s-8211das-m5t1g Seiko Instruments Inc., s-8211das-m5t1g Datasheet

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s-8211das-m5t1g

Manufacturer Part Number
s-8211das-m5t1g
Description
Battery Protection Ic For 1-cell Pack
Manufacturer
Seiko Instruments Inc.
Datasheet
Rev.4.6
BATTERY PROTECTION IC
FOR 1-CELL PACK
Features
Applications
Packages
(1) High-accuracy voltage detection circuit
(2) Detection delay times are generated by an internal circuit (external capacitors are unnecessary).
(3) High-withstanding voltage device is used for charger connection pins (VM pin and CO pin : Absolute maximum
(4) 0 V battery charge function available / unavailable are selectable.
(5) Shutdown function yes / no are selectable.
(6) Wide operating temperature range
(7) Low current consumption
(8) Small package:
(9) Lead-free product
*1. Overcharge release voltage = Overcharge detection voltage − Overcharge hysteresis voltage
*2. Overdischarge release voltage = Overdischarge detection voltage + Overdischarge hysteresis voltage
• Lithium-ion rechargeable battery packs
• Lithium-polymer rechargeable battery packs
SOT-23-5
SNT-6A
• Overcharge detection voltage
• Overcharge release voltage
• Overdischarge detection voltage
• Overdischarge release voltage
• Discharge overcurrent detection voltage
• Load short-circuiting detection voltage
• Operation mode
• Power-down mode
Accuracy ±20%
rating = 28 V)
(Overcharge hysteresis voltage can be selected as 0 V or from a range of 0.1 to 0.4 V in 50 mV step.)
(Overdischarge hysteresis voltage can be selected as 0 V or from a range of 0.1 to 0.7 V in 100 mV step.)
Package Name
_00
MP005-A
PG006-A
Package
Seiko Instruments Inc.
3.6 to 4.4 V (5 mV step)
3.5 to 4.4 V
2.0 to 3.0 V (10 mV step)
2.0 to 3.4 V
0.05 to 0.30 V (10 mV step)
0.5 V (fixed)
−40 to +85 °C
3.0
0.2
SOT-23-5, SNT-6A
µ
µ
The S-8211D Series are protection ICs for single-cell lithium-ion
/ lithium-polymer rechargeable batteries and include high-
accuracy voltage detectors and delay circuits.
These ICs are suitable for protecting single-cell rechargeable
lithium-ion / lithium-polymer battery packs from overcharge,
overdischarge, and overcurrent.
A typ., 5.5
A max. (+25 °C)
MP005-A
PG006-A
Tape
*1
*2
µ
Drawing Code
A max. (+25 °C)
MP005-A
PG006-A
Accuracy ±25 mV (+25 °C)
Accuracy ±30 mV (−5 to +55 °C)
Accuracy ±50 mV
Accuracy ±50 mV
Accuracy ±100 mV
Accuracy ±15 mV
Accuracy ±200 mV
Reel
S-8211D Series
PG006-A
Land
1

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s-8211das-m5t1g Summary of contents

Page 1

... V or from a range of 0 step.) *2. Overdischarge release voltage = Overdischarge detection voltage + Overdischarge hysteresis voltage (Overdischarge hysteresis voltage can be selected from a range of 0 100 mV step.) Applications • Lithium-ion rechargeable battery packs • ...

Page 2

... S-8211D Series Block Diagram 0 V battery charge circuit battery charge DO inhibition circuit CO R VMD VM R VMS Remark All diodes shown in figure are parasitic diodes. 2 Output control circuit Divider control circuit Charger detection circuit + − Discharge overcurrent detection comparator + − Load short-circuiting detection ...

Page 3

... Rev.4.6 _00 Product Name Structure 1. Product Name S-8211D xx - *1. Refer to the tape specifications. *2. Refer to the “2. Product Name List”. BATTERY PROTECTION IC FOR 1-CELL PACK xxxx G Package name (abbreviation) and IC packing specifications M5T1 : SOT-23-5, Tape I6T1 : SNT-6A, Tape *2 Serial code Sequentially set from Seiko Instruments Inc ...

