SLUSAH0F October   2011  – November 2019 BQ25504

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
    1.     Solar Application Circuit
  4. Revision History
  5. Description (continued)
  6. Pin Configuration and Functions
    1.     Pin Functions
  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 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Maximum Power Point Tracking
      2. 8.3.2 Battery Undervoltage Protection
      3. 8.3.3 Battery Overvoltage Protection
      4. 8.3.4 Battery Voltage in Operating Range (VBAT_OK Output)
      5. 8.3.5 Nano-Power Management and Efficiency
    4. 8.4 Device Functional Modes
      1. 8.4.1 Cold-Start Operation (VSTOR < VSTOR_CHGEN, VIN_DC > VIN(CS) and PIN > PIN(CS))
      2. 8.4.2 Main Boost Charger Enabled (VSTOR > VSTOR_CHGEN, VIN_DC > VIN(DC) and EN = LOW )
      3. 8.4.3 Thermal Shutdown
  9. Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Storage Element Selection
      2. 9.1.2 Inductor Selection
      3. 9.1.3 Capacitor Selection
        1. 9.1.3.1 VREF_SAMP Capacitance
        2. 9.1.3.2 VIN_DC Capacitance
        3. 9.1.3.3 VSTOR Capacitance
        4. 9.1.3.4 Additional Capacitance on VSTOR or VBAT
    2. 9.2 Typical Applications
      1. 9.2.1 Solar Application Circuit
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curves
      2. 9.2.2 TEG Application Circuit
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curves
      3. 9.2.3 MPPT Disabled, Low Impedance Source Application Circuit
        1. 9.2.3.1 Design Requirements
        2. 9.2.3.2 Detailed Design Procedure
        3. 9.2.3.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Considerations
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
      2. 12.1.2 Zip Files
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    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

Typical Characteristics

VSTOR = Keithley Sourcemeter configured to measure current & voltage source set to hold the VSTOR voltage = 1.8V, 3.0V or 5.5V; VBAT_OV = 5.5V and measurement taken between MPPT measurements
BQ25504 G001_slusah0.png
VIN_DC = Keithley Source Meter configured with ICOMP = 10 µA and outputting 0 to 3.0 V
Figure 1. Efficiency vs Input Voltage
BQ25504 G003_slusah0.png
VIN_DC = Keithley Source Meter configured with ICOMP = 10 mA and voltage source varied from 0.1 V to 3.0 V
Figure 3. Efficiency vs Input Voltage
BQ25504 G005_slusah0.png
VIN_DC = Keithley Source Meter configured with voltage source = 1.0 V and ICOMP varied from 0.01 mA to 100 mA
Figure 5. Efficiency vs Input Current
BQ25504 G007_slusah0.png
VIN_DC = Keithley Source Meter configured with voltage source = 0.2 V and ICOMP varied from 0.01 mA to 100 mA
VSTOR = Keithley Source Meter configured to measure current and voltage source set to hold the VSTOR voltage = 2.0 V, 3.0 V or 5.5 V
Figure 7. Efficiency vs Input Current
BQ25504 G009_slusah0.png
Figure 9. Sample Period vs Temperature
BQ25504 G002_slusah0.png
VIN_DC = Keithley Source Meter configured with ICOMP = 100 µA and voltage source varied from 0.1 V to 3.0 V
Figure 2. Efficiency vs Input Voltage
BQ25504 G004_slusah0.png
VIN_DC = Keithley Source Meter configured with voltage source = 2.0 V and ICOMP varied from 0.01 mA to 100 mA
Figure 4. Efficiency vs Input Current
BQ25504 G006_slusah0.png
VIN_DC = Keithley Source Meter configured with voltage source = 0.5 V and ICOMP varied from 0.01 mA to 100 mA
Figure 6. Efficiency vs Input Current
BQ25504 G008_slusah0.png
VIN_DC = floating
VBAT = Keithley Sourcemeter configured to measure current and voltage source varied from 1.8 V, 3 V or 4 V
Figure 8. VSTOR Quiescent Current vs Temperature
BQ25504 G010_slusah0.png
Figure 10. Settling Period vs Temperature