ZHCSE10T November 2013 – August 2022 BQ2961 , BQ2962
PRODMIX
- 1 特性
- 2 应用
- 3 说明
- 4 Revision History
- 5 Device Comparison Table
- 6 Pin Configuration and Functions
- 7 Specifications
- 8 Detailed Description
- 9 Application and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
8.4.4 CUSTOMER TEST MODE
The Customer Test Mode (CTM) helps to reduce test time for checking the overvoltage delay-timer parameter once the circuit is implemented into the battery pack. To enter CTM, the VDD pin should be set at least 10 V higher than V3 (see Figure 8-3). The delay timer is greater than 10 ms, but considerably shorter than the timer delay in normal operation. To exit CTM, remove the VDD to VC3 voltage differential of 10 V, so that the decrease in the value automatically causes an exit.
Avoid exceeding any Absolute Maximum Voltages on any pins when placing the device into CTM. Also avoid exceeding Absolute Maximum Voltages for the individual cell voltages (V3–V2), (V2–V1) and (V1–VSS). Stressing the pins beyond the rated limits can cause permanent damage to the device.
Figure 8-3 shows the timing for the Customer Test Mode.
Figure 8-3 Timing for Customer Test ModeFigure 8-4 shows the measurement for current consumption of the product for both VDD and Vx.
Figure 8-4 Configuration for Integrated Circuit Current Consumption Test