BQ29413PWR

Product Overview

Category

BQ29413PWR belongs to the category of integrated circuits (ICs) specifically designed for battery protection.

Use

This product is primarily used for protecting lithium-ion and lithium-polymer batteries from overcharging, over-discharging, and short-circuiting.

Characteristics

• Integrated circuit for battery protection
• Designed for lithium-ion and lithium-polymer batteries
• Protects against overcharging, over-discharging, and short-circuiting

Package

BQ29413PWR comes in a small outline package (SOP) with 16 pins.

Essence

The essence of BQ29413PWR lies in its ability to safeguard lithium-ion and lithium-polymer batteries by preventing potential hazards such as overcharging, over-discharging, and short-circuiting.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 2.5V to 6V
• Overvoltage Threshold: 4.2V ± 25mV
• Undervoltage Threshold: 2.5V ± 50mV
• Overcurrent Detection Threshold: 100mV ± 10mV
• Short-Circuit Detection Delay: 8ms ± 1ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VDD: Power supply input
2. GND: Ground reference
3. SDA: Serial data input/output
4. SCL: Serial clock input
5. BAT: Battery voltage input
6. PROTECT: Output indicating protection status
7. FLT: Fault output indicating fault conditions
8. TS: Thermistor input for temperature monitoring
9. VSS: Negative terminal of the battery
10. VDD: Power supply input
11. GND: Ground reference
12. SDA: Serial data input/output
13. SCL: Serial clock input
14. BAT: Battery voltage input
15. PROTECT: Output indicating protection status
16. FLT: Fault output indicating fault conditions

Functional Features

• Overcharge protection: Prevents the battery from being charged beyond safe limits.
• Over-discharge protection: Prevents the battery from being discharged below safe limits.
• Short-circuit protection: Detects and protects against short-circuits in the battery circuit.
• Temperature monitoring: Monitors the battery temperature to prevent overheating.

Advantages and Disadvantages

Advantages

• Effective protection against overcharging, over-discharging, and short-circuiting.
• Compact size and integrated design.
• Wide operating temperature range.
• Reliable performance.

Disadvantages

• Limited compatibility with other battery types.
• Requires proper configuration and setup for optimal performance.
• Higher cost compared to simpler battery protection solutions.

Working Principles

BQ29413PWR operates by continuously monitoring the battery voltage, current, and temperature. It compares these parameters with predefined thresholds to determine if any protection action is required. If an abnormal condition such as overcharging, over-discharging, or short-circuiting is detected, the IC triggers the appropriate protection mechanism to safeguard the battery.

Detailed Application Field Plans

BQ29413PWR finds applications in various fields where lithium-ion and lithium-polymer batteries are used, including: - Portable electronic devices (e.g., smartphones, tablets) - Wearable devices (e.g., smartwatches, fitness trackers) - Electric vehicles and hybrid electric vehicles - Energy storage systems - Medical devices

Detailed and Complete Alternative Models

1. BQ29412PWR: Similar to BQ29413PWR, but with a different pin configuration.
2. BQ29414PWR: Offers additional features such as cell balancing and fuel gauge functionality.
3. BQ29415PWR: Designed for higher voltage battery systems.

These alternative models provide similar battery protection capabilities but may have variations in pin configuration, additional features, or compatibility with specific battery types.

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