ZHCS292H september 2009 – february 2021 BQ24040 , BQ24041 , BQ24045
PRODUCTION DATA
- 1
- 1 特性
- 2 应用
- 3 说明
- 4 Revision History
- 5 Device Comparison
- 6 Pin Configuration and Functions
- 7 Specifications
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3 Feature Description
- 8.4
Device Functional Modes
- 8.4.1 CHG and PG LED Pull-up Source
- 8.4.2 Auto Start-up (BQ24041)
- 8.4.3 IN-DPM (VIN-DPM or IN-DPM)
- 8.4.4 OUT
- 8.4.5 ISET
- 8.4.6 PRE_TERM – Pre-Charge and Termination Programmable Threshold, BQ24040/5
- 8.4.7 ISET2
- 8.4.8 TS (BQ24040/5)
- 8.4.9 Termination and Timer Disable Mode (TTDM) - TS Terminal High
- 8.4.10 Timers, BQ24040 and BQ24045 only
- 8.4.11 Termination
- 8.4.12 Battery Detect Routine
- 8.4.13 Refresh Threshold
- 8.4.14 Starting a Charge on a Full Battery
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
8.4.14 Starting a Charge on a Full Battery
The termination threshold is raised by ≉14%, for the first minute of a charge cycle so if a full battery is removed and reinserted or a new charge cycle is initiated, that the new charge terminates (less than 1 minute). Batteries that have relaxed many hours may take several minutes to taper to the termination threshold and terminate charge.
Figure 8-7 Battery Detect Routine (BQ24040)