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Cypress S6BP401A汽车ADAS平台电源管理方案

来源: 中电网
2019-01-10
类别:汽车电子
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文章创建人 拍明芯城

原标题:Cypress S6BP401A汽车ADAS平台电源管理方案

  cypress公司的S6BP401A是用于汽车ADAS平台的电源管理IC,包括具有内置开关FET的四个2.1MHz DC/DC转换器,两个低压降的稳压器(LDO)和数字窗看门狗定时器,输入电压4.5V-5.5V,主要用在汽车,先进驾驶辅助系统(ADSA),照相系统和工业应用.本文介绍了S6BP401A主要特性,功能框图和框图,应用电路以及评估板S6SBP401AM2SA1001主要指标,框图,电路图,材料清单和PCB设计图.

  S6BP401A is a power management IC, consists of quad buck 2.1 MHz DC/DC converter with built-in switching FETs, dual LowDrop-out regulator (LDOs) and a digital windowed watchdog timer. Having the switching FETs built-in, S6BP401A realizes highpower conversion efficiency and high switching frequency up to 2.4 MHz. The internal FETs are capable to handle up to 3A load. AsS6BP401A employs the current mode architecture, it has fast load transient response. Built-in output voltage setting resistors andcompensation circuits reduce BOM cost and component area.

  S6BP401A主要特性:

  Quad Buck DC/DC Converter (DD1 to DD4)

  VIN Input Range: 4.5V to 5.5V

  Switching Frequency

  External clock mode: 1.8 MHz to 2.4 MHz

  Internal clock mode: 2.0 MHz to 2.2 MHz

  Built-in Switching FETs up to 3A

  Built-in Output Voltage Setting Resistors

  Built-in Compensation Circuits

  Dual LDO (LDO1, LDO2)

  VIN Input Voltage Range: 2.97V to 5.5V

  Built-in Output Voltage Setting resistors

  Power Good Monitor Output for each DC/DC Converters,LDOs

  Built-in Windowed Watchdog Timer (WDT)

  Under Voltage Lockout (UVLO)

  Thermal Shutdown (TSD)

  Over Current Protection (OCP)

  Over Voltage Protection (OVP)

  Independent Enabling for each DC/DC Converters and LDOs

  Load-independent Soft-Start

  Built-in Discharge Resistors

  Small 6 mm × 6 mm QFN-40 Package

  S6BP401A应用:

  Automotive Applications

  Advanced Driver Assistance Systems (ADAS)

  Camera Systems such as Security Camera

  Industrial Applications

  图1.S6BP401A功能框图

  图2.S6BP401A框图

  图3.S6BP401A应用电路图

  评估板S6SBP401AM2SA1001

  S6SBP401AM2SA1001 is the evaluation kit for power block for automotive ADAS platform. The board implements power management IC S6BP401A.

  S6BP401A is a power management IC, consists of quad buck 2.1 MHz DC/DC converter with built-in switching FETs, dual Low Drop-out regulator (LDOs) and a digital windowed watchdog timer. Having the switching FETs built-in, S6BP401A realizes high power conversion efficiency and high switching frequency up to 2.4 MHz. The internal FETs are capable to handle up to 3A load. As S6BP401A employs the current mode architecture, it has fast load transient response. Built-in output voltage setting resistors and compensation circuits reduce BOM cost and component area.

  图4.评估板S6SBP401AM2SA1001外形图

  图5.评估板S6SBP401AM2SA1001功能示意图

  评估板S6SBP401AM2SA1001指标:

  图6.评估板S6SBP401AM2SA1001电路图

  评估板S6SBP401AM2SA1001材料清单:

  图7.评估板S6SBP401AM2SA1001 PCB元件布局图

  图8.评估板S6SBP401AM2SA1001 PCB走线布局图


责任编辑:HanFeng

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