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参数资料
| 型号： | L6727TR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 1.5 A SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | LEAD FREE, SOP-8 |
| 文件页数： | 30/34页 |
| 文件大小： | 974K |
| 代理商： | L6727TR |
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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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相关代理商/技术参数 |
参数描述 |
|---|---|
| L6728 | 功能描述:DC/DC 开关控制器 Sngl phase PWM controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| L6728_0706 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Single phase PWM controller with Power Good |
| L6728A | 功能描述:电压模式 PWM 控制器 Hi-Freq. singl-phase PWM controller w/Po RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| L6728AH | 功能描述:软开关 PWM 控制器 Sgl Output 600 KHz DFPN-10 RoHS:否 制造商:Fairchild Semiconductor 输出端数量: 输出电流: 开关频率: 工作电源电压:30 V 电源电流: 最大工作温度:+ 105 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| L6728AHTR | 功能描述:电流型 PWM 控制器 HIGH FREQ PWM CNTRL W/PO RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
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