Page 4

... S-8211DAK-M5T1G 4.280 V S-8211DAL-M5T1G 4.280 V S-8211DAM-M5T1G 4.275 V S-8211DAR-M5T1G 3.600 V S-8211DAS-M5T1G 3.600 V *1. Refer to the Table 3 about the details of the delay time combinations (1). Remark Please contact our sales office for the products with detection voltage value other than those specified above. (2) SNT-6A Overcharge ...

Page 5

... CU (1) 1.2 s (2) 1.2 s Remark The delay times can be changed within the range listed Table 4. For details, please contact our sales office. Delay Time Overcharge detection delay time Overdischarge detection delay time Discharge overcurrent detection delay time Load short-circuiting detection delay time Remark The value surrounded by bold lines is the delay time of the standard products ...

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... Connection for negative power supply input 5 VDD Connection for positive power supply input Voltage detection between VM pin and VSS pin 6 VM (Overcurrent / charger detection pin) *1. The NC pin is electrically open. The NC pin can be connected to VDD or VSS. Seiko Instruments Inc. Rev.4.6 Table 5 Description Table 6 Description _00 ...

Page 7

... Board size: 114.3 mm × 76.2 mm × t1.6 mm (2) Board name: JEDEC STANDARD51-7 Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must therefore not be exceeded under any conditions. Figure 4 Power Dissipation of Package (When Mounted on Board) ...

Page 8

... CO pin resistance “H” CO pin resistance “L” DO pin resistance “H” DO pin resistance “L” *1. Since products are not screened at high and low temperature, the specification for this temperature range is guaranteed by design, not tested in production. *2. In any conditions, Load short-circuiting detection voltage ( ...

Page 9

... CO pin resistance “H” CO pin resistance “L” DO pin resistance “H” DO pin resistance “L” *1. Since products are not screened at high and low temperature, the specification for this temperature range is guaranteed by design, not tested in production. *2. In any conditions, Load short-circuiting detection voltage ( ...

Page 10

... Overcharge detection delay time Overdischarge detection delay time Discharge overcurrent detection delay time Load short-circuiting detection delay time *1. Since products are not screened at high and low temperature, the specification for this temperature range is guaranteed by design, not tested in production. (2) S-8211DAF Item DELAY TIME (Ta = 25°C) ...

Page 11

... Condition 3, Test Circuit 2) Load short-circuiting detection voltage (V delay time for changing V DO delay time when the voltage V2 is increased rapidly (within 10 µs) from the starting condition 3 (5) Operating Current Consumption (Test Condition 4, Test Circuit 2) The operating current consumption ( ...

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... CO pin under the set conditions 3 COH ) is the resistance at the CO pin under the set conditions 4 COL ) is the resistance at the DO pin under the set conditions 3 DOH ) is the resistance at the DO pin under the set conditions 1 DOL ...

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... Discharge Overcurrent Detection Delay Time (Test Condition 9, Test Circuit 5) Discharge overcurrent detection delay time (t momentarily increases (within 10 µs) from 0.35 V under the set conditions 3 (17) Load Short-circuiting Detection Delay Time (Test Condition 9, Test Circuit 5) Load short-circuiting detection delay time (t momentarily increases (within 10 µ ...

Page 14

... COM Figure 5 Test Circuit VDD V1 S-8211D Series VSS DO COM Figure 7 Test Circuit 3 VDD V1 S-8211D Series VSS DO Oscilloscope COM Figure 9 Test Circuit Oscilloscope V2 Seiko Instruments Inc VDD V1 S-8211D Series VSS ...

Page 15

... When the discharge is started by connecting a load after the overcharge detection, the VM pin voltage rises more than the voltage at VSS pin due to the V flows through the parasitic diode in the charging control FET. If this VM pin voltage is higher than or equal to the discharge overcurrent detection voltage (V voltage is lower than or equal to the overcharge detection voltage (V Caution 1 ...

Page 16

... Discharge Overcurrent Status (Discharge Overcurrent, Load Short-circuiting) When a battery in the normal status is in the status where the voltage of the VM pin is equal to or higher than the discharge overcurrent detection voltage because the discharge current is higher than the specified value and the status lasts for the discharge overcurrent detection delay time, the discharge control FET is turned off and discharging is stopped ...

Page 17

... CHA off the charge-control FET to stop charging. This is detection for irregular charging current. This function works in the case that the DO pin voltage is in “H”, and the VM pin voltage becomes lower than the charger detection voltage (V S-8211D turns off the charge-control FET to stop charging; the DO pin voltage goes in “H” so that the battery voltage ...

