SLUSBU9I March 2014 – August 2024 BQ2970 , BQ2971 , BQ2972 , BQ2973
PRODUCTION DATA
For this design example, use the parameters listed in Table 9-1.
DESIGN PARAMETER | EXAMPLE VALUE at TA = 25°C |
---|---|
Input voltage range | 4.5V to 7V |
Maximum operating discharge current | 7A |
Maximum Charge Current for battery pack | 4.5A |
Overvoltage Protection (OVP) | 4.275V |
Overvoltage detection delay timer | 1.2s |
Overvoltage Protection (OVP) release voltage | 4.175V |
Undervoltage Protection (UVP) | 2.8V |
Undervoltage detection delay timer | 150ms |
Undervoltage Protection (UVP) release voltage | 2.9V |
Charge Overcurrent detection (OCC) voltage | –70mV |
Charge Overcurrent Detection (OCC) delay timer | 9ms |
Discharge Overcurrent Detection (OCD) voltage | 100mV |
Discharge Overcurrent Detection (OCD) delay timer | 18ms |
Load Short Circuit Detection SCC) voltage, BAT to –V ≤ threshold | 500mV |
Load Short Circuit Detection (SCC) delay timer | 250µs |
Load Short Circuit release voltage, BAT to –V ≥ Threshold | 1V |