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S-8240A Series
www.ablic.com
BATTERY PROTECTION IC FOR 1-CELL PACK
© ABLIC Inc., 2015-2020
Rev.3.2_00
The S-8240A Series is a protection IC for lithium-ion / lithium polymer rechargeable batteries and includes high-accuracy voltage detection circuits and delay circuits. The S-8240A Series is suitable for protecting 1-cell lithium-ion / lithium polymer rechargeable battery packs from overcharge, overdischarge, and overcurrent.
Features
• High-accuracy voltage detection circuit
Overcharge detection voltage
3.500 V to 4.600 V (5 mV step)
Accuracy ±20 mV
Overcharge release voltage
3.100 V to 4.600 V*1
Accuracy ±50 mV
Overdischarge detection voltage
2.000 V to 3.400 V (10 mV step)
Accuracy ±50 mV
Overdischarge release voltage
2.000 V to 3.400 V*2
Accuracy ±100 mV
Discharge overcurrent detection voltage
0.015 V to 0.200 V (5 mV step)
Accuracy ±5 mV
Load short-circuiting detection voltage
0.065 V to 0.500 V (25 mV step)*3 Accuracy ±40 mV
Charge overcurrent detection voltage
−0.200 V to −0.015 V (5 mV step) Accuracy ±5 mV
• Detection delay times are generated only by an internal circuit (external capacitors are unnecessary).
• 0 V battery charge:
Enabled, inhibited
• Power-down function:
Available, unavailable
• Release condition of discharge overcurrent status: Load disconnection, charger connection
• Release voltage of discharge overcurrent status: VRIOV, VDIOV
• High-withstand voltage:
VM pin and CO pin: Absolute maximum rating 28 V
• Wide operation temperature range:
Ta = −40°C to +85°C
• Low current consumption
During operation:
1.5 μA typ., 3.0 μA max. (Ta = +25°C)
During power-down:
50 nA max. (Ta = +25°C)
During overdischarge:
500 nA max. (Ta = +25°C)
• Lead-free (Sn 100%), halogen-free
*1. Overcharge release voltage = Overcharge detection voltage − Overcharge hysteresis voltage (Overcharge hysteresis voltage can be selected from a range of 0 V to 0.4 V in 50 mV step.)
*2. Overdischarge release voltage = Overdischarge detection voltage + Overdischarge hysteresis voltage (Overdischarge hysteresis voltage can be selected from a range of 0 V to 0.7 V in 100 mV step.)
*3. Load short-circuiting detection voltage = Discharge overcurrent detection voltage + 0.025 × n (n can be selected from any integer value greater or equal to 2)
Applications
• Lithium-ion rechargeable battery pack • Lithium polymer rechargeable battery pack
Packages
• SOT-23-6 • SNT-6A • HSNT-6(1212)
1
BATTERY PROTECTION IC FOR 1-CELL PACK S-8240A Series
Block Diagram
VDD VSS
VM
Overdischarge detection comparator
Overcharge detection comparator
Discharge overcurrent detection comparator
Load short-circuiting detection comparator
Control logic Delay circuit
Oscillator
Charge overcurrent detection comparator
Rev.3.2_00
DO CO
Figure 1
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Rev.3.2_00 Product Name Structure
1. Product name
S-8240A xx - xxxx U
BATTERY PROTECTION IC FOR 1-CELL PACK S-8240A Series
Environmental code U: Lead-free (Sn 100%), halogen-free
Packa.