ZHCSGO5B June 2017 – March 2022 BQ25600 , BQ25600D
PRODUCTION DATA
- 1 特性
- 2 應(yīng)用
- 3 說明
- 4 Revision History
- 5 說明（續(xù)）
- 6 Pin Configuration and Functions
- 7 Specifications
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3
Feature Description
- 8.3.1 Power-On-Reset (POR)
- 8.3.2 Device Power Up from Battery without Input Source
- 8.3.3 Power Up from Input Source
- 8.3.4 Boost Mode Operation From Battery
- 8.3.5 Host Mode and Standalone Power Management
- 8.3.6 Power Path Management
- 8.3.7 Battery Charging Management
- 8.3.8 Protections
- 8.4 Device Functional Modes
- 8.5 Programming
- 8.6 Register Maps
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
封裝選項
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- YFF|30
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
訂購信息
8.3.7.5 JEITA Guideline Compliance During Charging Mode
To improve the safety of charging Li-ion batteries, JEITA guideline was released on April 20, 2007. The guideline emphasized the importance of avoiding a high charge current and high charge voltage at certain low and high temperature ranges.
To initiate a charge cycle, the voltage on TS pin must be within the VT1 to VT5 thresholds. If TS voltage exceeds the T1-T5 range, the controller suspends charging and waits until the battery temperature is within the T1 to T5 range.
At cool temperature (T1-T2), JEITA recommends the charge current to be reduced to half of the charge current or lower. At warm temperature (T3-T5), JEITA recommends charge voltage less than 4.1 V.
The charger provides flexible voltage/current settings beyond the JEITA requirement. The voltage setting at warm temperature (T3-T5) can be VREG or 4.1V (configured by JEITA_VSET). The current setting at cool temperature (T1-T2) can be further reduced to 20% of fast charge current (JEITA_ISET).
Figure 8-3 JEITA
Profile: Charging Current
Figure 8-4 JEITA
Profile: Charging Voltage
Figure 8-5 TS Resistor NetworkEquation 1 through Equation 2 describe updates to the resistor bias network.
Select 0°C to 60°C range for Li-ion or Li-polymer battery:
- RTHCOLD = 27.28 KΩ
- RTHHOT = 3.02 KΩ
- RT1 = 5.23 KΩ
- RT2 = 30.9 KΩ