SoM vs. IPC? – A Quick and Simple Explanation +++ Lead Time Trends +++ New Lines: FORESEE and ATTEND

For Safe Li-Ion Battery Operation in Metal Housings:
The New S-821A/1B Series from ABLIC Provides Protection

A short circuit of Li-Ion batteries in metal casings can completely destroy your device.
Take precautions right from the start of your application development and play it safe.

Use the S-821A/1B series from ABLIC for the safe protection of 1-cell lithium-ion batteries in metal housings. Developed for maximum safety and performance, these innovative protection ICs offer numerous advantages for demanding applications.

1. Compact and safe battery operation:

Thanks to high-side protection with N-channel MOSFETs, the S-821A/1B ICs effectively prevent short circuits via the metal casing of the batteries.

This allows for a compact setup of multiple batteries without compromising on safety.

2. Low power consumption for maximum efficiency:

The S-821A/1B series impresses with extremely low power consumption. With a power-save signal pin, consumption can be reduced to a maximum of 50 nA – ideal for energy-sensitive applications and extended battery life.

3. Comprehensive protection for a longer service life:

With integrated overcharge, overdischarge and overheat protection, as well as the industry-leading triple boost charge pump, these ICs ensure reliable control and safety for the batteries. The three-stage overdischarge protection detects abnormal currents and protects against load short circuits. This increases the longevity of the batteries used.

Technical specifications:

• Recognition voltage for overcharging: 3.50 to 4.80 V ±15 mV
• Recognition voltage for deep discharging: 2.00 to 3.00 V ±50 mV
• Charging function at 0 V at the battery (allowed, not allowed)
• Current consumption in operation: 6.0 µA typ
• Self-current consumption in deep discharge (automatic): 50 nA max.
• Self-current consumption in power-saving mode (external PS signal): 50 nA max.
• Maximum operating voltage: 28 V
• Operating temperature range: -40 to 85 °C

You can choose between two variants: the S-821A and the slightly more precise S-821B. Both ICs are available in very small SNT-8A (1.97x2.46x0.5 mm) and WLP-8V (1.08x1.52x0.35 mm) housings.

Start your development with GLYN-SUPPORT and the S-821AAAA evaluation board.

• Connections for power supply and battery
• 9 measuring points
• Small design

Order your free evaluation board* now!
* while stocks last