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Part: S-8233BSeries
Category:
Power Management
-> Battery Management
-> Battery Monitoring
Description:
Company: Seiko Instruments USA, Inc.
Datasheet: Download S-8233BSeries datasheet File size : 4 kB
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Datasheet text preview:
Contents
Features ..... 1 Applications ......... 1 Selection Guide ......... 2 Block Diagram ..... 3 Pin Assignment....4 Pin Description .... 4 Absolute Maximum Ratings ......... 4 Electrical Characteristics.....5 Measuremnet Circuits.........7 Description .. 12 Operation Timing Charts.....16 Battery Protection IC Connection Example .......... 18 Precautions .......... 19 Dimensions .......... 20 Markings ..... 20 Taping .......21 Characteristcs (typical characteristics)........23
21 August,1997
BATTERY PROTECTION IC (FOR A 3-SERIAL-CELL PACK)
S-8233B SERIES
The 8233B is a series of lithium-ion rechargeable battery protection ICs incorporating high-accuracy (±25 mV) voltage detection circuits and delay circuits. It is suitable for a 3-serial-cell lithium-ion battery pack.
Features
(1)
Over charge detection voltage Over charge release voltage
Internal high-accuracy voltage detection circuit 3.80 ± 0.025 V to 4.40 ± 0.025 V 5 mV - step 3.45 ± 0.100 V to 4.40 ± 0.100 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 with 50 mV - step) 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 with 50 mV - step) 0.15 V ±10% to 0.50 V ±10% 50 mV - step
Over discharge detection voltage Over discharge release voltage
Over current detection voltage 1
(2) (3) (4) (5) (6) (7) (8)
High input-voltage device (absolute maximum rating: 26 V) Wide operating voltage range: 2 V to 24 V The delay time for every detection can be set via an external capacitor. Three over current detection levels (protection for short-circuiting) Internal charge/discharge prohibition circuit via the control terminal The function for charging batteries from 0 V is available. Low current consumption 50µA max. (+25°C) 0.1µA max. (+25°C)
Operation Power-down
(9)
16-pin TSSOP package
Applications
Lithium-ion rechargeable battery packs
Seiko Instruments Inc.
1
Battery Protection IC(for a 3-serial-cell pack) S-8233B Series
21 August,1997
Selection Guide
Table1
Model/Item Over charge detection voltage S-8233BAFT 4.225±0.025V S-8233BBFT 4.325±0.025V Over charge Over discharge Over discharge release voltage *1 4.10±0.10V detection voltage 2.30±0.08V 2.30±0.08V 2.70±0.10V 2.70±0.10V release voltage Over current detection voltage1 0.20V±10% 0.20V±10% 0V battery charging function Unavailable Unavailable Available Unavailable normal reverse Conditioning function CTL logic
*1) Without over charge detection / release hysteresis. *2) The input voltage of CTL for normal condition is changed by the CTL logic. (Please refer description). 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.
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