Details, datasheet, quote on part number: S-8232ACFT
PartS-8232ACFT
CategoryPower Management => Battery Management => Battery Protection => Lithium-Ion Rechargeable Battery Protection
TitleLithium-Ion Rechargeable Battery Protection
DescriptionFunction = For 2-cell ;; Overcharge Detection Voltage (Accuracy) = 3.9-4.6 V (±25 MV) ;; Overdischarge Detection Voltage (Accuracy) = 1.7-2.6 V (±80 MV) ;; Overcurrent Detection Voltage 1 (Accuracy) = 0.07-0.3 V (±20 MV) ;; Overcharge Detection Delay Time = 1.0s (C=0.22uF) ;; Package (Power Dissipation) = 8-pin Tssop (300 MW)
CompanySeiko Instruments
DatasheetDownload S-8232ACFT datasheet
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Features, Applications

The is a series of lithium-ion rechargeable battery protection ICs incorporating high-accuracy voltage detection circuits and delay circuits. The S-8232 is suitable for a 2-serial-cell lithium-ion battery pack.

Features

(1) Internal high-accuracy voltage detection circuit Overcharge detection voltage Overcharge release voltage mV 5 mV- step mV 5 mV- step (The Overcharge release voltage can be selected within the range where a difference from Overcharge detection voltage 0.3 V) Overdischarge detection voltage Overdischarge release voltage mV 50 mV- step mV - step (The Overdischarge release voltage can be selected within the range where a difference from Overdischarge detection voltage 1.2 V) Overcurrent detection voltage mV 5 mV-step (3) (4) High input-voltage device (absolute maximum rating: 18 V) Wide operating voltage range: 16 V The delay time for every detection can be set via an external capacitor. Each delay time for Overcharge detection, Overdischarge detection, Overcurrent detection are "Proportion of hundred to ten to one." Two overcurrent detection levels (protection for short-circuiting) Internal auxiliary over voltage detection circuit (Fail safe for over voltage) Internal charge circuit for 0 V battery (Unavailable is option) Low current consumption Operation Power-down mode 7.5 A typ. 14.2 A max to +85 C) 0.2 nA typ. 0.1 A max to +85 C)

Applications
Model/Item Overcharge detection V25 mV Overdischarge Overcharge detection release V50 mV

Overcharge 0 V battery detection delay charging time (tCU) function 1.0 s Available Unavailable Available Unavailable Available Unavailable Available Unavailable Available Unavailable Available Unavailable Available Unavailable Available

No overcharge detection/release hysteresis The magnification of final overcharge is 1.11; other 1.25. No final overcharging function Refer to the Description of Operation (*3).

Change in the detection voltage is available. Please contact SII sales office.

The overdischarge detection voltage can be selected within the range from 3.0 V. When the overdischarge detection voltage is higher than 2.6 V, the overcharge detection voltage and the overcharge release voltage are limited as table 2.

Overdischarge detection 3.00 V Table 2 Overcharge detection Voltage difference between overcharge detection voltage voltage1,2 (VCU1,2) and overcharge release voltage 0.10 V

Over current detection circuit Delay circuit control signal Delay circuit control signal Delay circuit control signal Delay circuit DO,CO control signal

Auxiliary Over charge Reference detector 2 voltage 2

Output impedance when CO terminal output `L' is higher than DO terminal. RCOL resistor is connected with CO terminal. Please refer `Electric Characteristics'.


 

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Some Part number from the same manufacture Seiko Instruments
S-8232AEFT Function = For 2-cell ;; Overcharge Detection Voltage (Accuracy) = 3.9-4.6 V (±25 MV) ;; Overdischarge Detection Voltage (Accuracy) = 1.7-2.6 V (±80 MV) ;; Overcurrent Detection Voltage 1 (Accuracy)
S-8233A Function = For 3-cell ;; Overcharge Detection Voltage (Accuracy) = 4.1-4.35 V (±50 MV) ;; Overdischarge Detection Voltage (Accuracy) = 2.0-2.7 V (±80 MV) ;; Overcurrent Detection Voltage 1 (Accuracy)
S-8233B Function = For 3-cell ;; Overcharge Detection Voltage (Accuracy) = 3.8-4.4 V (±25 MV) ;; Overdischarge Detection Voltage (Accuracy) = 2.0-2.8 V (±80 MV) ;; Overcurrent Detection Voltage 1 (Accuracy)
S-8233C
S-8241 Function = For 1-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-8242 Function = For 2-cell ;; Overcharge Detection Voltage (Accuracy) = 3.9-4.4 V (±25 MV) ;; Overdischarge Detection Voltage (Accuracy) = 2.0-3.0 V (±50 MV) ;; Overcurrent Detection Voltage 1 (Accuracy)
S-8243A Function = For 3 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 Voltage
 
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