- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69003 > L6722TR (STMICROELECTRONICS) SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, QCC36 PDF資料下載
參數(shù)資料
| 型號(hào)： | L6722TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, QCC36 |
| 封裝： | 6 X 6 MM, 1 MM PITCH, VFQFPN-36 |
| 文件頁數(shù)： | 5/34頁 |
| 文件大?。?/td> | 421K |
| 代理商： | L6722TR |
第1頁第2頁第3頁第4頁當(dāng)前第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁
Obsolete
Product(s)
- Obsolete
Product(s)
L6722
4 Device description
13/34
4
Device description
L6722 is multi-phase PWM controller with embedded high current drivers that provides
complete control logic and protections for a high performance step-down DC-DC voltage
regulator. Multi-phase buck is the simplest and most cost-effective topology employable to
satisfy the increasing current demand of the modern high current DC/DC converters and POLs
requirements. It allows distributing equally load and power between the phases using smaller,
cheaper and most common external power mosfets and inductors. Moreover, thanks to the
equal phase-shift between each phase, the input and output capacitor count results in being
reduced. Phase interleaving causes in fact input rms current and output ripple voltage reduction
and show an effective output switching frequency increase: the 100kHz free-running frequency
per phase, externally adjustable through a resistor, results multiplied on the output by the
number of phases.
The device comes with a fixed 0.8V reference that guarantee the output regulated voltage to be
within
±1%; the output voltage is then adjustable through a resistor divider between FBR and
FBG. OFFSET may be added to the main reference so allowing the device to be tested for
margining during the system production. In addition, droop function may be enabled to perform
precise voltage positioning according to the delivered current.
SS is performed by increasing the reference in 2048 clock cycles in closed loop regulation.
L6722 provides a complete set of protections to avoid damaging the load in any operative and
non-operative conditions:
●
Over-Voltage protection protects the load from dangerous over stress latching immediately
the lower driver ON and driving high the FAULT pin.
●
Preliminary OVP protection also allows the device to protect the load from dangerous OVP
when VCC is not above the UVLO threshold.
●
UVP protection latches the device and drives high the FAULT pin.
●
Over-Current protection is provided with an OC threshold for each phase; when set, it
causes the device to enter in constant current mode until the latched UVP.
●
Low-Side-Less start-up allows the device to perform soft-start over pre-biased output
avoiding dangerous current return through the main inductors as well as negative spike at
the load side and allowing the device to work in redundant systems.
A compact VFQFPN36 package with exposed thermal pad allows dissipating the power to drive
the external mosfet through the system board.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L9407F | SPECIALTY ANALOG CIRCUIT, PSFM8 |
| L9942 | STEPPER MOTOR CONTROLLER, PDSO36 |
| LA5681FN | SWITCHING CONTROLLER, 520 kHz SWITCHING FREQ-MAX, QCC48 |
| LB11620T | BRUSHLESS DC MOTOR CONTROLLER, 0.25 A, PDSO24 |
| LB11875 | BRUSHLESS DC MOTOR CONTROLLER, 0.03 A, PDSO36 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6725 | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Vltg Mode PWM 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(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| L6725_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Voltage mode PWM controller with bootstrap anti-discharging system |
| L6725A | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Vltg Mode PWM 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(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| L6725ATR | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Step-Down 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(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| L6725TR | 功能描述:電壓模式 PWM 控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。