BQ7790508PWR

Product Overview

Category

BQ7790508PWR belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for battery management in various electronic devices.

Characteristics

• Integrated circuit designed for battery management
• Provides protection and monitoring functions
• Enables efficient charging and discharging of batteries
• Supports multiple battery chemistries
• Offers high accuracy and reliability

Package

BQ7790508PWR is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of BQ7790508PWR lies in its ability to ensure safe and optimal performance of batteries in electronic devices.

Packaging/Quantity

This product is typically packaged in reels, with each reel containing a specific quantity of ICs.

Specifications

• Input Voltage Range: 2.7V to 4.5V
• Operating Temperature Range: -40°C to +85°C
• Number of Pins: 20
• Battery Chemistry Compatibility: Li-Ion, Li-Polymer, NiMH, NiCd
• Protection Features: Overvoltage, Undervoltage, Overcurrent, Short Circuit
• Communication Interface: I2C

Detailed Pin Configuration

1. VDD: Power supply input
2. GND: Ground reference
3. SDA: Serial data line for communication
4. SCL: Serial clock line for communication
5. BAT: Battery voltage input
6. TS: Thermistor input for temperature sensing
7. ALERT: Interrupt output for fault conditions
8. STAT: Status output indicating device state
9. PROG: Programming pin for configuring device parameters
10. NC: No connection

Functional Features

• Overvoltage protection: Safeguards the battery from excessive voltage levels
• Undervoltage protection: Prevents the battery from discharging below a safe threshold
• Overcurrent protection: Limits the current flow to protect the battery and circuitry
• Short circuit protection: Detects and isolates short circuits to prevent damage
• Temperature monitoring: Measures battery temperature for thermal management
• Communication interface: Allows external devices to communicate with the IC

Advantages and Disadvantages

Advantages

• Comprehensive battery protection and management features
• Wide compatibility with different battery chemistries
• High accuracy and reliability in performance
• Compact package size for space-constrained applications
• Flexible programming options for customization

Disadvantages

• Limited pin count may restrict additional functionalities
• Requires external components for complete battery management system

Working Principles

BQ7790508PWR operates by continuously monitoring the battery voltage, current, and temperature. It compares these parameters against predefined thresholds to detect any abnormal conditions. In case of an overvoltage, undervoltage, overcurrent, or short circuit event, the IC takes appropriate actions to protect the battery and connected circuitry. The device communicates its status and fault conditions through the ALERT and STAT pins.

Detailed Application Field Plans

BQ7790508PWR finds applications in various electronic devices that utilize rechargeable batteries. Some common application fields include: - Portable consumer electronics (e.g., smartphones, tablets) - Wearable devices (e.g., smartwatches, fitness trackers) - Medical devices (e.g., portable monitors, insulin pumps) - Electric vehicles (e.g., electric bikes, scooters)

Detailed and Complete Alternative Models

1. BQ7790507PWR
2. BQ7790509PWR
3. BQ7790510PWR
4. BQ7790511PWR
5. BQ7790512PWR

These alternative models offer similar functionality and features, providing options for different system requirements and specifications.

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