GENERAL DESCRIPTION

The SGM41105 is a monolithic primary protector device

for small Li-Ion or Li-Ion polymer battery cells. The

product integrates all the protections required for safe

operation of polymer rechargeable cells. The device is

packaged in a tiny and thin package. Its small solution

size leaves more space for fitting the battery cell into a

given cavity for small size wearable devices.

A bi-direction blocking switch is integrated with all

essential protection functions for safe operation of the

battery cell, including two for voltage abnormalities and

three for currents. As a battery switch, external input is

provided to set or release off-state. It can be used for

long term stocking and power recycling.

Charging a heavily depleted cell with too low or even

zero voltage is allowed by SGM41105.

The SGM41105 is available in a Green XTDFN-1×1-4L

package. It can operate (keep charge or discharge

blocking) in the -40℃ to +85℃ ambient temperature

range.

FEATURES

● Ultra-Compact Protection Solution

● Pass Resistance: 100mΩ (TYP)

● Operation Current: 0.7μA (TYP)

● Factory Programmable Over-Voltage Threshold

Options 4.225V to 4.6V with 0.025V per Step

● Over-Charge/Discharge Current Protection

3 Thresholds Combination Options

● Battery Under-Voltage Protection

2.8V/3.0V Options

● 0V Battery Charge Permitted

● 2nA (TYP) Deep Discharge Shutdown

● Input Pin for Latch-Off and Release

● Load Short-Circuit Safe

● Battery Pack Paralleling Safe

● Charge Input Voltage Clamp

● Battery Reverse Polarity Safe

● Charge Input Reverse Polarity Safe

● Available in a Green XTDFN-1×1-4L Package

APPLICATIONS

Earphone, Stylus, Bracelet, Watch