Product Overview
16-Pin TSSOP (FT016-A)Temperature protection function: Available (S-82C4A/5A) | Unavailable (S-82B4A/5A)
This IC is a protection IC for lithium-ion rechargeable batteries, which includes temperature protection circuits, high-accuracy voltage detection circuits, and delay circuits. Temperature protection is possible by connecting an NTC thermistor to the dedicated connection pin. It is suitable for protecting 4-serial or 5-serial cell lithium-ion rechargeable battery packs from overcharge, overdischarge, and overcurrent.
Features
- High-accuracy voltage detection for each cell
- Overcharge detection voltage n: 3.900 V to 4.500 V (25 mV step) Accuracy ±20 mV
- Overcharge release voltage n: 3.500 V to 4.500 V*1 Accuracy ±50 mV
- Overdischarge detection voltage n: 2.000 V to 3.200 V (100 mV step) Accuracy ±50 mV
- Overdischarge release voltage n: 2.000 V to 3.400 V*2 Accuracy ±100 mV
- Three-level discharge overcurrent detection
- Discharge overcurrent 1 detection voltage: 10 mV to 200 mV (5 mV step) Accuracy ±5 mV
- Discharge overcurrent 2 detection voltage: 20 mV to 300 mV (5 mV step) Accuracy ±10 mV
- Load short-circuiting detection voltage: 50 mV to 400 mV (10 mV step) Accuracy ±20 mV
- Charge overcurrent detection
- Charge overcurrent detection voltage: −200 mV to −10 mV (5 mV step) Accuracy ±5 mV
- Discharge overcurrent 1 detection delay time is settable by an external capacitor (The other delay time are internally fixed)
- Power saving control by a control pin
- 0 V battery charge
- Enabled, inhibited
- Power-down function
- Available, unavailable
- Release condition of discharge overcurrent status
- Load disconnection, charger connection
- Output voltage of CO and DO pin is limited to VC2 pin voltage. (S-82C5A Series)
- Detecting temperature is possible with connecting an NTC thermistor at four different points of high-and-low temperatures during charging and of high-and-low temperatures during charge-discharge.
- High temperature charge-discharge inhibition temperature: +40°C to +85°C (1°C step) Accuracy ±3°C*3
- High temperature charge inhibition temperature: +40°C to +85°C (1°C step) Accuracy ±3°C*3
- Low temperature charge inhibition temperature: −40°C to +10°C (1°C step) Accuracy ±3°C*3
- Low temperature charge-discharge inhibition temperature: −40°C to +10°C (1°C step) Accuracy ±3°C*3
- High-withstand voltage
- Absolute maximum rating 28.0 V
- Wide operating voltage range
- 5.0 V to 24.0 V
- Wide operation temperature range
- Ta = −40°C to +85°C
- Low current consumption
- During operation: 5.0 μA typ., 10 μA max. (Ta = +25°C)
- During power-down: 0.1 μA max. (Ta = +25°C)
- During power-saving: 0.1 μA max. (Ta = +25°C)
- Lead-free (Sn 100%), halogen-free
*1. Overcharge release voltage = Overcharge detection voltage − Overcharge hysteresis voltage
(Overcharge hysteresis voltage n can be selected from a range of 0 V to 0.4 V in 50 mV steps.)
*2. Overdischarge release voltage = Overdischarge detection voltage + Overdischarge hysteresis voltage
(Overdischarge hysteresis voltage n can be selected from a range of 0 V to 0.7 V in 100 mV steps.)
*3. Temperature detection accuracy varies with NTC thermistor specifications.
Remark n = 1, 2, 3, 4, 5
Applications
- Lithium-ion rechargeable battery packs