O2 锂电池保护AFE前端芯片产品列表

 Charge Current Protection 5 mV to 68.5mV, 0.5mV/step

 Temperature Protection: COT/DOT/CUT/DUT

 Dedicated 3.3V LDO for external micro-controller

 Simultaneous Multi - Cell Balance

 eLock and PWM control input

 End-of-Charge (EOC) function (optional)

 I2C Interface and ALERT Output to Optional External Host

 Low Power Consumption Active: <60uA (Typ) ; Sleep: < 4uA (Typ) Shutdown: < 2.5uA (Typ)

OZ7706A provides two independent discharge current channels. The safety engine uses digital threshold

values to compare with ADC digital outputs to detect DOC1 and COC. This enables high-accuracy current

OZ7706A uses one dedicated fast comparator for DOC2 detection and another for SC detection for each

discharge channel. Each discharge channel has independent thresholds.

 Charge Current Protection 5 mV to 68.5mV, 0.5mV/step

 Temperature Protection: COT/DOT/CUT/DUT

 Dedicated 3.3V LDO for external micro-controller

 Simultaneous Multi - Cell Balance

 eLock and PWM control input

 End-of-Charge (EOC) function (optional)

 I2C Interface and ALERT Output to Optional External Host

 Low Power Consumption Active: <60uA (Typ) ; Sleep: < 4uA (Typ) Shutdown: < 2.5uA (Typ)

OZ7708 provides two independent discharge current channels. The safety engine uses digital threshold

values to compare with ADC digital outputs to detect DOC1 and COC. This enables high-accuracy current

sense with the use of small current sense resistors (e.g. 2.5 mΩ) to reduce power dissipation and heat.

OZ7706A uses one dedicated fast comparator for DOC2 detection and another for SC detection for each

discharge channel. Each discharge channel has independent thresholds.

 Charge Current Protection

 Temperature Protection:

 Voltage-Based State-of-Charge Indicators (Pins for driving 4 LEDs in 28Pin package)

 Low Power Consumption

OZ7710 is a highly integrated, low-cost Battery Pack Protection Integrated Circuit for 5 to 10 serial cells. It

can operate standalone to provide complete protections; it may be used with a host Microcontroller for

more advanced management, if desired. It integrates an ADC to measure cells voltage, temperature and

charge/discharge current. OZ7710 also includes a safety engine that performs high accuracy and high

reliable protections: OV, UV, COC, DOC (DOC1 and DOC2), SC, COT, DOT, CUT (Optional), DUT

(Optional), CBOT, CTO and EOC.

for higher cell balance current, an external cell balance circuit may be used.

For DOC2 detection OZ7710 uses a fast comparator and a second fast comparator for Short Circuit

detection.