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| 型号： | L6714TR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 170 kHz SWITCHING FREQ-MAX, PQFP64 |
| 封装： | 10 X 10 MM, LEAD FREE, TQFP-64 |
| 文件页数： | 26/70页 |
| 文件大小： | 694K |
| 代理商： | L6714TR |
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Current reading and current sharing loop
L6714
32/70
10
Current reading and current sharing loop
L6714 embeds a flexible, fully-differential current sense circuitry that is able to read across
both low side or inductor parasitic resistance or across a sense resistor placed in series to
that element. The fully-differential current reading rejects noise and allows placing sensing
element in different locations without affecting the measurement's accuracy. The kind of
sense element can be simply chosen through the DAC/CS_SEL pin according to See
the current delivered by each phase and the average current
. The error
between the read current IINFOx and the reference IAVG is then converted into a voltage that
with a proper gain is used to adjust the duty cycle whose dominant value is set by the
voltage error amplifier in order to equalize the current carried by each phase. Details about
connections are shown in Figure 9.
Figure 8.
Current sharing loop.
I
AVG
ΣI
INFOx
N
( )
=
I
INFO1
PWM1 Out
From EA
I
INFO2
I
AVG
PWM2 Out
I
INFO3
PWM3 Out
AVG
PWM4 Out
I
INFO4
相关PDF资料 |
PDF描述 |
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| 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 |
| L6728A | SWITCHING CONTROLLER, 660 kHz SWITCHING FREQ-MAX, PDSO10 |
| L6728D | 30 A SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDSO10 |
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| 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 |
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