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參數(shù)資料
| 型號： | L6727 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.5 A SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | LEAD FREE, SOP-8 |
| 文件頁數(shù)： | 30/34頁 |
| 文件大?。?/td> | 974K |
| 代理商： | L6727 |
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L6727
Pins description and connection diagrams
Doc ID 12933 Rev 4
5/34
2
Pins description and connection diagrams
Figure 3.
Pins connection (top view)
2.1
Pin descriptions
Table 2.
Pins descriptions
1
2
3
4
VCC
FB
COMP / DIS / OC
PHASE
LGATE
GND
UGATE
BOOT
5
6
7
8
L6727
Pin #
Name
Function
1BOOT
HS driver supply.
Connect through a capacitor (100 nF) to the floating node (LS-drain) pin
and provide necessary bootstrap diode from VCC.
2
UGATE
HS driver output. Connect to HS MOSFET gate.
3GND
All internal references, logic and drivers are connected to this pin.
Connect to the PCB ground plane.
4
LGATE
LS driver output. Connect to LS MOSFET gate.
5VCC
Device and LS driver power supply.
Operative range from 4.1 V to 13.2 V. Filter with at least 1
μF MLCC to GND.
6FB
Error Amplifier Inverting Input.
Connect with a resistor RFB to the output regulated voltage. Additional
resistor ROS to GND may be used to regulate voltages higher than the
reference.
7
COMP / DIS
/ OC
COMP. Error amplifier output. Connect with an RF - CF // CP to FB to
compensate the control-loop.
DIS. The device can be disabled by forcing this pin lower than 0.5V(typ). To
disable the device, the external pull-down need to overcome 10mA of
COMP output current for about 15
μs. Once disabled, COMP output current
drops to 20
μA.
OC. Over current threshold set. Connect with an ROCSET resistor to VCC
(ONLY IF VCC is supplied by 5 V bus) to program OC threshold. When
VCC > 5V, ROCSET need to be not-connected.
8
PHASE
HS driver return path, current-reading and adaptive-dead-time monitor.
Connect to the LS drain to sense RdsON drop to measure the output current.
This pin is also used by the adaptive-dead-time control circuitry to monitor
when HS MOSFET is OFF.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6727_10 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Single phase PWM controller |
| L6727TR | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Single PWM controler 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 |
| L6728 | 功能描述:DC/DC 開關(guān)控制器 Sngl phase PWM 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 |
| L6728_0706 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Single phase PWM controller with Power Good |
| L6728A | 功能描述:電壓模式 PWM 控制器 Hi-Freq. singl-phase PWM controller w/Po 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 |
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