參數(shù)資料
型號(hào)： L6710
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： 2 A SWITCHING CONTROLLER, PQFP44
封裝： 10 X 10 MM, 1 MM HEIGHT, TQFP-44
文件頁數(shù)： 33/34頁
文件大?。?/td> 1610K
代理商： L6710
L6710
8/34
REFERENCE SCHEMATIC
DEVICE DESCRIPTION
The device is an integrated circuit realized in BCD technology. It provides complete control logic and pro-
tections for a high performance dual-phase step-down DC-DC converter optimized for microprocessor
power supply. It is designed to drive N Channel MOSFETs in a two-phase synchronous-rectified buck to-
pology. A 180 deg phase shift is provided between the two phases allowing reduction in the input capacitor
current ripple, reducing also the size and the losses.
The output voltage of the converter can be precisely regulated, programming the VID pins, from 0.8375 to
1.6000V with 12.5mV binary steps, with a maximum tolerance on the output regulated voltage of ±0.5%
over temperature and line voltage variations. Since the VID pins program the maximum output voltage,
the device automatically regulates to a voltage VID*=VID-25mV avoiding use of any external component
to lower the regulated voltage. Dynamic VID Code changes are managed stepping to the new configura-
tion following the VID table with no need for external components. The device provides an average cur-
rent-mode control with fast transient response. It includes a 150kHz oscillator externally adjustable
through a resistor. The error amplifier features a 15V/
s slew rate that permits high converter bandwidth
for fast transient performances.
Current information is read across the lower mosfets RdsON or across a sense resistor placed in series to
the LS mos in fully differential mode. The current information corrects the PWM output in order to equalize
the average current carried by each phase. Current sharing between the two phases is then limited at
±10% over static and dynamic conditions unless considering the sensing element spread.
The device protects against Over-Current, with an OC threshold for each phase, entering in constant cur-
rent mode. Since the current is read across the low side mosfets, the device keeps constant the bottom
of the inductors current triangular waveform. When an under voltage is detected the device latches and
the FAULT pin is driven high. The device performs also Over-Voltage protection that disables immediately
the device turning ON the lower driver and driving high the FAULT pin.
L6710
PGOOD
PGND
PGNDS
ISEN2
LGATE2
VSEN
FB
PHASE2
HGATE2
BOOT2
VCC
COMP
SGND
REF_OUT
VID0
VID1
VID2
VID3
VID4
To PGNDS
ISEN1
LGATE1
PHASE1
HGATE1
BOOT1
VCCDR
5
31
35
36
38
21
20
41
3
43
42
40
19
28
27
26
24
25
6, 7
39
30
13
9
8
14
18
OUTEN
FBG
12
RFB
RF
CF
Rg
LS2
HS2
L2
CIN
COUT
S1
S0
S3
S2
S4
Rg
LS1
L1
HS1
Vin
GNDin
PGOOD
CPU
Rg
VID5
29
S5
OSC / FAULT
22
17
FBR
VID_Pgood
To VCC
相關(guān)PDF資料
PDF描述
L6710TR 2 A SWITCHING CONTROLLER, PQFP44
L6713ATR 2 A SWITCHING CONTROLLER, 225 kHz SWITCHING FREQ-MAX, PQFP64
L6716TR DUAL SWITCHING CONTROLLER, 225 kHz SWITCHING FREQ-MAX, QCC48
L6716 DUAL SWITCHING CONTROLLER, 225 kHz SWITCHING FREQ-MAX, QCC48
L6722 SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, QCC36
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6710TR 功能描述:功率驅(qū)動(dòng)器IC 6-Bit Dual Ph Contlr RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
L6711 功能描述:DC/DC 開關(guān)控制器 3 PHASE CONTROLLER RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
L6711_06 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3 Phase controller with dynamic VID and selectable DACs
L6711TR 功能描述:DC/DC 開關(guān)控制器 3 PHASE CONTROLLER RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
L6712 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TWO-PHASE INTERLEAVED DC/DC CONTROLLER
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