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Part: S-8233CSeries
Category:
Power Management
-> Battery Management
-> Battery Monitoring
Description:
Company: Seiko Instruments USA, Inc.
Datasheet: Download S-8233CSeries datasheet File size : 4 kB
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Datasheet text preview:
Rev.2.0
BATTERY PROTECTION IC (FOR A 3-SERIAL-CELL PACK)
S-8233A SERIES
The 8233A is a series of lithium-ion rechargeable battery protection ICs incorporating high-accuracy voltage detection circuits and delay circuits. It is suitable for a 3-serial-cell lithium-ion battery pack. n
Features
(1) Internal high-accuracy voltage detection circuit Y Over charge detection voltage Y Over charge release voltage 4.10 ± 0.05 V to 4.35 ± 0.05 V 0.05 V- step 3.85 ± 0.10 V to 4.35 ± 0.10 V 0.05 V- step (The over charge release voltage can be selected within the range where a difference from over charge detection voltage is 0 to 0.3 V) Y Over discharge detection voltage Y Over discharge release voltage 2.00 ± 0.08 V to 2.70± 0.08 V 0.10 V- step 2.00 ± 0.10 V to3.70± 0.10 V 0.10 V - step (The over discharge release voltage can be selected within the range where a difference from over discharge detection voltage is 0 to 1.0V) Y Over current detection voltage 1 0.15 V±10% to 0.50 V±10% 0.05 V-step (2) (3) (4) (5) (6) (7) (8) High input-voltage device (absolute maximum rating: 26 V) W ide 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 Y Operation Y Power-down (9) 14-pin SOP package 50 µA max (+25 °C) 0.1 µA max (+25 °C)
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Applications
Lithium-ion rechargeable battery packs
Seiko Instruments Inc.
1
Battery Protection IC(for a 3-serial-cell pack) S-8233A Series
Rev.2.0
n Selection Guide
Table1
Model/Item Over charge detection voltage S-8233ACFE/FT S-8233ADFE/FT S-8233AEFE/FT S-8233AFFE/FT S-8233AGFE/FT S-8233AIFE/FT S-8233AJFE/FT S-8233AKFE/FT S-8233ALFE/FT S-8233AMFE/FT 4.25±0.05V 4.10±0.05V 4.25±0.05V 4.35±0.05V 4.25±0.05V 4.25±0.05V 4.35±0.05V 4.35±0.05V 4.35±0.05V 4.35±0.05V Over charge release voltage 4.05±0.10V 4.10±0.10V 4.05±0.10V 4.05±0.10V 4.10±0.10V 4.05±0.10V 4.05±0.10V 4.05±0.10V 4.05±0.10V Over discharge detection voltage 2.00±0.08V 2.00±0.08V 2.30±0.08V 2.40±0.08V 2.40±0.08V 2.30±0.08V 2.40±0.08V 2.40±0.08V 2.40±0.08V 2.40±0.08V Over discharge release voltage 2.30±0.10V 2.30±0.10V 2.70±0.10V 2.70±0.10V 2.70±0.10V 3.00±0.10V 2.70±0.10V 2.70±0.10V 2.70±0.10V 2.70±0.10V Over current 0V battery
detection voltage1 charging function 0.20V±10% 0.20V±10% 0.15V±10% 0.50V±10% 0.40V±10% 0.15V±10% 0.30V±10% 0.15V±10% 0.40V±10% 0.30V±10% Unavailable Unavailable Unavailable Available Available Unavailable Unavailable Unavailable Available Available
Without over charge detection hysteresis.
Last 2 digits shows package type. FE14pin SOP, FT16pin TSSOP 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.2.0 n
Battery Protection IC(for a 3-serial-cell pack) S-8233A Series
Block Diagram
VCC
Reference voltage 1 + - Battery 1 Over charge
Over current 2,3 delay circuit
Over current detection circuit
VMP
CD1
+ - Battery 1 Over discharge
Over current,P delay circuit
COVT
VC1
Battery 1 Over charge + - Battery 2 Over charge
Over discharge delay circuit
CDT
Control Logic
Over charge delay circuit
CD2
+ - Battery 2 Over discharge
CCT
Reference voltage 2
VC2
Battery 2 Over charge + - Battery 3 Over charge
DOP
CD3
+ - 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.
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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