[方案]TIPMP15014汽车信息娱乐电源系统参考方案

TI公司的PMP15014是汽车信息娱乐电源系统参考方案,接纳一级功率系统满意高输入电压的需求,并提供差别负载的低压多个输出,还提供瞬态和极性相反掩护,工作频率2.1MHz,以避开AM频段,具有优异的EMI性能.参考设备选用LM53625-Q1/lm53635-Q1同步降压稳压器.本京电港论坛文章先容了LM53625-Q1/LM53635-Q1主要特点,功能框架图,LM53635通用应用电路原理图纸和几种典范应用电路,以及汽车信息娱乐电源系统PMP15014主要特点,电路原理图纸,质料清单和PCB线路板设计原理图.

The LM53625-Q1/LM53635-Q1 synchronous buck regulator is optimized for automotive applications, providing an output voltage of 5 V, 3.3 V, or an adjustable output. Advanced high-speed circuitry allows the LM53625-Q1/LM53635-Q1 to regulate from an input of 18 V to an output of 3.3 V at a fixed frequency of 2.1 MHz. Innovative architecture allows this device to regulate a 3.3-V output from an input voltage of only 3.55 V. All aspects of the LM53625-Q1/LM53635-Q1 are optimized for automotive and performance-driven industrial customers. An input voltage range up to 36 V, with transient tolerance up to 42 V, eases input surge protection design. The automotive-qualified Hotrod QFN package with wettable flanks reduces parasitic inductance and resistance while increasing efficiency, minimizing switch node ringing, and dramatically lowering electromagnetic interference (EMI). An open-drain reset output, with built-in filtering and delay, provides a true indication of system status. This feature negates the requirement for an additional supervisory component, saving cost and board space. Seamless transition between PWM and PFM modes and low quiescent current (only 15 µA for the 3.3 V option) ensure high efficiency and superior transient responses at all loads.

LM53625-Q1/LM53635-Q1主要特点:

AEC-Q100 Automotive Qualified:
Device Temperature Grade 1: C40℃ to +125℃ Ambient Operating Temperature Range
Device HBM Classification Level 2
Device CDM Classification Level C6
C40℃ to +150℃ Junction Temperature Range
15-µA Quiescent Current at no Load (Typical) with 3.3-V Output
4 mm × 5 mm, 0.5-mm Pitch VQFN Package WithWettable Flanks and 0.6-mm V_IN Spacing
Low EMI and Switch Noise
Spread Spectrum Option
External Frequency Synchronization
RESET Output with Internal Filter and 3-ms Release Timer
Pin-Selectable Forced PWM Mode
Built-In Compensation, Soft Start, Current Limit, Thermal Shutdown, and UVLO
0.6-V Dropout at 3.5 A at 105℃ T_A
±1% Output Voltage Tolerance (C40℃ to 125℃ T_J)
Available With Fixed 5-V, 3.3-V or Adjustable Output

图1{京电港论坛}.LM53625-Q1/LM53635-Q1功能框架图

图2{京电港论坛}.LM53635通用应用电路原理图纸

图3{京电港论坛}.LM53635固定5V/3.5A输出电源电路原理图纸

图4{京电港论坛}.LM53635固定3.3V/3.5A输出电源电路原理图纸

图5{京电港论坛}.LM53635 6V输出电源电路原理图纸

汽车信息娱乐电源系统PMP15014

This solution is designed to be an automotive off-battery front end power supply for infotainment systems. It was created using a one stage power system meeting high voltage input needs and providing low voltage for multi output rails for different load needs. The system also provides transient and reverse polarity protection. The Wide Vin Buck stage is  working at 2.1Mhz to avoid AM band and has superior  EMI performance with an differential  EMI filter to support CISPER 25.

图6{京电港论坛}.汽车信息娱乐电源系统PMP15014外形实物图

汽车信息娱乐电源系统PMP15014主要特点:

Wide Vin 2.1MHz Integrated , Low Iq Buck Converter
Boost for 5V CAN supply
Transient and Reverse Polarity Protection and EMI filter added
The system disconnet the second stage power and keep 3.3V sustained when Input votlage lower than 4.5V

图7{京电港论坛}.汽车信息娱乐电源系统PMP15014电路原理图纸
汽车信息娱乐电源系统PMP15014质料清单:



图8{京电港论坛}.PMP15014 PCB线路板设计原理图(1)

图9{京电港论坛}.PMP15014 PCB线路板设计原理图(2)

图1{京电港论坛}0.PMP15014 PCB线路板设计原理图(3)

图1{京电港论坛}1.PMP15014 PCB线路板设计原理图(4)

图1{京电港论坛}2.PMP15014 PCB线路板设计原理图(5)

图1{京电港论坛}3.PMP15014 PCB线路板设计原理图(6)

图1{京电港论坛}4.PMP15014 PCB线路板设计原理图(7)

图1{京电港论坛}5.PMP15014 PCB线路板设计原理图(8)

图1{京电港论坛}6.PMP15014 PCB线路板设计原理图(9)
详情请复制打开此衔接地址:
http://www.ti.com/lit/ds/symlink/lm53635-q1.pdf
和http://www.ti.com/lit/df/tidrls2/tidrls2.pdf
以及http://www.ti.com/lit/df/tidrls3/tidrls3.pdf
和http://www.ti.com/lit/df/tidrls5/tidrls5.pdf
lm53635-q1.pdf
tidrls2.pdf
tidrls3.pdf
tidrls5.pdf