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BQ21062 bảng dữ liệu(PDF) 24 Page - Texas Instruments |
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BQ21062 bảng dữ liệu(HTML) 24 Page - Texas Instruments |
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24 / 69 page  Table 9-3. Interrupt Triggers and Fault Condition Response (continued) FAULT / FLAG DESCRIPTION INTERRUPT TRIGGER BASED ON STATUS BIT CHANGE CHARGER BEHAVIOR CHARGER SAFETY TIMER PMID BEHAVIOR VIN_PGOOD_FLAG Set when VIN changes PGOOD status Rising and Falling Edge If VIN_PGOOD_STAT is low, charging is disabled. Reset VIN powered (if VIN_PGOOD_STAT =1) unless PMID_MODE is not 00. VIN_OVP_FAULT_FL AG Set when VIN > VOVP Rising Edge Charging is paused until condition disappears Reset BAT powered BAT_OCP_FAULT_FL AG Set when IBAT > IBATOCP Rising Edge Disabled (BAT only condition) N/A Disconnect BAT BAT_UVLO_FAULT_F LAG Set when VBAT < VBATUVLO Rising Edge Enabled No effect IN powered of VIN is valid TS_COLD_FLAG Set when VTS > VTS_COLD Rising Edge Charging paused until condition is cleared Paused IN powered of VIN is valid TS_COOL_FLAG Set when VTS_COLD > VTS > VTS_COOL Rising Edge Enabled. Reduced charge current. Doubled if option is enabled IN powered of VIN is valid TS_WARM_FLAG Set when VTS_HOT < VTS < VTS_WARM Rising Edge Enabled. Reduce battery regulation voltage. No effect IN powered of VIN is valid TS_HOT_FLAG Set when VTS < VHOT Rising Edge Charging paused until condition is cleared Paused IN powered of VIN is valid TS_OPEN_FLAG Set when VTS > VTS_OPEN Rising Edge Charging is paused until condition disappears Paused N/A WD_FAULT_FLAG Set when I2C watchdog timer expires Rising Edge Enabled N/A N/A SAFETY_TMR_FAULT _FLAG Set when safety Timer expires. Cleared after VIN or CE toggle Rising Edge Disabled until VIN or CE toggle Reset after flag is cleared IN powered of VIN is valid LS_LDO_OCP_FAULT _FLAG Set when LDO output current exceeds OCP condition Rising Edge N/A N/A N/A MRWAKE1_TIMEOUT _FLAG Set when MR is low for at least tWAKE1 Rising Edge N/A N/A N/A MRWAKE2_TIMEOUT _FLAG Set when MR is low for at least tWAKE2 Rising Edge N/A N/A N/A MRRESET_WARN_FL AG Set when MR is low for at least tRESETWARN Rising Edge N/A N/A N/A TSHUT No flag. Die temperature exceeds thermal shutdown threshold is reached N/A Disabled Disabled Disabled 9.3.10 Power Good ( PG) Pin The PG pin is an open-drain output that by default indicates when a valid IN supply is present. It may also be configured to be a general purpose output (GPO) controlled through I2C or to be a level shifted version of the MR input signal. Connect PG to the desired logic voltage rail using a 1-kΩ to 100-kΩ resistor, or use with an LED for visual indication. See Table 9-30 for details. 9.3.11 External NTC Monitoring (TS) The I2C interface allows the user to easily implement the JEITA standard for systems where the battery pack thermistor is monitored by the host. Additionally, the device provides a flexible voltage based TS input for BQ21062 SLUSE42 – JULY 2020 www.ti.com 24 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: BQ21062 |
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Mô tả tương tự - BQ21062 |
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