Automotive용 LS 전선 입니다.

검색 하다보니 차량 DIY하시는 분들이 직접 구해서 쓰시는 것 같아서 한번 찾아 봤는데..

특징이 Low-tension이네요....??

스펙만 보고는 뭐가 좋은지 잘 모르겠습니다...

실제 차량에서 사용하는 케이블이 텐션이 없어서 좀 뻑뻑 하긴 합니다.

이유가 뭘까요?

Datasheet 입니다.

LS_Automotive_Wire&Cable_EN_05.pdf

STM32 저전력 MCU 입니다.

LCD 인터페이스에 Analog Comparator, OPAMP까지 들어 있고,

EEPROM도 들어 있네요.

CORTEX-M3 Platform 그대로 활용 할 수 있어서 저전력 기기 구성시 사용하면 좋을 듯 합니다.

The STM32L-DISCOVERY and 32L152CDISCOVERY kits help you to discover the STM32L ultra low power features and to develop and share your applications.

They are based on an STM32L152RBT6 and an STM32L152RCT6, respectively; and include an ST-Link/V2 embedded debugging tool interface, an LCD (24 segments, 4 commons), LEDs, pushbuttons, a linear touch sensor or touchkeys.

Download
Data Brief

Key Features

• STM32L152RBT6 (128 KB Flash memory, 16 KB RAM, 4 KB EEPROM) or STM32L152RCT6 (256 KB Flash memory, 32 KB RAM, 8 KB EEPROM) microcontroller in an LQFP64 package
• On-board ST-Link/V2 with selection mode switch to use the kit as a standalone ST-Link/V2 (with SWD connector for programming and debugging)
• Board power supply: through USB bus or from an external 3.3 or 5 V supply voltage
• External application power supply: 3 V and 5 V
• I_DD current measurement
• LCD
• DIP28 package
• 24 segments, 4 commons
• Four LEDs:
• LD1 (red/green) for USB communication
• LD2 (red) for 3.3 V power on
• Two user LEDs, LD3 (green) and LD4 (blue)
• Two pushbuttons (user and reset)
• One linear touch sensor or four touchkeys
• Extension header for LQFP64 I/Os for quick connection to prototyping board and easy probing 
• 
  

STM32L 계열은 MicroXplorer 프로그램으로 아래와 같이 예상 Power Consumption을 예측 할 수 있네요.

출처 : TI

내용 : Understanding the Terms and Definitions of LDO Voltage Regulators

점수 : 90점

첨부 참고 하세요!!

slva079.pdf

LDO 선택시 중요 Parameter에 대한 자세한 설명입니다.

LDO 효율에 대한 관한 명확한 설명도 반갑습니다.

1 Dropout Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2 Quiescent Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3 Standby Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

4 Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

5 Transient Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

6 Line Regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

7 Load Regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

8 Power Supply Rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

9 Output Noise Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

10 Instability of LDO Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

11 Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

12 Power Dissipation and Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

13 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12