|Category||Power Management => Battery Management => Battery Protection => Lithium-Ion Rechargeable Battery Protection|
|Title||Lithium-Ion Rechargeable Battery Protection|
|Description||Function = For 2-cell ;; Overcharge Detection Voltage (Accuracy) = 3.9-4.4 V (±25 MV) ;; Overdischarge Detection Voltage (Accuracy) = 2.0-3.0 V (±80 MV) ;; Overcurrent Detection Voltage 1 (Accuracy) = 0.05-0.3 V (±25 MV) ;; Overcharge Detection Delay Time = 1.15s ;; Package (Power Dissipation) = 8-pin Tssop (300 MW)|
|Datasheet||Download S-8253A datasheet
The S-8253A/B Series are protection ICs for or 3-serial cell lithium-ion rechargeable batteries and include high-accuracy voltage detectors and delay circuits. These ICs are suitable for protecting lithium-ion battery packs from overcharge, overdischarge and overcurrent.Features
(1) High-accuracy voltage detection for each cell Overcharge detection voltage (50 mV steps) Accuracy mV *1 Accuracy ±50 mV Overcharge release voltage V *1. Overcharge release voltage = Overcharge detection voltage - Overcharge hysteresis voltage (Overcharge hysteresis voltage to 3) can be selected V or from a range 50 mV steps.) Overdischarge detection voltage (100 mV steps)
Overdischarge release voltage 3.4 V Accuracy mV *2. Overdischarge release voltage = Overdischarge release voltage - Overdischarge hysteresis voltage (Overdischarge hysteresis voltage to 3) can be selected V or from a range 100 mV steps.)
Three-level overcurrent detection (including load short circuiting detection) Overcurrent detection voltage (50 mV steps) Accuracy ±25 mV Overcurrent detection voltage 0.5 V (fixed) Overcurrent detection voltage 1.2 V (fixed) Delay times (overcharge, overdischarge, overcurrent) are generated by an internal circuit (external capacitors are unnecessary). Charge/discharge operation can be inhibited via the control pin. 0 V battery charge function available/unavailable are selectable. High-voltage withstand devices Wide operating voltage range Wide operating temperature range Low current consumption Operation mode Power-down mode 28 µA max. 0.1 µA max. (+25°C) Absolute maximum rating: +85 °CApplications
Lithium-ion rechargeable battery packs Lithium polymer rechargeable battery packs
BATTERY PROTECTION IC FOR OR 3-SERIAL-CELL PACK S-8253A/B Series Block Diagram
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|Some Part number from the same manufacture Seiko Instruments|
|S-8253AAA Function = For 2-cell ;; Overcharge Detection Voltage (Accuracy) = 3.9-4.4 V (±25 MV) ;; Overdischarge Detection Voltage (Accuracy) = 2.0-3.0 V (±80 MV) ;; Overcurrent Detection Voltage 1 (Accuracy)|
|S-8254 Function = For 3 Cells or 4 Cells ;; Overcharge Detection Voltage (Accuracy) = 3.9 V to 4.4 V (±25 MV) ;; Overdischarge Detection Voltage (Accuracy) = 2.0 to 3.0 V (±80 MV) ;; Overcurrent Detection|
|S-8261 Function = For 1-cell ;; Overcharge Detection Voltage (Accuracy) = 3.9-4.4 V (±25mV) ;; Overdischarge Detection Voltage (Accuracy) = 2.0-3.0 V (±50mV) ;; Overcurrent Detection Voltage 1 (Accuracy)|
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