Overview
The BD14000EFV-C, part of the BD14000EFV-EVK-001 evaluation kit, is a Linear System Integrated Circuit (LSI) designed by ROHM Semiconductor for cell balancing applications. This IC is specifically tailored for balancing power storage elements such as electric double-layer capacitors (EDLC) and power storage capacitors in automotive systems. It integrates all necessary functions for cell balancing into a single chip, making it a comprehensive solution for maintaining the health and efficiency of power storage systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions |
|---|---|---|---|---|---|
| Supply Voltage | 8 | 24 | V | ||
| Cell Voltage Detection Range | 2.4 | 3.1 | V | ||
| Operating Temperature | -40 | 105 | °C | ||
| Package Size | 10x7.6 (t=1) | mm | |||
| ON Resistance | 1 | mΩ | |||
| Common Standard | AEC-Q100 (Automotive Grade) |
Key Features
- AEC-Q100 qualified, ensuring automotive-grade reliability.
- All EDLC cell balancer functions are integrated on a single chip, simplifying system design.
- Self-controlled EDLC balance function with shunt resistance method for simple balancing.
- Supports 4 to 6 cell series connections and allows multiple chip series connections.
- Built-in over-voltage detection flag output with adjustable detection voltage settings.
- Enable control via the ENIN pin for ON/OFF operation.
- Built-in self-check function to ensure proper cell balance operation.
Applications
The BD14000EFV-C is primarily used in automotive systems for balancing electric double-layer capacitors (EDLC) and other power storage capacitors. It is suitable for applications requiring precise cell voltage management to maintain the health and performance of power storage systems. This includes hybrid and electric vehicles, renewable energy systems, and other automotive electronics that rely on efficient power storage.
Q & A
- What is the BD14000EFV-C used for?
The BD14000EFV-C is used as a self-controlled cell balancer for electric double-layer capacitors (EDLC) and power storage capacitors in automotive systems.
- What is the supply voltage range of the BD14000EFV-C?
The supply voltage range is from 8V to 24V.
- What is the cell voltage detection range of the BD14000EFV-C?
The cell voltage detection range is from 2.4V to 3.1V.
- What is the operating temperature range of the BD14000EFV-C?
The operating temperature range is from -40°C to 105°C.
- Is the BD14000EFV-C AEC-Q100 qualified?
- How many cells can the BD14000EFV-C balance?
The BD14000EFV-C can balance 4 to 6 cells in series.
- Can multiple BD14000EFV-C chips be connected in series?
- What is the built-in self-check function of the BD14000EFV-C?
The built-in self-check function ensures that the cell balance operation is working properly by turning on the shunt switch when the cell balance detection voltage is exceeded.
- How is the detection voltage set for the BD14000EFV-C?
The detection voltage can be set using the VSET0, VSET1, and VSET2 pins.
- What is the purpose of the ENIN pin on the BD14000EFV-C?
The ENIN pin is used to control the ON/OFF operation of the cell balancer function.
