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参数资料
| 型号： | L6706 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, QCC40 |
| 封装： | 6 X 6 MM, ROHS COMPLIANT, VFQFPN-40 |
| 文件页数： | 33/47页 |
| 文件大小： | 623K |
| 代理商： | L6706 |
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L6706
Driver section
Doc ID 15698 Rev 2
39/47
17
Driver section
The integrated high-current driver allow using different types of power MOS (also multiple
MOS to reduce the equivalent Rds(ON)), maintaining fast switching transition.
The driver for the high-side MOSFETs use BOOT pin for supply and PHASE pin for return.
The driver for the low-side MOSFETs use VCCDR pin for supply and PGND pin for return. A
minimum voltage at VCCDR pin is required to start operations of the device.
The controller embodies a sophisticated anti-shoot-through system to minimize low side
body diode conduction time maintaining good efficiency saving the use of Schottky diodes:
when the high-side MOSFET turns off, the voltage on its source begins to fall; when the
voltage reaches 2 V, the low-side MOSFET gate drive is suddenly applied. When the low-
side MOSFET turns off, the voltage at LGATE pin is sensed. When it drops below 1V, the
high-side MOSFET gate drive is suddenly applied.
If the current flowing in the inductor is negative, the source of high-side MOSFET will never
drop. To allow the turning on of the low-side MOSFET even in this case, a watchdog
controller is enabled: if the source of the high-side MOSFET doesn't drop, the low side
MOSFET is switched on so allowing the negative current of the inductor to recirculate. This
mechanism allows the system to regulate even if the current is negative.
The BOOT and VCCDR pin are separated from IC's power supply (VCC pin) as well as
signal ground (SGND pin) and power ground (PGND pin) in order to maximize the switching
noise immunity.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L6706TR | 功能描述:DC/DC 开关控制器 VR11.1 SINGLE PHASE CNTRL W/INT DRI 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 |
| L6709 | 功能描述:功率驱动器IC 6-Bit Dual Ph Contlr RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| L6709TR | 功能描述:功率驱动器IC 6-Bit Dual Ph Contlr RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| L6710 | 功能描述:功率驱动器IC 6-Bit Dual Ph Contlr RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| L6710TR | 功能描述:功率驱动器IC 6-Bit Dual Ph Contlr RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
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