SGM41105
SGM41105 is Primary Protector and Switch manufactured by SG Micro.
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-pact 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 bination Options
- Battery Under-Voltage Protection
2.8V/3.0V Options
- 0V Battery Charge Permitted
- 2n A (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
TYPICAL APPLICATION
Battery Pack
Pack P
P 0.1μF
2 SM EP
Sensing Control
VDD 1 R1
100Ω Load
3 BATN
PCKN 4
Pack N
Figure 1. Typical Battery Pack Circuit
Battery...
