Inspect the COMP pin capacitor for leakage or the CS resistor for value drift.
Future work may include:
| Parameter | Conditions | Min | Typ | Max | Unit | |--------------------------|--------------------------|-------|-------|-------|-------| | Input Voltage | | 2.5 | 3.7 | 6.0 | V | | Output Voltage (fixed) | Iout = 10mA | 3.267 | 3.3 | 3.333 | V | | Output Voltage (adj.) | Vref = 0.6V | 0.6 | - | 6.0 | V | | Dropout Voltage | Iout = 100mA, Vout=3.3V | - | 180 | 300 | mV | | Quiescent Current | No load | - | 25 | 50 | µA | | Output Current | | - | 300 | 500 | mA | | Line Regulation | Vin=2.5 to 6V, Iout=10mA | - | 0.1 | 0.2 | %/V | | Load Regulation | Iout=1 to 300mA | - | 0.5 | 1 | % | | Ripple Rejection (PSRR) | f=1kHz | 40 | 55 | - | dB | | Thermal Shutdown | | 150 | 160 | - | °C | 8682l ic datasheet
| Pin No. | Name | Function Description | |---------|-----------|-------------------------------------------------------------| | 1 | CHRG | Open-drain charge status output (active low – charging) | | 2 | GND | Ground connection | | 3 | BAT | Battery connection pin (to positive terminal of Li-ion cell) | | 4 | VCC | Input supply voltage (4.5V to 6.5V typical) | | 5 | STDBY | Open-drain standby/complete status output (active low – done)| | 6 | PROG | Charge current programming pin (connect resistor to GND) | Inspect the COMP pin capacitor for leakage or