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Part: S-8233CAFT
Category:
Power Management
-> Battery Management
-> Battery Protection
-> Lithium-Ion Rechargeable Battery Protection
Description: Function = For 3-cell ;; Overcharge Detection Voltage (Accuracy) = 3.8-4.4 V (±50 MV) ;; Overdischarge Detection Voltage (Accuracy) = 2.0-2.8 V (±80 MV) ;; Overcurrent Detection Voltage 1 (Accuracy) = 0.15-0.5 V (±10%) ;; Overcharge Detection Delay Time = 1.0s (C=0.47 UF) ;; Package (Power Dissipation) = 16-pin Tssop (300 MW)
Company: Seiko Instruments
Datasheet: Download S-8233CAFT datasheet File size : 4 kB
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Datasheet text preview:
Rev.3.1_00
BATTERY PROTECTION IC (FOR A 3-SERIAL-CELL PACK)
S-8233C SERIES
The 8233C is a series of lithium-ion rechargeable battery protection ICs incorporating high-accuracy voltage detection circuits and delay circuits. The 8233C output signals according to battery voltage. It is suitable for a 3-serial-cell lithium-ion battery pack.
Features
(1) Internal high-accuracy voltage detection circuit Over charge detection voltage Over charge release voltage 3.80 ± 0.05 V to 4.40 ± 0.05 V 5 mV - step 3.45 ± 0.10 V to 4.40 ± 0.10 V 5 mV - step (The over charge release voltage can be selected within the range where a difference from over charge detection voltage is 0 to 0.35 V at 50 mV - Step) Over discharge detection voltage Over discharge release voltage 2.00 ± 0.08 V to 2.80± 0.08 V 50 mV - step 2.00 ± 0.10 V to4.00± 0.10 V 50 mV - step (The over discharge release voltage can be selected within the range where a difference from over discharge detection voltage is 0 to 1.2V at 50 mV - Step) Over current detection voltage 1 0.15 V±10% to 0.50 V±10% 50 mV - step (2) High input-voltage device (absolute maximum rating: 26 V) (3) Indicates Li-ion battery state. (4) Wide operating voltage range: 2 V to 24 V (5) The delay time for every detection can be set via an external capacitor. (6) Three over current detection levels (protection for short-circuiting) (7) Internal charge/discharge prohibition circuit via the control terminal (8) The function for charging batteries from 0 V is available. (9) Low current consumption Operation Power-down (10) 16-pin TSSOP package 50 µA max (+25 °C) 0.1 µA max (+25 °C)
Applications
Lithium-ion rechargeable battery packs
Seiko Instruments Inc.
1
Battery Protection IC(for a 3-serial-cell pack) S-8233C Series
Rev.3.1_00
Selection Guide
Table1
Model/Item Over charge detection voltage S-8233CAFT 4.25±0.05V Over charge release voltage 4.05±0.10V Over discharge detection voltage 2.00±0.08V Over discharge release voltage 2.30±0.10V Over current 0V battery detection voltage1 charging function 0.25V±10% -
Change in the detection voltage is available in products other than the above listed ones. Contact the SII Semiconductor Products Sales Department.
2
Seiko Instruments Inc.
Rev.3.1_00
Battery Protection IC(for a 3-serial-cell pack) S-8233C Series
Block Diagram
VCC
Reference voltage 1
Over current 2,3 delay circuit
Over current detection circuit
VMP
+ CSO
Battery 1 Over charge
+ Battery 1 Over discharge
Over current,P delay circuit
COVT
VC1
Battery 1 Over charge
Over discharge delay circuit
CDT
+ ISO
Control Logic
Battery 2 Over charge Over charge delay circuit
+
Battery 2 Over discharge Reference voltage 2
CCT
-
VC2
Battery 2 Over charge
DOP
+ DSO
Battery 3 Over charge
+
Battery 3 Over discharge Reference voltage 3
COP
-
VSS
Battery 3 Over charge
Floating detection circuit
CTL
Figure 1
The delay time for over current detection 2 and 3 is fixed by an internal IC circuit. The delay time cannot be changed via an external capacitor. 1. If one of the battery voltages becomes higher than the over charge detection voltage (VCU), the CSO terminal goes high. 2. If one of the battery voltages becomes lower than the over discharge detection voltage (VDD), the ISO terminal goes high. 3. If S-8233C series detect over current, the ISO terminal goes high. In normal state each terminal output `Low'.
Seiko Instruments Inc.
3
Others parts begin by s0
S0-1 S0-2 S0-3 S0-4 S0-5 S0-6 S0-7 S0-8 S0-9 S0-10 S0-11 S0-12 S0-13 S0-14 S0-15 S0-16 S0-17 S0-18 S0-19 S0-20 S0-21 S0-22 S0-23
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