details

1 cell battery protection IC s-8261 series

The s-8261 series is a lithium-ion lithium

Protection ic for polymer rechargeable batteries.

This ic is most suitable for overcharging and overdischarging of 1-cell lithium-ion lithium-polymer rechargeable battery packs

Electricity and overcurrent protection.

Features

(1) Built-in high-precision voltage detection circuit

Overcharge detection voltage 3.9 v 4.4 v (corresponding to 5 mv steps) Accuracy 25 mv (25c), 30 mv (5c +55c)

Overcharge hysteresis voltage 0.0 v 0.4 v ×1 Accuracy 25 mv

Overcharge hysteresis voltage selectable from 0.0 v to 0.4 v in steps of 50 mv

Overdischarge detection voltage 2.0 v 3.0 v (corresponding to 10 mv step) Accuracy 50 mv

Overdischarge hysteresis voltage 0.0 v 0.7 v ×2 Accuracy 50 mv

Overdischarge hysteresis voltage can be selected from 0.0 to 0.7 v in 100 mv steps

Overcurrent 1 detection voltage 0.05 v 0.3 v (corresponding to 10 mv step) accuracy 15 mv

Overcurrent 2 detection voltage 0.5 v (fixed) accuracy 100 mv

(2) High withstand voltage devices are used for the terminals connected to the charger (vm terminal, co terminal: absolute maximum rating = 28V)

(3) Various delay times only need to be realized by built-in circuits (overcharge: tcu, overdischarge: tdl, overcurrent 1: tiov1, overcurrent 2: tiov2)

(No external capacitor required) Accuracy 20%

(4) Built-in three-stage overcurrent detection circuit (overcurrent 1, overcurrent 2, load short circuit)

(5) Possible disablement of the charging function to 0 v battery can be selected

(6) Charger detection function, abnormal charging current detection function

The overdischarge hysteresis is released by detecting the negative voltage of the vm terminal (typ. 0.7 v). (Charger detection function)

When the do terminal voltage is at high level (high) and the vm terminal voltage is lower than the charger detection voltage (typ. 0.7 v), the output of the co terminal

output will be set to low level (low). (Abnormal charging current detection function)

(7) Low current consumption

Typical value 3.5 a in working condition 7.0 a maximum value

0.1 a max. in sleep state

(8) Wide operating temperature range 40c +85c

(9) Small package sot-23-6, 6-pin snb(b)

×1. Overcharge release voltage Overcharge detection voltage Overcharge hysteresis voltage (However, it cannot be selected when the overcharge release voltage is 3.8 V)

×2. Overdischarge release voltage Overdischarge detection voltage Overdischarge hysteresis voltage (However, it cannot be selected when the overdischarge release voltage is 3.4 V)

use

Lithium-ion rechargeable battery pack

Lithium polymer rechargeable battery pack

We have cooperated with many manufacturers for many years, the price is favorable, the original authentic product is guaranteed, and detailed information can be provided. Welcome to inquire, qq; 1546282226 Tel / 18138231376 Miss Liu