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ODM 12 Layer Fast Turnaround PCBA Assy Printed Circuit Board for Automobile
ODM 12 Layer Fast Turnaround PCBA Assy Printed Circuit Board for Automobile
Specifications
MOQ :
1
Price :
Contact our PCB engineer
Payment Terms :
T/T
Layer :
12 L
Min. Component Size :
0201
Board Thickness :
2.5mm
Surface Finish :
ENIG
Pin Space :
0.1mm
Application :
EV Battery Management (BMS)​​
Description

12 Layer Automotive PCBA for EV Battery Management (BMS)​​

♦ What is Automotive PCBA for EV Battery Management (BMS)??

Automotive PCBA (Printed Circuit Board Assembly) for EV Battery Management Systems (BMS)​​ refers to the specialized electronic assemblies that monitor, control, and optimize the performance, safety, and lifespan of lithium-ion (or other) battery packs in electric vehicles (EVs).

♦ Key Functions of BMS PCBA in EVs:

1. Voltage & Current Monitoring​​

    • Measures individual cell voltages (e.g., 96+ cells in a Tesla pack).
    • Tracks charge/discharge current for ​​State of Charge (SOC)​​ estimation.

​​2. Temperature Sensing & Thermal Management​​

    • Uses ​​NTC/PTC thermistors​​ to detect overheating.
    • Triggers cooling systems (liquid/air) to prevent thermal runaway.

​​3. Cell Balancing (Active/Passive)​​

    • ​​Passive Balancing:​​ Burns excess energy via resistors (cheaper, less efficient).
    • ​​Active Balancing:​​ Transfers energy between cells (higher efficiency).

​​4. Fault Protection & Safety​​

    • Prevents:
      • ​​Overcharge​​ (can cause fire)
      • ​​Over-discharge​​ (reduces battery life)
      • ​​Short circuits​​ (isolates faulty cells)

​​5. Communication & Data Logging​​

      • ​​CAN bus / LIN bus​​ communication with the vehicle’s ECU.
      • Stores historical data for diagnostics (e.g., Tesla’s battery logs).

♦ BMS PCBA Design & Components:​

​​Component​​ ​​Role in BMS​​ ​​Example Parts​​
​​Microcontroller (MCU)​​ Brain of BMS (runs algorithms) NXP S32K, TI Hercules, STM32
​​AFE (Analog Front End)​​ Measures cell voltages Texas Instruments BQ76PL536, LTC6811
​​Isolation ICs​​ Protects high-voltage circuits Silicon Labs Si823x, ADuM4160
​​Current Sensor​​ Measures pack current Hall-effect sensors (Allegro ACS712), Shunt resistors
​​MOSFETs/Relays​​ Controls charge/discharge Infineon OptiMOS, TE Connectivity relays
​​Communication ICs​​ CAN/LIN transceivers NXP TJA1042, Microchip MCP2562

♦ Types of Automotive PCB Assemblies:

​​Application​​ ​​PCB Requirements​​ ​​Examples​​
​​Engine Control Unit (ECU)​​ High-temperature resistance, EMI shielding Fuel injection, ignition timing
​​Infotainment System​​ High-speed signal integrity, multilayer Touchscreens, GPS, Bluetooth
​​ADAS (Radar/LiDAR)​​ RF/microwave PCBs, low-loss materials Collision avoidance, adaptive cruise control
​​EV Battery Management (BMS)​​ High-current PCBs, thermal management Cell balancing, charge monitoring
​​LED Lighting​​ Aluminum PCBs for heat dissipation Headlights, interior lightin

♦ DQS's PCB Assembly Capability

Item

Normal

Special

SMT

Assembly

PCB(used for SMT)

specification

Length and Width( L* W)

Minimum

L≥3mm, W≥3mm

L＜2mm

Maximum

L≤800mm, W≤460mm

L ＞ 1200mm, W＞500mm

Thickness( T)

Thinnest

0.2mm

T＜0.1mm

Thickest

4 mm

T＞4.5mm

SMT components specification

Outline Dimension

Min size

0201(0.6mm*0.3mm)

01005(0.3mm*0.2mm)

Max size

200 * 125

200 * 125

component thickness

T≤15mm

6.5mm＜T≤15mm

QFP,SOP,SOJ

(multi pins)

Min pin space

0.4mm

0.3mm≤Pitch＜0.4mm

CSP/ BGA

Min ball space

0.5mm

0.3mm≤Pitch＜0.5mm

DIP

Assembly

PCB specification

Length and Width( L* W)

Minimum

L≥50mm, W≥30mm

L＜50mm

Maximum

L≤1200mm, W≤450mm

L≥1200mm, W≥500mm

Thickness( T)

Thinnest

0.8mm

T＜0.8mm

Thickest

3.5mm

T＞2mm

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ODM 12 Layer Fast Turnaround PCBA Assy Printed Circuit Board for Automobile

Ask Latest Price
Product Detail
MOQ :
1
Price :
Contact our PCB engineer
Payment Terms :
T/T
Layer :
12 L
Min. Component Size :
0201
Board Thickness :
2.5mm
Contact Supplier
ODM 12 Layer Fast Turnaround PCBA Assy Printed Circuit Board for Automobile

DQS Electronic Co., Limited

Verified Supplier
1 Years
shenzhen
Business Type :
Manufacturer
Main Products :
PCB Manufacturing, PCB Prototype, SMT Assembly
Employee Number :
>800
Certification Level :
Verified Supplier
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