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Cypress S6BP401A汽车ADAS平台电源管理方案

发布者:正大伟业  |  浏览次数:224  |  发布日期:2018-07-09 17:35:18

cypress公司的S6BP401A是用于汽车ADAS平台的电源管理IC,包括内置开关FET的四个2.1MHz降压DC/DC转换器,两个低压降(LDO)稳压器和数字窗口看门狗计时器.开关频率高达2.4MHz,负载电流高达3A,VIN输入电压2.97 V到5.5 V,AEC-Q100规范 (Grade-1),主要用在汽车应用,高级辅助驾驶系统(ADAS),诸如安全摄像机的照相系统和工业应用.本文介绍了S6BP401A主要特性,详细框图,应用电路以及评估板S6SBP401AM2SA1001主要特性,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 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 3 A 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.

S6BP401A主要特性:

 Quad Buck DC/DC Converter (DD1 to DD4)
 VIN Input Range: 4.5 V to 5.5 V
 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 3 A
 Built-in Output Voltage Setting Resistors
 Built-in Compensation Circuits
 Dual LDO (LD1, LD2)
 VIN Input Voltage Range: 2.97 V to 5.5 V
 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
 AEC-Q100 compliant (Grade-1)

S6BP401A应用:

 Automotive Applications
 Advanced Driver Assistance Systems (ADAS)
 Camera Systems such as Security Camera
 Industrial Applications

图1. S6BP401A框图

图1. S6BP401A框图


图2. S6BP401A详细框图

图2. S6BP401A详细框图


图3. S6BP401A架构框图

图3. S6BP401A架构框图


图4. S6BP401A应用电路案例

图4. S6BP401A应用电路案例


图5. S6BP401A典型应用电路

图5. S6BP401A典型应用电路


六路汽车ADAS PMIC评估板S6SBP401AM2SA1001 

S6SBP401AJ0SA1001 and S6SBP401AM2SA1001 are the evaluation kit for power block of automotive ADAS platform.

评估板S6SBP401AM2SA1001主要特性:

• Input voltage range: 4.5 V to 5.5 V
• 6-CH output PMIC for automotive ADAS
• Factory-preset output voltage
• Built-in Switching FETs up to 3A
• Switching frequency: 2.1 MHz (Typ)
• Load-independent Soft-Start
• Size: 3.048 cm × 4.572 cm

图6.评估板S6SBP401AM2SA1001外形图

图6.评估板S6SBP401AM2SA1001外形图


图7.评估板S6SBP401AM2SA1001主要元件分布图

图7.评估板S6SBP401AM2SA1001主要元件分布图


图8.评估板S6SBP401AM2SA1001框图

图8.评估板S6SBP401AM2SA1001框图


评估板S6SBP401AM2SA1001指标:

图9.评估板S6SBP401AM2SA1001电路图

图9.评估板S6SBP401AM2SA1001电路图

图9.评估板S6SBP401AM2SA1001电路图


评估板S6SBP401AM2SA1001材料清单:

评估板S6SBP401AM2SA1001材料清单

评估板S6SBP401AM2SA1001材料清单

图10.评估板S6SBP401AM2SA1001 PCB设计图(1)

图10.评估板S6SBP401AM2SA1001 PCB设计图(1)

图11.评估板S6SBP401AM2SA1001 PCB设计图(2)

图11.评估板S6SBP401AM2SA1001 PCB设计图(2)

图11.评估板S6SBP401AM2SA1001 PCB设计图(2)

详情请见:
http://www.cypress.com/file/197161/download
和http://www.cypress.com/file/258511/download