The R5402N Series are high input voltage CMOS-based protection ICs for over-charge/discharge of rechargeable one cell Lithium-ion (Li-ion) / Lithium polymer excess load current, further include a short circuit protector for preventing large external short circuit current and excess charge/discharge-current.
Each of these ICs is composed of four voltage detectors, reference units, a delay circuit, a short circuit protector, an oscillator, a counter, and a logic circuit. SOT-23-6 package is available.
|Manufactured with High Voltage Tolerant Absolute Maximum Rating Process||Supply Voltage (VDD)||12V (Absolute Maximum Rating)|
|Charge Negative Input voltage (V-)||-35V (Absolute Maximum Rating)|
|Low supply current||Supply Current (IDD)||Typ.4.0µA|
|Standby Current (Is)||Max.0.1µA (C Version)
Max.2.0µA (B, D Version)
|High accuracy detector threshold||Over-charge||±25mV (25°C), ±30mV (-5 to 55°C)|
|Variety of detector threshold||Over-charge||4.0V to 4.5V (0.005V steps)|
|Over-discharge||2.0V to 3.0V (0.1V steps)|
|Excess discharge-current||0.05V to 0.20V (0.005V steps)|
|Internal fixed Output delay time||Over-charge detector Output Delay||Typ.1.0s or 0.25s|
|Over-discharge detector Output Delay||Typ.20ms|
|Excess discharge-current||Typ.6ms or 12ms|
|Excess charge-current||Typ.8ms or 16ms|
|Short Circuit detector Output Delay||Typ.200µs or 300µs|
|Output Delay Time Shortening Function||At COUT is “H”, if V-level is set at –2.0V, the Output Delay time of detector and release the over-charge and over-discharge can be reduced.
Delay time for over-charge becomes about 1/57 of normal state.