage positioning with offset
10.2
Offset
The OFFSET pin allows programming a positive or a negative offset (VOS) for the output
voltage.
When the Integrated Thermal Sensor is disabled (TC = SGND) a resistor ROFFSET
connected vs. SGND increases the output voltage: since the pin is internally fixed at 1.240V,
the current programmed by the resistor ROFFSET is mirrored and then properly subtracted
considered):
The device will add the programmed offset VOS to the output programmed voltage
(considering now also the droop effect) subtracting the relative offset current from the
feedback current IFB:
VID
R
FB
I
DR OOP
–
VID
R
FB
R
SENSE
Rg
--------------------- IOUT
–
VID
R
DROOP
I
OUT
–
==
R
FB
R
DROOP
Rg
R
SEN SE
---------------------
=
1.240V
I OFFSET
1:1
ROFFSET
OFFSET
TC
IDROOP
VID
FB
COMP
I
FB
VSEN
64k
FBR
FBG
64k
RF
CF
RFB
To Vcore
(Remote Sense)
IOFFSET
V
OUT
VID
R
FB
I
OFFSET
+
VID
R
FB
1.240V
R
OFFSET
------------------------
+
VID
V
OS
+
==
=
VID
R
FB
I
FB
–
VID
R
FB
I
D ROOP
I
OFFSET
–
() = VID R
FB
I
OFFSET
R
D ROOP IOUT
–
+
–
=
相关PDF资料 |
PDF描述 |
|---|---|
| L6711 | 2 A SWITCHING CONTROLLER, 178 kHz SWITCHING FREQ-MAX, PQFP48 |
| L6714TR | SWITCHING CONTROLLER, 170 kHz SWITCHING FREQ-MAX, PQFP64 |
| L6714 | SWITCHING CONTROLLER, 170 kHz SWITCHING FREQ-MAX, PQFP64 |
| L6725TR | 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
| L6728ATR | SWITCHING CONTROLLER, 660 kHz SWITCHING FREQ-MAX, PDSO10 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| L6712 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:TWO-PHASE INTERLEAVED DC/DC CONTROLLER |
| L6712_05 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:TWO-PHASE INTERLEAVED DC/DC CONTROLLER |
| L6712A | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:TWO-PHASE INTERLEAVED DC/DC CONTROLLER |
| L6712AD | 功能描述:开关变换器、稳压器与控制器 2-Ph Interleaved 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 |
| L6712ADTR | 功能描述:开关变换器、稳压器与控制器 2-Ph Interleaved 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 |
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