Page 18

... Series turns the discharging control FET off via overcurrent detection. In this case, if the recovery of the battery voltage is so slow that the battery voltage after the overdischarge detection delay time is still lower than the overdischarge detection voltage, S-8211D Series shifts to the power-down status. ...

Page 19

... EB− Charger connection Load connection Overcharge detection delay time (t *1 Mode *1. (1) : Normal mode (2) : Overcharge mode (3) : Overdischarge mode Remark The charger is assumed to charge with a constant current. BATTERY PROTECTION IC FOR 1-CELL PACK ) Overdischarge detection delay time (t CU (1) (2) Figure 11 Seiko Instruments Inc. ...

Page 20

... VM pin voltage V SHORT V DIOV V SS Load connection Discharge overcurrent detection delay time (t *1 Mode *1. (1) : Normal mode (2) : Discharge overcurrent mode Remark The charger is assumed to charge with a constant current. 20 Load short-circuiting ) detection delay time (t DIOV (1) (2) (1) Figure 12 Seiko Instruments Inc. Rev.4.6 _00 ) ...

Page 21

... VM pin voltage CHA Charger connection Load connection *1 Mode *1. (1) : Normal mode (2) : Overdischarge mode Remark The charger is assumed to charge with a constant current. BATTERY PROTECTION IC FOR 1-CELL PACK Overdischarge detection delay time ( (1) Figure 13 Seiko Instruments Inc. S-8211D Series In case VM pin voltage < V ...

Page 22

... CHA Charger connection Load connection *1 Mode *1. (1) : Normal mode (2) : Overdischarge mode (3) : Overcharge mode Remark The charger is assumed to charge with a constant current. 22 Overdischarge detection Abnormal charging current detection delay time delay time ( Overcharge detection delay time (t DL (2) (1) Figure 14 Seiko Instruments Inc. ...

Page 23

... R2 Resistor connection of a charger *1. If the threshold voltage of an FET is low, the FET may not cut the charging current FET with a threshold voltage equal to or higher than the overdischarge detection voltage is used, discharging may be stopped before overdischarge is detected. *2. If the withstanding voltage between the gate and source is lower than the charger voltage, the FET may be destroyed. ...

Page 24

... Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic protection circuit. • SII claims no responsibility for any and all disputes arising out connection with any infringement by products including this IC of patents owned by a third party. ...

Page 25

... Ta [°C] (3) I vs. V OPE Overcharge Detection / Release Voltage, Overdischarge Detection / Release Voltage, Overcurrent Detection Voltage, and Delay Time ( 4.350 4.345 4.340 4.335 4.330 4.325 4.320 4.315 4.310 4.305 4.300 −40 −25 ...

Page 26

... Ta [°C] ( 7585 Ta [°C] (10 [° [°C] Seiko Instruments Inc. vs −40 − [°C] vs 200 190 180 170 160 150 ...

Page 27

... DO 0 −0.05 −0.10 −0.15 −0.20 −0.25 −0. BATTERY PROTECTION IC FOR 1-CELL PACK (13 7585 Ta [° 7585 Ta [°C] ( [ [V] DO Seiko Instruments Inc. S-8211D Series vs. V SHORT DD 0.65 0.63 0.61 0.59 0.57 0.55 0.53 0.51 0.49 0.47 0.45 3.0 3.5 4.0 V [V] DD vs. V COL CO 0.5 0.4 0.3 0.2 0 ...

Page 28

... Product Name vs. Product Code Product Name S-8211DAB-M5T1G S-8211DAE-M5T1G S-8211DAH-M5T1G S-8211DAI-M5T1G S-8211DAJ-M5T1G S-8211DAK-M5T1G S-8211DAL-M5T1G S-8211DAM-M5T1G S-8211DAR-M5T1G S-8211DAS-M5T1G Remark Please contact our sales office for the products other than those specified above. (2) SNT-6A SNT-6A Top view Product Name vs. Product Code ...

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... Use of the information described herein for other purposes and/or reproduction or copying without the express permission of Seiko Instruments Inc. is strictly prohibited. The products described herein cannot be used as part of any device or equipment affecting the human body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior written permission of Seiko Instruments Inc ...

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