LCS705HG集成电路（IC）的全半桥驱动器规格书PDF中文资料

LCS705HG属于集成电路（IC）的全半桥驱动器。由荷兰帕沃英蒂格盛有限公司制造生产的LCS705HG全半桥驱动器器件属于电桥驱动器电源管理集成电路 (PMIC) 系列，包含两个或多个功率晶体管，以及在外部器件控制下将其用作开关所需的电路。这些晶体管通常在内部配置为成对串联连接（称为半桥），因而任意指定晶体管对之间的结点都可以连接至两个电源轨中的任一个。这类器件常用于将控制器件（如微控制器）提供的低电平信号转换为操作执行器（如步进电机或无刷电机）所需的较大功率信号。

特性 Features

• LLC half-bridge power stage incorporating controller, high and

low-side gate drives, and high-voltage power MOSFETs

• Eliminates up to 30 external components

• High maximum operating frequency of 1 MHz

• Nominal steady-state operation up to 500 kHz

• Dramatically reduces magnetics size and allows use of SMD

ceramic output capacitors

• Precise duty symmetry balances output rectifier current, improving

efficiency

• 50% ±0.3% typical at 300 kHz

• Comprehensive fault handling and current limiting

• Programmable brown-in/out thresholds and hysteresis

• Undervoltage (UV) and overvoltage (OV) protection

• Programmable over-current protection (OCP)

• Short-circuit protection (SCP)

• Over-temperature protection (OTP)

• Programmable dead-time for optimized design

• Programmable burst mode maintains regulation at no-load and

improves light load efficiency

• Programmable soft-start time and delay before soft-start

• Accurate programmable minimum and maximum frequency limits

• Single package designed for high-power and high-frequency

• Reduces assembly cost and reduces PCB layout loop areas

• Simple single clip attachment to heat sink

• Staggered pin arrangement for simple PC board routing and

high-voltage creepage requirements

• Paired with HiperPFS PFC product gives complete, high efficiency,

low part count PSU solutions

Applications

• High-efficiency power supplies (80 PLUS Silver, Gold and Platinum)

• LCD TV power supplies

• LED street and area lighting

• Printer power supplies

• Audio amplifier

描述 Description

The HiperLCS™ is an integrated LLC power stage incorporating a

multi-function controller, high-side and low-side gate drivers, plus two

power MOSFETs in a half-bridge configuration. Figure 1 shows a

simplified schematic of a HiperLCS based power stage where the LLC

resonant inductor is integrated into the transformer.

The variable frequency controller provides high-efficiency by

switching the power MOSFETs at zero voltage (ZVS), eliminating

switching losses.