SLUSAX1L December   2012  – June 2021 BQ7718

PRODMIX  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 DC Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Sense Positive Input for Vx
      2. 8.3.2 Output Drive, OUT
      3. 8.3.3 Supply Input, VDD
    4. 8.4 Device Functional Modes
      1. 8.4.1 NORMAL Mode
      2. 8.4.2 OVERVOLTAGE Mode
      3. 8.4.3 Customer Test Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Design Requirements
      2. 9.1.2 Detailed Design Procedure
        1. 9.1.2.1 Application Curves
    2. 9.2 Systems Examples
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
    2. 12.2 Third-Party Products Disclaimer
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Support Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

9.1.1 Design Requirements

Changes to the ranges stated in Table 9-1 will impact the accuracy of the cell measurements. Figure 9-1 shows each external component.

Table 9-1 Parameters
PARAMETER EXTERNAL COMPONENT MIN NOM MAX UNIT
Voltage monitor filter resistance RIN 900 1000 1100 Ω
Voltage monitor filter capacitance CIN 0.01 0.1 µF
Supply voltage filter resistance RVD 100 1K Ω
Supply voltage filter capacitance CVD 0.1 µF
CD external delay capacitance 0.1 1 µF
OUT Open drain version pull-up resistance to PACK+ 100 kΩ
Note:

The device is calibrated using an RIN value = 1 kΩ. Using a value other than this recommended value changes the accuracy of the cell voltage measurements and VOV trigger level.